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. Author manuscript; available in PMC: 2015 Oct 2.
Published in final edited form as: J Am Stat Assoc. 2014 Oct 2;109(507):905–930. doi: 10.1080/01621459.2014.901223

Table 5.

Summary of substance dependence in each subpopulation. nic: nicotine; mj: marijuana; coc: cocaine; op: opiates; alc: alcohol; oth: other drugs. The percentage in the parenthesis is the substance dependence rate in each subpopulation.

Subset Total Substance Dependence
nic (%) mj (%) coc (%) op (%) alc (%) oth (%)
Black Men 535 254 (47) 136 (25) 248 (46) 44 (8) 332 (62) 61 (11)
Black Women 568 271 (48) 78 (14) 206 (36) 35 (6) 224 (39) 37 (7)
White Men 1131 528 (47) 285 (25) 309 (27) 112 (10) 704 (62) 203 (18)
White Women 1393 572 (41) 121 (9) 174 (12) 67 (5) 433 (31) 131 (9)

Total 3627 1625 (45) 620 (17) 937 (26) 258 (7) 1693 (47) 432 (12)