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. Author manuscript; available in PMC: 2013 Jul 15.
Published in final edited form as: Subst Abus. 2013 Jul-Sep;34(3):298–305. doi: 10.1080/08897077.2013.775092

Table 1.

Percentages in variables by marijuana use trajectory group

None or low users
(64%, n=519)
Increasers
(10%, n=81)
Moderate users
(12%, n=99)
Chronic users
(14%, n=117)
Demographic
variables
African -American 53% (n=276) 54% (n=44) 48% (n=48) 49% (n=57)
Females 68% (n=353) 48% (n=39) 57% (n=56) 38% (n=44)

Work
commitment
Employment 89% (n=461) 79% (n=64) 90% (n=89) 80% (n=94)
Work achievement 30% (n=152) 20% (n=16) 26% (n=26) 20% (n=23)
Incapacitated at work 0.8% (n=4) 15% (n=12) 5% (n=5) 19% (n=22)
Skipped work 16% (n=82) 20% (n=16) 23% (n=23) 13% (n=15)

Financial
stability
Financial independence 58% (n=303) 46% (n=37) 57% (n=56) 36% (n=42)
Financial problems 19% (n=97) 19% (n=15) 26% (n=26) 28% (n=33)

Social
environment
Co-worker’s illegal drug use 11% (n=58) 30% (n=24) 20% (n=20) 27% (n=22)
Violence towards subject 8% (n=42) 15% (n=12) 12% (n=12) 23% (n=27)
Peer drug association 6% (n=31) 14% (n=11) 11% (n=11) 32% (n=37)