Data from the Centers for Disease Control and Prevention’s National Ambulatory Medical Center Survey reveal benzodiazepine prescriptions grew by 12.5% per year between 2002 and 2009. Data from the National Health and Nutrition Examination Survey suggest that prescriptions for sleep aids (sedatives and hypnotics) tripled between 1998 and 2006. Four percent of U.S. adults age 20 years or older and 7% of adults age 80 years or older report using a prescription sleep aid in the past month.
Aside from the addictive potential and their limited long-term effectiveness, they may be associated with an increased risk of death.
Dr. Scott Weich and his colleagues at University of Warwick, Coventry, England, analyzed data from a retrospective matched cohort study involving 34,727 patients aged at least 16 years who received prescriptions for anxiolytics or hypnotics and 69,418 patients who did not (BMJ 2014;348:g1996). To reduce the likelihood that patients received a prescription that they did not fill, only patients receiving at least two prescriptions were included. The average follow-up period was 7.6 years. The most commonly prescribed drugs were diazepam (48%), temazepam (35%), zopiclone (34%), and zolpidem (8%).
Significantly higher ratios for mortality were observed with the use of these drugs. Adjusting for potential confounders, the hazard ratio for mortality during the whole follow-up period was significantly elevated for the group receiving any sedative or hypnotic in the first year of recruitment (hazard ratio, 3.32; 95% confidence interval: 3.19-3.45).
Dose responses were observed for study drugs. For example, the HR for patients receiving more than 90 doses during the first year was 4.51 (95% CI: 4.22-4.82). Patients who did not receive study drugs beyond 1 year were less likely to die than those who continued to take them. The authors point out that these data translate into four excess deaths linked to use of these drugs per 100 people over 7.6 years after the initial prescription.
The biggest challenge will be to figure out how best to incorporate this information into our counseling of patients without sounding like we are "fear-mongering." Fear-mongering doesn’t work – it just makes our patients more anxious, when what we really need to do is calm them down.
Cognitive-behavioral therapy works for insomnia, but patients report not having the time. I always start the discussion by telling patients to read the book "No More Sleepless Nights" and to start a sleep log. Amazing what we can learn from this. This as least gets the ball rolling.
Dr. Ebbert is professor of medicine, a general internist at the Mayo Clinic in Rochester, Minn., and a diplomate of the American Board of Addiction Medicine. The opinions expressed are those of the author. Dr. Ebbert does not receive royalties from the sale of "No More Sleepless Nights."