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. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: Acad Emerg Med. 2009 Nov;16(11):1174–1185. doi: 10.1111/j.1553-2712.2009.00490.x

Table 1.

Baseline Demographic Characteristics: Intervention (I) and Assessed Control (AC) Groups.

I (n=68) AC (n=71) p-value

N (%) N (%)

Age
 ≤ 17 20 (29.4) 21 (29.6) 0.983
 ≥ 18 48 (70.6) 50 (70.4)

Sex
 Male 25 (36.8) 23 (32.4) 0.588
 Female 43 (63.2) 48 (67.6)

Race
 Black/African American 57 (83.8) 55 (77.5) 0.394*
 Hispanic/Latino 7 (10.3) 11 (15.5)
 White 3 (4.4) 5 (7.0)
 Other 1 (1.5) 0

Primary language
 English 62 (91.2) 62 (87.3) 0.796*
 Other: Spanish, Haitian Creole, Cape Verdean 6 (8.8) 9 (12.7)

Marijuana use in last 30 days
 1–9 times 26 (38.3) 30 (42.3) 0.629
 10 or more times 42 (61.7) 41 (57.7)

PTSD + 22 (32.4) 18 (25.4) 0.362

Depression + 10 (15.2) 6 (8.5) 0.222

Risk-taking + 10 (14.7) 13 (18.3) 0.568

Marijuana use prior to injury 8 (11.8) 9 (12.7) 0.870

P-values from chi-square tests or Fisher’s exact tests (Fisher’s exact test denoted by an asterisk).