amastyleinsider

July 18, 2012

Is It an Either/Or or a 50-50 Proposition?

Filed under: punctuation — amastyleinsider @ 2:26 pm
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The usual suspects stand 7½ inches high in a stack next to my computer. They moderate my dogma against what I think lazy or muddled use of punctuation or language by nicely telling me that I am wrong or, worse, that I have become woefully out of date.

No, I don’t wear a string of pearls, hang my reading glasses around my neck, stuff a tissue in the sleeve of my cardigan sweater, or wear my hair swept up in a bun, though my gray strands have thickened to streaks that I fear will dominate my hair soon enough. But I do become cranky about usage trends that render the language imprecise.

My problem is the slash or virgule. It seems to pop up everywhere, from a syllabus for a graduate class to a book assigned in another class. On the syllabus, the assessment subsection head includes “Exam/Term Paper and Class Participation.” Good, I thought, I will be able to pick whether to take the exam or write a paper. But no, as I read on I see there is no choice. The exam is to be written as an essay. Should that expression then be considered a compound modifier of a compound word and expressed with an en dash instead of a slash—“examination–term paper”? The book, on the other hand, discusses a collaborative “Harvard/MIT” study. Clearly, this should have been a hyphen rather than a slash.

But most frequently, I find excessive use of the virgule in the medical research articles I edit. Its prevalence in these articles always surprises me because by nature the virgule is ambiguous while science writing aims at precision—to the point of putting readers to sleep: no active verbs, few identifiable subjects, only statements that remain within the bounds of the data, and no causation, just associations.

So am I justified in being annoyed at what I consider an over-reliance on the slash? As a reader, I favor words and punctuation that make ideas clear. And while I am scrupulous about taking out an and/or construction, as is the mandate of our style manual, by stretching “red and/or white” to “red, white, or both,” I consider my irritation justified when confronted with extending its use to what was submitted in a table footnote for an article I recently edited:

            Rescue was defined as any pharmacological/electrical/surgical intervention for the termination/prevention of AF [atrial fibrillation]/flutter…

I dutifully changed it:

            Rescue was defined as any pharmacological, electrical, or surgical intervention for the termination or prevention of AF [atrial fibrillation] or flutter…

Although I was correct in determining that the slashes suggested an alternative, I could have guessed they meant a series.

Before checking the books, I confirm that the symbol of the virgule, which comes from the Latin virgula, “a little bough, twig; a rod, staff,”1 is defined as a slash in Merriam-Webster’s Collegiate Dictionary.2 Clearly, it looks like what it means, a visual mnemonic perhaps? My understanding of the punctuation mark is that the virgule can mean and or it can mean or, or as my poet-husband suggests, it classically means and/or.

So now to the stack. First up, the AMA Manual of Style,3 which in the introductory paragraph of the Forward Slash (Virgule, Solidus) section says that the virgule “is used to represent per, and, or or and to divide material (eg, numerators and denominator in fractions; month, day, and year in dates [only in tables and figures]; lines of poetry).” Then comes the first major discussion under the section, which says that the slash expresses equivalency “[w]hen 2 terms are of equal weight in an expression and and is implied” and provides the following example:

The diagnosis and initial treatment/diagnostic planning were recorded.

With this definition in mind, how do my above examples stand up to the test? MIT would probably not quibble with being viewed as equivalent to Harvard, but I still think in this case they are functioning, in their capacity as the generators of a study, as a compound modifier and should be hyphenated, even though and is implied. I think the same goes for my “exam/essay” example because and is not implied. They are a single concept as the major assessment for the class. And for my table footnote, while they represent equivalent interventions, the word and is not implied, but the expression “termination/prevention” could have been left alone as equivalent ideas. However, I think changing “AF/flutter” to “AF or flutter” was correct because I don’t think the experience is equivalent. (However, I am told by one of our medical editors that AF/flutter is so constructed because a patient’s heart rhythms may vacillate between the 2 states so that treatment and outcome are similar, thereby, demonstrating another example of the virgule serving as a visual reality.)

Fowler’s Modern English Usage4 and The Elements of Style5 are silent on the matter. The Associated Press Stylebook6 allows its use only to describe “phrases such as 24/7 or 9/11” and advises writers and editors to “otherwise confine its use to special situations, as with fractions or denoting the ends of a line in quoted poetry.”

The Chicago Manual of Style7 says, “A slash most commonly signifies alternatives. In certain contexts it is a convenient (if somewhat) informal shorthand for or. It is also used for alternative spellings or names. Where one or more of the terms separated by slashes is an open compound, a space before and after the slash can be helpful.” Although coming at it from the alternative angle rather than equivalent angle, I think my editing still stands. Nevertheless, I think the Chicago Manual captures the spirit of the slash in response to the speed brought on by the age of the Internet and people like my boss, who said, “I like it. It’s fast.”

As for me, the confusion of meaning slows me down. I vote for words.—Beverly Stewart, MSJ

1. University of Notre Dame. Latin dictionary and grammar aid Web page.
http://www.nd.edu/~archives/latin.htm
. Accessed July 16, 2012.

2. Virgule. Merriam-Webster’s Collegiate Dictionary. 11th ed. Springfield, MA; Merriam-Webster Inc; 2003:1397.

3. Iverson C, Christiansen S, Flanagin A, et al. AMA Manual of Style: A Guide for Authors and Editors. 10th ed. New York, NY: Oxford University Press; 2007.

4. Burchfield RW. Fowler’s Modern English Usage. 3rd rev ed. New York, NY: Oxford University Press; 2004.

5. Strunk W, White EB. The Elements of Style. 4th ed. New York, NY: Longman; 2000.

6. Goldstein N, ed. The Associated Press Stylebook and Briefing on Media Law. New York, NY: Basic Books; 2007.

7. The Chicago Manual of Style. 16th ed. Chicago, IL: University of Chicago Press; 2010.

July 12, 2012

Questions From Users of the Manual

Filed under: references — amastyleinsider @ 10:23 am
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Q: Does your style require parenthetical page numbers after the superscript citation of the reference number on all references or just direct quotations?

A: The manual does not “require” page numbers with any in-text citations. If an author wishes to cite different page numbers from a single reference source at different places in the text, the page number or page numbers may be included in the superscript citation and the source appears only once in the reference list. The superscript may include more than a single page number and/or citation of more than a single reference, and all spaces are closed up.

  • These patients showed no sign of protective sphincteric adduction.3(p21),9
  • Westman5(pp3,5) reported 8 cases in which vomiting occurred.

An author may also wish to use such a reference to an exact page after citing a quotation, directing the reader to the page on which the quotation appears. See section 3.6  for more details on this point.

Q: When a reference is cited in the text and the author is named as part of the citation, how should a 2-author citation be mentioned? Or a citation involving 3 or more authors?

A: We recommend the following:

  • Doe and Roe8 reported on the survey.
  • Doe et al10 reported on the survey.

Of course it is also acceptable to cite a reference and not give an author’s name (or authors’ names) in the text, or to use “and colleagues” or “and associates” or similar phrases rather than “et al.”  See the examples below and section 3.7 for more on this.

  • Several investigators13-16 corroborated these findings.
  • Friedman and colleagues11 reported on this at the 2011 American Heart Association meeting.—Cheryl Iverson, MA

 

July 6, 2012

Right, Almost Right, and Just Plain Wrong: Spelling (and Spacing) Variations

Filed under: punctuation,spelling,usage — amastyleinsider @ 11:09 am
Tags: ,

It is now the work of years for children to learn to spell; and after all, the business is rarely accomplished. A few men, who are bred to some business that requires constant exercise in writing, finally learn to spell most words without hesitation; but most people remain, all their lives, imperfect masters of spelling, and liable to make mistakes, whenever they take up a pen to write a short note. Nay, many people, even of education and fashion, never attempt to write a letter, without frequently consulting a dictionary.—Noah Webster1

The primary nonmedical/nonscientific dictionary used at JAMA and the Archives Journals is Merriam-Webster’s Collegiate Dictionary, and the medical/scientific dictionary of record is Dorland’s Illustrated Medical Dictionary. In the list given below, we show the preferred spelling of frequently misspelled scientific and nonscientific words as indicated by Webster’s and Dorland’s.

Whereas Webster’s shows equal or secondary variants in the entry “head,” Dorland’s uses a single term for the entry head but lists cross-references for variant spellings at the end of the entry for the preferred term. But note that Webster’s also often includes variant spellings in its entries (eg, aesthetic and esthetic). These “equal variants” are indicated by or. If they are given in alphabetical order, “they occur with equal or nearly equal frequency.” If they are given out of alphabetical order, but still joined by or, the first is slightly more common than the second. If they are joined by also, the word given second “occurs appreciably less often” than the first and is considered a “secondary variant.”

The front matter of Webster’s also notes: “Other spelling variants may be flagged with var with some further brief explanation, for example, metre … chiefly Brit var of meter.” Exception: Variant spellings that appear in direct, written (eg, published) quotations should not be changed to US variants.

To maintain consistency within their journals, the editors of JAMA and the Archives Journals prefer the first spelling of the entry of any given word.

Right and Almost Right

acknowledgment (equal variant, out of alphabetical order: acknowledgement)

aesthetic (secondary variant: esthetic)

breastfeeding (Webster’s: breast-feeding)

cutoff (as noun or adjective)

cut off (as verb)

distention (as given in Dorland’s; equal variant in Webster’s: distension)

judgment (equal variant, out of alphabetical order: judgement)

phosphorus (as noun)

phosphorous (as adjective)

sulfur (secondary variant: sulphur)

supersede (secondary variant: supercede)

Just Plain Wrong

accommodate (not accomodate)

ancillary (not ancilary)

arrhythmia (not arhythmia)

brussels sprouts (not brussel sprouts)

cholecystectomy (not cholecysectomy)

consensus (not concensus)

cribriform (not cribiform)

desiccate (not dessicate)

diphtheria (not diptheria)

dyspnea (not dysnea)

embarrass (not embarass)

erythematosus (not erythematosis)

Escherichia (not Echerichia)

fluorescent (not florescent)

fluorouracil (not flourouracil)

Haemophilus (not Hemophilus)

harass (not harrass)

hematopoietic (not hematopoetic)

Legionella pneumophila (not Legionella pneumophilia)

levothyroxine (not levothyroxin)

millennium (not millenium)

minuscule (not miniscule)

Neisseria gonorrhoeae (not Neisseria gonorrhea)

ophthalmology (not opthalmology)

Papanicolaou (not Papanicolou)

pertussis (not pertussus)

pruritus (not pruritis)

sagittal (not saggital)

sinusitis (not sinusitus)

sphygmomanometer (not sphygomamometer)

sulfide (not sulphide)

syphilis (not syphillis)

unwieldy (not unwieldly)

Now, this is nice and neat. But what if the 2 principal dictionaries (medical and nonmedical) differ on the preferred spelling of a word? Which to follow? We make such decisions on a case-by-case basis. For example, anti-inflammatory in Webster’s was chosen instead of antiinflammatory in Dorland’s because the former was considered to be expressed more clearly with a hyphen between the 2 i’s. Similarly, workup (as a noun, meaning a thorough evaluation to arrive at a diagnosis) was chosen over work-up. (But: Use work up as a verb!)

Spacing and punctuation (to hyphenate or not to hyphenate) add further questions of variation. These too are decided on a case-by-case basis. Below is a small sample of some of these decisions.

cost-effective, cost-effectiveness (not cost effective, cost effectiveness)

end point (not endpoint)

health care (not healthcare)

policy maker (not policymaker)

under way (not underway)

A final word to the wise: Until spell-checkers include a read-my-mind function, do not rely on them for solving spelling problems!—Roxanne K. Young, ELS

1. Webster N. An essay on the necessity, advantages, and practicality of reforming the mode of spelling and of rendering the orthography of words correspondent to pronunciation. In: Dissertations on the English Language: With Notes, Historical and Critical, to Which Is Added, by Way of Appendix, an Essay on a Reformed Mode of Spelling, With Dr. Franklin’s Arguments on That Subject. Boston, MA: 1789.

June 27, 2012

Questions From Users of the Manual

Filed under: frequently asked questions — amastyleinsider @ 1:38 pm
Tags: , , ,

Q: We do not find anything in the manual on how to treat “24/7.” Would you recommend spelling it out?

A: You are right. We don’t address this. But Webster’s 11th does. Both “24-7” and “24/7” are offered as equal variants. I think the latter is more common and would prefer that, without spelling it out.

Q: I understand that human genes are set all caps and italic, with the protein products set all caps and roman. But what to do with proto-oncogenes? Do the examples in section 15.6.2 indicate that, if the c- prefix is used, the lowercase (retroviral) form of the 3-letter oncogene is always used, regardless of whether we’re dealing with humans or mice? I am often presented with c-KIT, c-Kit, and c-kit in one document and would appreciate a clear explanation.

A: For oncogenes, it would always be c-kit and then, based on page 633 of the style manual, KIT for the human gene homologue and Kit for the mouse gene homologue.

Q: To follow your reference style, if “et al” is used, is a period used after “al”? And should the reference number be set as a superscript?

A: To answer your second question first, yes, the reference number should be set as a superscript if you follow the style set forth in the AMA Manual. And unless “et al” ends the sentence, “al” would not be followed by a period (even though it is an abbreviation).—Cheryl Iverson, MA

June 18, 2012

Bucking the “Trend” and Approaching “Approaching Significance”

Filed under: statistics — amastyleinsider @ 1:00 pm
Tags: , ,

I believe we are on an irreversible trend toward more freedom and democracy – but that could change.

—Dan Quayle

In general usage, the concept of trend implies movement. Not only is this implied in its definitions, but the word can be traced to its Middle High German root of trendel, which is a disk or spinning top.1

In scientific writing, when is a trend not a trend? When it is not referring to comparisons of findings across an ordered series of categories or across periods of time. However, this and related terms are often misused in manuscripts and articles.

Most studies are constructed as hypothesis testing. Because an individual study only provides a point estimate of the truth, the researchers must determine before conducting the study an acceptable cutoff for the probability that a finding of an association is due to chance (the α value, most commonly but not universally set at .05 in clinical studies). This creates a dichotomous situation in interpreting the result: the study either does or does not meet this criterion. If the criterion is met, the finding is described as “statistically significant”; if it is not met, the finding is described as “not statistically significant.”

There are many limitations to this approach. Where the α level is set is arbitrary; therefore, in general all findings should be expressed as the study’s point estimate and confidence interval, rather than just the study estimate and the P value. Despite the limitations, if a researcher designs a study on the basis of hypothesis testing, it is not appropriate to change the rules after the results are available, and the results should be interpreted accordingly. The entire study design (such as calculation of the sample size and study power – the ability of a study to detect an actual difference or effect, if one truly exists) is dependent on setting the rules in advance and adhering to them.

If a study does not meet the significance criterion (for example, if the α level was set as < .05, and the P value for the finding was .08), authors sometimes describe the findings as “trending toward significance,” “having a trend toward significance,” “approaching significance,” “borderline significant,” or “nearly significant.” None of these terms is correct. Results do not trend toward significant—they either are or are not statistically significant based on the prespecified study assumptions. Similarly, the results do not include any movement and so cannot “approach” significance; and because of the dichotomous definition, “nearly significant” is no more meaningful than “nearly pregnant.”

When a finding does not meet statistical significance, there are generally 2 possible explanations: (1) There is no real association. (2) There might be an association, but the study was underpowered to detect it, usually because there were not enough participants or outcome events. A finding that does not meet statistical significance may still be clinically important and warrant further consideration.

However, when authors use terms such as trend or approaching significance, they are hedging the interpretation. In effect, they are treating the findings as if the association were statistically significant, or as if it might have been if the study had just gone a little differently. This is not justified. (Lang and Secic2 make the fascinating observation that “Curiously, P values never seem to ‘trend’ away from significance.”)

A proper use of the term trend refers to the results of one of the specific statistical tests for trend, the purpose of which is to estimate the likelihood that differences across 3 or more groups move (increase or decrease) in a meaningful direction more than would be expected by chance. For example, if a population of persons is ranked by evenly divided quintiles based on serum cholesterol level (from lowest to highest), and the risk of subsequent myocardial infarction is measured in each group, the researcher may want to determine whether risk increases in a linear way across the groups. Statistical tests that might be used for analyzing trends include the χ2 test for trend and the Cochran-Armitage test.

Similarly, a researcher may want to test for a directional movement in the values of data over time, such as a month-to-month decrease in prescriptions of a medication following publication of an article describing major adverse effects. A number of analytic approaches can be used for this, including time series and other regression models.

Instead of using these terms, the options are:

1. Delete the reported finding if it is not clinically important or a primary outcome. OR

2. Report the finding with its P value. Describe the result as “not statistically significant,” or “a statistically nonsignificant reduction/increase,” and provide the confidence interval so that the reader can judge whether insufficient power is a likely reason for the lack of statistical significance.

If the finding is considered clinically important, authors should discuss why they believe the results did not achieve statistical significance and provide support for this argument (for example, explaining how the study was underpowered). However, this type of discussion is an interpretation of the finding and should take place in the “Discussion” (or “Comment”) section, not in the “Results” section.

Bottom line:

1. The term trend should only be used when reporting the results of statistical tests for trend.

2. Other uses of trend or approaching significance should be removed and replaced with a simple statement of the findings and the phrase not statistically significant (or the equivalent). Confidence intervals, along with point estimates, should be provided whenever possible.—Robert M. Golub, MD

1. Mish FC, ed in chief. Merriam-Webster’s Collegiate Dictionary. 11th ed. Springfield, MA: Merriam-Webster Inc; 2003.

2. Lang TA, Secic M. How to Report Statistics in Medicine: Annotated Guidelines for Authors, Editors, and Publishers. 2nd ed. Philadelphia, PA: American College of Physicans; 2006:56, 58.

 

June 12, 2012

Apt, Liable, Likely

Filed under: usage — amastyleinsider @ 1:42 pm
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Although these words are sometimes used interchangeably, particularly in infinitive constructions (apt to fall, liable to fall, likely to fall),1,2 using them interchangeably obscures subtle yet important distinctions between them.

Of the three, it seems that apt is the one most often used in its proper sense—perhaps because, unlike liable and likely, which both stress a potential consequence and thus are often confused, apt simply stresses inherent tendency (eg, “Elmer is apt to be a bit unsteady on his feet”).3 Also, whereas liable and likely refer to consequences and thus most commonly to conditions that will become manifest in the future, apt usually refers to conditions manifest in the past or present.1 In addition, some authorities hold that apt is perhaps most commonly used when referring to persons, although it can refer to nonhuman or inanimate subjects as well.1

So far so good—but, as alluded to above, tossing liable and likely into the mix can muddy the waters a bit. Both stress degrees of potential, but liable is the weaker of the two, used to stress possibility (eg, “Because Elmer is apt to be a bit unsteady on his feet, he’s liable to fall”) rather than outright probability.1 It has sometimes been held that liable should be used only when the subject of the sentence would face unpleasant consequences from the action expressed by the verb (“Because Elmer is apt to be a bit unsteady on his feet, he’s liable to fall and break a hip”).2 Certainly, of the three words under discussion, liable is the one most often taken as indicating that a consequence might be unpleasant or disadvantageous.3

Compared with liable, likely is a stronger term, used to stress probability (eg, “Because Elmer is apt to be a bit unsteady on his feet, he’ll likely fall if the steps are icy”) rather than mere possibility.1 However, unlike apt, likely used alone stresses no particular tendency in the subject that would enhance the probability of the outcome; moreover, unlike liable, it need not suggest the potential for an unpleasant consequence (eg, “Although Elmer is apt to be a bit unsteady on his feet, he’ll likely not fall, even if the steps are icy”).2

The bottom line:

● Looking for a word that stresses inherent tendency, particularly in a person? Use apt.

● Looking for a word that stresses possibility (as opposed to probability)—especially the possibility of some unpleasant consequence? Use liable.

● Looking for a word that stresses probability (as opposed to possibility), whether the perceived consequences be good or ill? Use likely.—Phil Sefton, ELS

1. Apt, liable, likely. Merriam-Webster’s Dictionary of Synonyms. Springfield, MA; Merriam-Webster Inc; 1984:56.

2. Liable. TheFreeDictionary.com website.
http://www.thefreedictionary.com/p/liable
. Accessed March 8, 2012.

3. Apt, liable, likely. In: Bernstein TM. The Careful Writer: A Modern Guide to English Usage. New York, NY: Athaneum; 1985:48.

June 6, 2012

Acronym Morph: What’s an Editor to Do?

Filed under: acronyms — amastyleinsider @ 1:23 pm
Tags: ,

Sometimes we see things out of the corner of our eye. Then we think, “Did I really see that?” Lately, I’ve had that experience with certain acronyms morphing from all capital letters (eg, UNESCO) to initial capital letters (Unesco).

When acronyms drop their periods, I take it in without a second thought—it looks cleaner to me, someone used to the omission of periods in most acronyms from years of editing using the AMA Manual of Style. But this move from all-caps to only an initial cap jarred me, once I stopped and looked it in the eye. I was puzzled, too, by the pattern (or lack of one) behind this shift.

A little investigation seemed in order. The AMA Manual of Style distinguishes between acronyms and initialisms1 and indicates that periods are usually not used with them. But there is no mention of an all-cap or initial-cap style or preference. The Chicago Manual of Style2 notes that “Usage rather than logic determines whether abbreviations other than those standing for proper names are given in upper- or lowercase letters. Noun forms are usually uppercase (HIV, VP), adverbial forms lowercase (rpm, mpg). Note also that acronyms, especially those of five or more letters, tend to become lowercase with frequent use (NAFTA/Nafta, WASP/Wasp).” Special mention of this morph is made in discussing associations and the like: “Whether acronyms or initialisms…, such abbreviations appear in full capitals and without periods. Acronyms of five letters or more may be spelled with only an initial capital….” Chicago cites ERISA/Erisa (Employment Retirement Income Security Act) as an example.

Now we’re getting somewhere. Maybe there isn’t logic but maybe there is a pattern. Editors like both.

The Associated Press Stylebook3 advises, with regard to acronyms, “Use only an initial cap and then lowercase for acronyms of more than six letters, unless listed otherwise in this Stylebook or Webster’s New World College Dictionary.” So, it does seem to be related to length. How long is long enough to trigger this style change—5 letters? 6 letters?

This set me to thinking about things that began as acronyms and then morphed even further than becoming “proper nouns,” with an initial cap, to becoming “regular” words, all lowercase, as if they had never worn the guise of an acronym at all. The first such word that came to my mind was posh because I loved knowing that this word began as P.O.S.H. to stand for “port out, starboard home,” the location of the most expensive berths on luxury liners. However, I was chagrined to read in The Phrase Finder4 that this story was probably “dreamed up retrospectively to match an existing meaning.” It therefore is not an acronym but a backronym (a “reverse acronym,” a word or phrase constructed after the fact to make an existing word or words into an acronym”5).

What are other such words that we use as if they were fresh words but that began life as acronyms? I knew about snafu (“situation normal, all f—ed up”), which is so often used that most people don’t even know it had an earlier existence. Another one that, for some reason, I think most people do realize used to stand for something is scuba (“self-contained underwater breathing apparatus”). One that I see every day in reading medical journals that I hadn’t known started as an acronym is laser (“light amplification by stimulated emission of radiation”). Wonderful. Finding out the history of each of these acronyms is like opening a small treasure chest. Then there’s a host of others that all joined the language in the 1980s: yuppie (“young urban professional” or “young upwardly mobile professional”), buppie (“black urban professional”), guppie (“gay urban professional”), dink (“double income, no kids”). This is fun.

Some acronyms come from other languages: flak (from German: Fliegerabwehrkanonen, from Flieger flyer + Abwehr defense + Kanonen cannons).6 Some company names began as acronyms: Qantas began as QANTAS (Queensland and Northern Territory Aerial Services).

Getting back to the yen for logic and a pattern, with words there is a pattern that editors often chart, like physicians charting a patient’s temperature in a hospital record…watching to see when the temperature is right for them to jump in. Here the pattern is to begin with 2 separate words, then link them with a hyphen, then join them completely.

breast feeding→breast-feeding→breastfeeding

With acronyms it seems to be

U.N.E.S.C.O.→UNESCO→Unesco

With, sometimes, a brief detour to unesco.

For those of us who care about these details, we each need to decide (with words, with capital letters) when—watching the temperature—it’s time to jump in. For medical journals, vis-à-vis this acronym morph, we are going to continue to monitor the temperature before deciding to jump in for a swim.

Acronyms, backronyms. Words take us on a wonderful journey. Sometimes they are a journey in themselves.—Cheryl Iverson, MA

1. Iverson C, Flanagin A, Christiansen S, et al. AMA Manual of Style: A Guide for Authors and Editors. 10th ed. New York, NY: Oxford University Press; 2007:441-442.

2. The Chicago Manual of Style. 15th ed. Chicago, IL: University of Chicago Press; 2003:559.

3. Christian D, Jacobsen S, Minthorn D, eds. The Associated Press Stylebook and Briefing on Media Law. Philadelphia, PA: Perseus Basic Books; 2009:2.

4. POSH. The Phrase Finder. http://www.phrases.org.uk/meanings. Accessed June 4, 2012.

5. Backronym. Wikipedia. http://en.wikipedia.org/wiki/Backronym. Accessed June 4, 2012.

6. Mish FC, ed in chief. Merriam-Webster’s Collegiate Dictionary. 11th ed. Springfield, MA: Merriam-Webster Inc; 2003:475.

May 31, 2012

AMA Style Insider Responds

Filed under: meta-blog,quizzes — amastyleinsider @ 1:03 pm
Tags: , ,

We love comments. (From real people, that is. Spambots, you can stop any time.)

We love comments like, “Great blog!” We even love comments like, “You are wrong about every single thing related to medical editing, your mother was a hamster and your father smelled of elderberries, goodbye.” Both of those require simple responses—I like “Thanks!” for both, to be honest. For the latter, I would be charitable and not even comment on the comma usage.

Every once in a while someone will leave a critical comment that requires a longer response, and sometimes the consultation of outside experts. That was the case with this Quiz Bowl post on units of measure. A reader wrote:

A big problem with the AMA manual is a lack of consideration significant figures. The conversion factor listed in the online “SI Conversion Tables” section from feet to centimeters is 30. That’s wrong. Let’s say I try to convert my height (6.0000 feet) into centimeters. The “.0000″ means that my measurement has 5 significant figures. Significant figures are important in science and health care.

I start with the only unit conversion between customary and metric that matters: 2.54 centimeters equals exactly 1 inch. This is the only conversion that matters because it is a definition. There are infinite significant figures.

Here is what happens if I use the “SI Conversion Tables” section of the AMA manual of style:

6.0000 feet * 30 = 180 centimeters

Here is what happens if I use math and pay attention to significant figures:

6.0000 feet * (12 inches/1 foot) * (2.54 cm)/(1 inch) = 182.88

Where did those extra 2.88 centimeters come from? They came from a a conversion factor that was wrong.

For the same reason as above, your answer to the first problem is wrong.

7.2 inches^2 * (((2.54 cm)^2)/((1 in)^2)) = 46.45 (assuming 4 significant figures, to demonstrate the inaccuracy of your conversion factor)

This isn’t just an academic exercise. A text for editors shouldn’t have errors like this.

We made “hmmm” noises for a while but finally drafted a response to post here, since a shameful amount of time has gone by since the original comment.

You raise an important point about the significance of significant digits. The Manual addresses this in section 20.8.1 and, in chapter 18, where the conversion table is embedded that shows conversions for inches to centimeters, there is a caution that results should not be reported beyond the appropriate level of precision.  It is critical to ascertain the precision needed for the clinical context of the conversion. If you only need significance to 1 place beyond the decimal (7.2 inches) to accurately describe tumor size, then the 2 significant digits of the result should be fine and the clinical difference between 46.8 and 46.5 is probably not important.

It’s entirely possible that the final 3 words of that paragraph are the equivalent of a thrown gauntlet to someone out there—if so, we’re willing to continue the conversation in the comments to this post.—Brenda Gregoline, ELS

May 22, 2012

Quiz Bowl: Mathematical Composition

Filed under: quizzes — amastyleinsider @ 1:43 pm
Tags: ,

Have you ever seen that T-shirt? The one that reads, “I’m an English major; you do the math.” I have to confess that was my philosophy when I was first hired as a copy editor. Even today, if I didn’t have a calculator, a copy of Mathematics Into Type, and a bottle of ibuprofen, I wouldn’t even attempt to edit equations. So, to ease the furrowed brows of all you English-major copy editors who are forced to face the math, this month’s AMA Manual of Style quiz is on mathematical composition. But let’s ease into this. Try to example below first and then attempt the full quiz at
http://www.amamanualofstyle.com
.

Which of the following equations correctly uses brackets, parentheses, and braces?

{4 + (−1[2 −1])}2
[4 + {−1(2 −1)}]2
(4 + [−1{2 −1}])2
{4 + [−1(2 −1)]}2

And the answer is (use your mouse to highlight the text box):

{4 + [−1(2 −1)]}2

Parentheses should be used to set off simple expressions. If additional fences are needed for clarity, parenthetical expressions should be set off in brackets, and bracketed expressions should be set off with braces. Note that parentheses are thus always the innermost fences. All fences should be present in matched pairs.

Well, did you survive? If so, you can now turn in those English major T-shirts for ones that read, “I’m a copy editor; I’ll do the math.”—Laura King, MA, ELS

May 16, 2012

Questions From Users of the Manual

Filed under: frequently asked questions — amastyleinsider @ 11:31 am
Tags: , , ,

Q: Are arabic numerals used for measures of time:  years, months, weeks?

A: I’m assuming you are asking about using numerals vs words.  The short answer is yes; we use arabic numerals for years, months, and weeks.  But if you should also be curious about the use of  arabic vs roman numerals, see section 19.7.5; and for specific nomenclature conventions, see chapter 15.

Q: Do you have a style for citing tweets?

A: Our blog addressed this query on August 23, 2011.  Please take a look at this archived entry.

Q: How do you handle the word continued when it’s used after a title of a table that runs over onto a second page?

A: We don’t address this specifically in the manual, but if you look at one of the longest tables in the manual (the big SI conversion table in chapter 18) you will see that we used “(cont).”  Since then, however, in our own publications, we have switched to spelling the word out (“continued”) to better serve international readers (who may not recognize cont as a “familiar” abbreviation).

Q: If there is a “compound” acronym/abbreviation defined first in a manuscript (eg, chronic myeloid leukemia in chronic phase [CML-CP]) and, later in the same manuscript, just CML is required, should CML be redefined or did the first definition cover it?

A: Good question.  AMA Manual of Style authors agree that there is no need to expand a component of an already introduced compound abbreviation.  For instance, after introducing ST-elevation myocardial infarction (STEMI), there is no need to expand MI.  In your example, there is no need to treat CML as a new abbreviation.—Cheryl Iverson, MA

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