Despite two decades of consistent warnings from public health authorities that pregnant women should not drink alcoholic beverages, the vast majority of widely used medical textbooks fail to communicate this message unequivocally, a new study reveals. Many texts, including those published recently, contradict these public health guidelines, researchers report in the August issue of the American Journal of Preventive Medicine.
"Medical texts are used for training as well as for reference," observes senior author Mary D. Nettleman, M.D., M.S., from Virginia Commonwealth University. "In turn, training influences physician behavior. Therefore, it is concerning that many distinguished texts fail to provide clear and consistent recommendations about drinking in pregnancy."
Previous research has shown that alcohol consumption by pregnant women is one of the leading preventable causes of birth defects and developmental disabilities, Nettleman explains. Yet when she and her colleague, Karen Q. Loop, reviewed 81 clinical obstetric texts in current use, they found that only 14 contain a consistent recommendation that pregnant women should not drink alcohol. Among the 29 texts published since 1991, only seven consistently recommend abstinence.
More than half of the 81 texts, Nettleman and Loop found, contain at least one statement condoning drinking. Although none of the 29 texts published since 1991 contains a consistent message that drinking is permissible during pregnancy, 15 carry a mixed message, recommending abstinence in one place and stating elsewhere that some level of drinking is permissible.
"Although tolerance toward drinking during pregnancy may be expected in older texts, such tolerance in recent texts was very disturbing," Nettleman says.
Mixed messages, Nettleman added, "are not appropriate because they leave the reader with the impression that abstinence is the official line but a foolish rule made to be broken."
Statements that condone "minimal," "occasional" or "moderate" drinking without defining what these terms mean — found in 22 of the 81 texts — also raise concerns for the researchers. "Vague terms such as [these] are detrimental, not only because they provide no concrete guidance, but because they may have vastly different interpretations according to the social norms in the patients (and perhaps physicians) environments," Nettleman explains.
Some texts, the researchers found, skirt the issue by offering no guidance at all. Nineteen of the 81 texts discuss the topic of alcohol consumption during pregnancy without providing a recommendation, and five books dont address the topic at all.
Nettleman and Loop suspect that the disconnect between what authorities and textbooks recommend stems, at least in part, from the fact that no safe level of drinking during pregnancy has been established. "[M]any textbooks, even recent ones, seem to have interpreted the absence of a safe level to mean that lower levels of drinking are safe and may be permitted," Nettleman observes.
Joe Kuttenkuler | EurekAlert
Finding new clues to brain cancer treatment
21.02.2020 | Case Western Reserve University
UIC researchers find unique organ-specific signature profiles for blood vessel cells
18.02.2020 | University of Illinois at Chicago
The operational speed of semiconductors in various electronic and optoelectronic devices is limited to several gigahertz (a billion oscillations per second). This constrains the upper limit of the operational speed of computing. Now researchers from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg, Germany, and the Indian Institute of Technology in Bombay have explained how these processes can be sped up through the use of light waves and defected solid materials.
Light waves perform several hundred trillion oscillations per second. Hence, it is natural to envision employing light oscillations to drive the electronic...
Most natural and artificial surfaces are rough: metals and even glasses that appear smooth to the naked eye can look like jagged mountain ranges under the microscope. There is currently no uniform theory about the origin of this roughness despite it being observed on all scales, from the atomic to the tectonic. Scientists suspect that the rough surface is formed by irreversible plastic deformation that occurs in many processes of mechanical machining of components such as milling.
Prof. Dr. Lars Pastewka from the Simulation group at the Department of Microsystems Engineering at the University of Freiburg and his team have simulated such...
Investigation of the temperature dependence of the skyrmion Hall effect reveals further insights into possible new data storage devices
The joint research project of Johannes Gutenberg University Mainz (JGU) and the Massachusetts Institute of Technology (MIT) that had previously demonstrated...
Researchers at Chalmers University of Technology, Sweden, recently completed a 5-year research project looking at how to make fibre optic communications systems more energy efficient. Among their proposals are smart, error-correcting data chip circuits, which they refined to be 10 times less energy consumptive. The project has yielded several scientific articles, in publications including Nature Communications.
Streaming films and music, scrolling through social media, and using cloud-based storage services are everyday activities now.
After helping develop a new approach for organic synthesis -- carbon-hydrogen functionalization -- scientists at Emory University are now showing how this approach may apply to drug discovery. Nature Catalysis published their most recent work -- a streamlined process for making a three-dimensional scaffold of keen interest to the pharmaceutical industry.
"Our tools open up whole new chemical space for potential drug targets," says Huw Davies, Emory professor of organic chemistry and senior author of the paper.
12.02.2020 | Event News
16.01.2020 | Event News
15.01.2020 | Event News
21.02.2020 | Medical Engineering
21.02.2020 | Health and Medicine
21.02.2020 | Physics and Astronomy