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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Exp Clin Psychopharmacol. 2014 May 19;22(4):348–355. doi: 10.1037/a0036935

Table 1.

Condition
Percentile Fixed Criterion Random
Number 36 40 18
Female (%) 12 (33) 12 (30) 7 (39)
Age [M (SD)] 44.9 (12.2) 43.8 (12.7) 43.1 (11.1)
Caucasian (%) 27 (75) 22 (55) 12 (67)
Marital Status
 Single (%) 15 (42) 15 (38) 5 (28)
 Married (%) 11 (31) 12 (30) 5 (28)
 Other (%) 10 (28) 13 (33) 8 (44)
Income (US$)
 < 15,000 (%) 13 (36) 12 (30) 9 (50)
 15–24,999 (%) 6 (17) 6 (15) 4 (22)
 25–34,999 (%) 8 (22) 8 (20) 1 (6)
 >35,000 (%) 9 (25) 14 (35) 4 (22)
Employment
 Full time (%) 17 (47) 25 (63) 6 (33)
Education
 GED or HS (%) 10 (28) 19 (48) 7 (39)
 Vo tech or AA (%) 19 (53) 9 (23) 7 (39)
 Bachelors + (%) 7 (19) 12 (30) 4 (22)
Parent(s) smoked
 Yes (%) 33 (92) 34 (85) 14 (78)
 Mom only (%) 2 (6) 5 (15) 4 (29)
 Dad only (%) 12 (36) 11 (32) 3 (21)
 Both (%) 19 (58) 18 (53) 7 (50)
Age of
 First cigarette [M (SD)] 14.4 (3.4) 15.7 (6.6) 17.1 (5.2)
 Regular smoker [M (SD)] 17.2 (4.3) 18.5 (6.3) 19.7 (5.9)
Lives with a smoker
 Yes (%) 20 (56) 23 (58) 11 (61)
Previous Quit Attempt?
 Yes (%) 29 (81) 35 (88) 15 (83)
Average
 Cigarettes per day [M (SD)] 24.2 (8.5) 24.2 (7.4) 27.1 (9.4)
 Intake Breath CO ppm [M (SD)] 24.0 (7.9) 24.2 (8.7) 26.1 (9.0)