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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