PMID- 21030794 OWN - NLM STAT- MEDLINE DCOM- 20110207 LR - 20220409 IS - 1349-9092 (Electronic) IS - 0917-5040 (Print) IS - 0917-5040 (Linking) VI - 21 IP - 1 DP - 2011 TI - Increased risk of hospitalization related to motor vehicle accidents among people taking zolpidem: a case-crossover study. PG - 37-43 AB - BACKGROUND: Several epidemiological and experimental studies have found a positive association between the risk of motor vehicle accidents (MVAs) and use of zopiclone and benzodiazepines. There is, however, little evidence of any risk of MVA attributable to the use of zolpidem 1 day before such accidents. We attempted to determine whether the use of zolpidem 1 day before is associated with an increased risk of an MVA. METHODS: Using a 1-million-person randomly sampled cohort from the Taiwan National Health Insurance reimbursement database, 12 929 subjects were identified as having been hospitalized between 1998 and 2004 due to an MVA. Using a case-crossover design, we selected the day before an MVA as the case period for each subject, and the 91st, 182nd, and 273rd days before the case period as 3 retrospective control periods. Conditional logistical regression models were constructed to calculate the odds ratio (OR) of having an MVA and the exposure of zolpidem 1 day before. We calculated doses of benzodiazepines, zopiclone, and zolpidem based on their defined daily dose. RESULTS: The adjusted OR for involvement in an MVA after taking 1 defined daily dose of zolpidem was 1.74 (95% confidence interval: 1.25-2.43). There were also positive effects for different washout periods and cumulative doses at 7, 14, 21, and 28 days before the occurrence of an MVA. CONCLUSIONS: Use of zolpidem 1 day before might be associated with an increased risk of MVA. Thus, precautionary warnings should be provided when prescribing zolpidem. FAU - Yang, Yao-Hsu AU - Yang YH AD - Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan. FAU - Lai, Jung-Nien AU - Lai JN FAU - Lee, Chang-Hsing AU - Lee CH FAU - Wang, Jung-Der AU - Wang JD FAU - Chen, Pau-Chung AU - Chen PC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101023 PL - Japan TA - J Epidemiol JT - Journal of epidemiology JID - 9607688 RN - 0 (Hypnotics and Sedatives) RN - 0 (Pyridines) RN - 7K383OQI23 (Zolpidem) SB - IM MH - Accidents, Traffic/*statistics & numerical data MH - Adolescent MH - Adult MH - Aged MH - Cross-Over Studies MH - Databases, Factual MH - Female MH - Hospitalization/*statistics & numerical data MH - Humans MH - Hypnotics and Sedatives/*adverse effects MH - Male MH - Middle Aged MH - Odds Ratio MH - Pyridines/*adverse effects MH - Risk MH - Taiwan/epidemiology MH - Wounds and Injuries/epidemiology/therapy MH - Young Adult MH - Zolpidem PMC - PMC3899515 EDAT- 2010/10/30 06:00 MHDA- 2011/02/08 06:00 PMCR- 2011/01/05 CRDT- 2010/10/30 06:00 PHST- 2010/10/30 06:00 [entrez] PHST- 2010/10/30 06:00 [pubmed] PHST- 2011/02/08 06:00 [medline] PHST- 2011/01/05 00:00 [pmc-release] AID - JST.JSTAGE/jea/JE20090195 [pii] AID - JE20090195 [pii] AID - 10.2188/jea.je20090195 [doi] PST - ppublish SO - J Epidemiol. 2011;21(1):37-43. doi: 10.2188/jea.je20090195. Epub 2010 Oct 23.