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Marijuana use and medically attended
injury events.
Braun BL, Tekawa IS, Gerberich SG, Sidney S
St. Mary's/Duluth Clinic Health System, Division of
Education and Research, MN, USA.
STUDY OBJECTIVE: This study evaluated the relation
between self-reported marijuana use and 3-year incidence
of injury.
METHODS: We conducted a retrospective cohort
study of adult Kaiser Permanente Medical Care Program
members who underwent multiphasic health examinations
between 1979 and 1986 (n=4,462). Injury-related
outpatient visits, hospitalizations, and fatalities
within 3 years of examination were determined.
RESULTS:
Outpatient injury events totaled 2,524; 1,611
participants (36%) had at least 1 injury-related
outpatient visit. Injury-related hospitalizations (n=22)
and fatalities (n=3) were rare. Among men, there was no
consistent relation between marijuana use and injury
incidence for either former users (rate ratio, 1.15; 95%
confidence interval [CI], .97 to 1.36) or current users
(rate ratio, 0.97; 95% CI, .81 to 1.17), compared with
those who had never used marijuana. Among women, former
and current users showed little difference in their rate
of later injury compared with never users; the rate
ratios were 1.05 (95% CI, .87 to 1.26) and 1.20 (95% CI,
1.00 to 1.44), respectively. No statistically
significant associations were noted between marijuana
use and cause-specific injury incidence in men or women.
CONCLUSION: Among members of a health maintenance
organization, self-reported marijuana use in adult men
or women was not associated with outpatient injury
within 3 years of marijuana use ascertainment.
Comments:
- Comment in: Ann Emerg Med 1998 Sep;32(3 Pt
1):361-3
- Comment in: Ann Emerg Med 1999 May;33(5):600-1
PMID: 9737499, UI: 98407517
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