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Table 1 Characteristics and outcomes, by marijuana status

From: The grass is not always greener: a multi-institutional pilot study of marijuana use and acute pain management following traumatic injury

Characteristic (%, n) Marijuana user
n = 54
Non-user
n = 207
p value Chronic marijuana user
n = 15
Episodic marijuana use
n = 38
p value
Male sex 61% (33) 61% (126) 0.97 63% (10) 61% (23) 0.89
Age, yearsa 28 (23–39) 46 (26–65) < 0.001 23 (22–43) 29 (23–38) 0.37
Cause of injury    0.08    0.43
 Motor vehicle 80% (43) 80% (166)   69% (11) 84% (32)  
 Motorcycle 4% (2) 11% (23)   6% (1) 3% (1)  
 Pedestrian 17% (9) 9% (18)   25% (4) 13% (5)  
Normal Glasgow coma score 15 83% (45) 81% (168) 0.71 75% (12) 87% (33) 0.42
Injury severity score ISSa 9.5 (4–17) 9 (5–14) 0.74 7 (3.5–15.5) 10 (4–17) 0.37
Intoxicated (BAC ≥ 80 mg/dL) 26% (11) 25% (35) 0.98 31% (4) 23% (7) 0.71
Urine drug screen (UDS) performed 77% (41) 68% (135) 0.17 81% (13) 76% (28) 0.74
 Positive UDS for drugsb 22% (12) 2% (5) < 0.001 13% (2) 26% (10) 0.47
Drugs user (UDS/self-report)b 26% (14) 4% (9) < 0.001 13% (2) 32% (12) 0.19
Clinical outcome
 Mortality 0% (0) 2% (5) 0.59 0% (0) 0% (0)
 LOS, daysa 2 (1–5) 3 (1–6) 0.57 3 (2–6) 2 (1–4) 0.35
 ICU LOS, daysa 1.5 (0–4) 2 (0–5) 0.81 1.5 (0–3) 1.5 (0–4.5) 0.89
  1. MJ marijuana, ICU intensive care unit, LOS length of stay
  2. aData presented as median (IQR)
  3. bDrugs: amphetamines, barbiturates, benzodiazepines, cocaine, methamphetamine, opiates
  4. P < 0.05 in italic is clinically significant