Medical students and residents appreciate ebooks' convenience, but prefer the print book reading experience.

BACKGROUND: Increasingly, libraries buy medical monographs as ebooks, but that may not be what medical students and residents want. Some studies have shown that they prefer print books for some types of reading. On the other hand, for participants in distributed medical programs, ebooks are more accessible. OBJECTIVES: To determine whether medical students and residents at an institution with a distributed medical education program prefer medical ebooks or print books. METHODS: In February 2019, 844 medical students and residents were invited to complete an online questionnaire on their format preferences. RESULTS: Two hundred thirty-two students and residents responded. Most preferred electronic format for reading a few pages, but print for entire books. Respondents preferred ebooks because they were immediately available, searchable and could be used on the go, and print books because they strained users' eyes less, facilitated absorption of the text and could be held in users' hands. The location of respondents and year of study had little effect on responses. DISCUSSION: Libraries should consider buying quick reference and large, heavy textbooks as ebooks and pocket-sized or shorter, single-topic titles, in print format. CONCLUSIONS: Libraries have a responsibility to make both print and ebooks available to their users.

A comparative study of medical ebook and print book prices.

BACKGROUND: Although most medical libraries buy ebooks, there has been little discussion of the comparative costs of medical ebooks and print books. OBJECTIVES: To determine whether individually purchased medical ebooks cost more or less, on average, than the same titles in print format and, if so, to calculate the price differential. METHODS: The author searched the platform of monograph vendor YBP for the 1095 titles in the 'Clinical Medicine' category of Doody's Core Titles 2018 edition. For each title, the print price and the lowest ebook price were noted; the ratio of ebook price to print book price for each title was then calculated. RESULTS: On average, ebooks cost 2.20 times more than their print equivalents, though the size of the price differential varied greatly with the publisher. For some publishers, ebooks cost nearly the same amount as print books, while for others, ebooks cost three or even four times as much as the print. DISCUSSION: The greater price of some ebooks may make them unaffordable for libraries or mean that those titles cannot be purchased as ebooks even when that format would be preferred. CONCLUSIONS: Buying ebooks, at least on a title-by-title basis, can be very costly for medical libraries.

The importance of leisure reading to health sciences students: results of a survey.

OBJECTIVE: To determine what value health sciences students place on leisure reading, whether they prefer to read online or in print, what the principal barriers are to their reading and whether they wish to have a leisure reading collection at their health sciences library. METHODS: In October 2010, a link to a survey was sent to all 1800 students in health sciences professional programmes at the author's institution. RESULTS: Two hundred and thirteen students (11.8%) responded. Most felt that leisure reading had helped in their development as health professionals and increased their empathy. They listed many benefits of reading, such as improved understanding of minority groups, reduced stress, and improved thinking and communication skills. The majority preferred to read books and magazines in print, while the largest number preferred reading newspapers in print as well. Lack of time, fatigue and the expense of purchasing reading materials were the greatest barriers to reading. A majority of students were in favour of having a leisure reading collection set up at their library. CONCLUSIONS: Leisure reading was valued by the respondents, who felt it provided personal and professional benefits. However, many indicated that circumstances made it difficult to participate in leisure reading.

Leisure reading collections in academic health sciences and science libraries: results of visits to seven libraries.

OBJECTIVE: To visit leisure reading collections in academic science and health sciences libraries to determine how they function and what role they play in their libraries. METHODS: The author visited seven libraries with leisure reading collections and carried out a semistructured interview with those responsible either for selection of materials or for the establishment of the collection. RESULTS: These collections contained a variety of materials, with some libraries focusing on health-science-related materials and others on providing recreational reading. The size of the collections also varied, from 186 to 9700 books, with corresponding differences in budget size. All collections were housed apart, with the same loan period as the regular collection. No collections contained electronic materials. Although there was little comparable statistical data on usage, at the six libraries at which active selection was occurring, librarians and library staff felt that the collection was well used and felt that it provided library users with benefits such as stress relief and relaxation and exposure to other perspectives. CONCLUSION: Librarians and library staff at the libraries that undertook active selection felt that their leisure reading collection was worthwhile. It would be interesting for future work to focus on the user experience of such collections.

Oligohydramnios, small for gestational age and pregnancy outcomes: an analysis using precise measures.

BACKGROUND/AIM: Marginal or decreased amniotic fluid volume by ultrasound estimate and fetal growth restriction have been shown to be significantly associated with perinatal mortality. The association of fetal growth restriction and precisely measured amniotic fluid volume is unknown. The purpose of this study was to determine if adverse pregnancy outcomes are more likely in pregnancies complicated by small-for-gestational-age (SGA) neonates and dye-determined oligohydramnios. METHODS: Admissions to neonatal intensive care unit (NICU) and other pregnancy outcomes were analyzed in parturients with known amniotic fluid volume, calculated by the dye-dilution technique. The pregnancy outcomes of those with oligohydramnios and SGA were compared with pregnancies complicated by just one of these two conditions and pregnancies with normal fluid and birth weight. RESULTS: Of 202 patients, oligohydramnios was present in 26% (53), SGA in 15% (30) and both conditions in (5%) (11). Logistic regression, controlling for gestational age, demonstrated that the combination of oligohydramnios and SGA, compared to normal growth and fluid strongly predicted NICU admission (OR 11.1; 95% CI 2.1-59.2) but not other complications. (OR 4.8; 95% CI 0.3-62.9). CONCLUSIONS: SGA with oligohydramnios significantly increases the likelihood of a NICU admission, but not other morbidity.

Association of birth weight with polymorphisms in the IGF2, H19, and IGF2R genes.

There is a substantial genetic component for birth weight variation. We tested 18 single nucleotide polymorphisms (SNPs) in the IGF2, H19, and IGF2R genes for associations with birth weight variation in 342 mother-newborn pairs (birth weight 2.1-4.7 kg at term) and 527 parent-newborn trios (birth weight 2.1-5.1 kg) across three localities. SNPs in the IGF2R (rs8191754; maternal genotype), IGF2 (rs3741205; newborn genotype), and 5' region of the H19 (rs2067051, rs2251375, and rs4929984) genes were associated with birth weight. Detailed analyses to distinguish direct maternal, direct newborn, and parent of origin effects for the most strongly associated H19 SNP (rs4929984) determined that the association of maternal genotype with newborn birth weight was due to parent of origin effects not direct maternal effects. That SNP is located near the CTCF binding sites that influence expression of the maternally imprinted IGF2 and paternally imprinted H19 locus, and there are statistically significant and independent opposite effects of the same rs4929984 allele, depending on the parent from which it was inherited.

Air travel and pregnancy outcomes: a review of pregnancy regulations and outcomes for passengers, flight attendants, and aviators.

To review flight regulations and gestational complications associated with air travel in pregnant passengers, flight attendants, and aviators. A literature search was undertaken on the relationship of air travel and spontaneous pregnancy losses, intrauterine fetal demise (IUFD), birth weight<10th percentile, preterm delivery, and neonatal intensive care unit admissions. The literature search identified 128 abstracts, of which 9 evaluated air travel and pregnancy outcomes. The risk of a pregnancy loss (spontaneous abortion or IUFD) was greater in flight attendants than controls (odds ratio [OR]: 1.62, 95% confidence interval [CI]: 1.29, 2.04). The risk of preterm birth<37 weeks was greater in passengers than controls (OR: 1.44, 95% CI: 1.07, 1.93). However, the risk of preeclampsia (OR: 0.86, 95% CI: 0.58, 1.27), neonatal intensive care unit admissions (OR: 1.19, 95% CI: 0.78, 1.82), or birth weight<10th percentile (OR: 1.25, 95% CI: 0.62, 2.48) was not increased. Flight attendants did not have an increased risk of preterm birth compared to controls (OR: 1.37, 95% CI: 0.85, 2.22) or delivering infants with birth weight<10th percentile (OR: 1.57, 95% CI: 0.68, 3.74). The risks of spontaneous abortions and other adverse pregnancy outcomes have been poorly studied in a limited number of investigations. An analysis of the available information suggests a greater risk of spontaneous abortions or IUFD in flight attendants, and a greater risk of preterm birth<37 weeks in air passengers. However, the literature on which these findings are based is generally not of high methodologic quality.

An introductory guide to drug reference sources.

A huge number of drug reference sources exist. For the librarian new to the drug information field, choosing the appropriate source to answer a reference question can be difficult. This paper presents some common drug reference questions and some of the American, British, and Canadian tools best suited to answering them.

Subject knowledge in the health sciences library: an online survey of Canadian academic health sciences librarians.

OBJECTIVES: This study investigated whether Canadian academic health sciences librarians found knowledge of the health sciences to be important and, if so, how they acquired and maintained this knowledge. METHODS: Data were gathered using a Web-based questionnaire made available to Canadian academic health sciences librarians. RESULTS: Respondents recognized the need for subject knowledge: 93.3% of respondents indicated that subject knowledge was "very important" or "somewhat important" to doing their job. However, few respondents felt that holding a degree in the health sciences was necessary. Respondents reported devoting on average more than 6 hours per week to continuing education through various means. Reading or browsing health sciences journals, visiting Websites, studying independently, and participating in professional associations were identified by the largest number of participants as the best ways to become and stay informed. CONCLUSIONS: Although more research needs to be done with a larger sample, subject knowledge continues to be important to Canadian academic health sciences librarians. Continuing education, rather than formal degree studies, is the method of choice for obtaining and maintaining this knowledge.