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. 2018 Jul 12;46(8):3042–3052. doi: 10.1177/0300060518767588

Table 3.

Substance consumption patterns by sex, adjusted for age.


Male(n = 332)

Female(n = 399)
Absolute proportionn (%) Adjusted proportion% (95% CI) Absolute proportionn (%) Adjusted proportion% (95% CI)
Has drunk any alcoholic beverages 284 (85.5%) 87.9% (84.0–91.1) 310 (77.7%) 81.3% (77.1–84.9) P = 0.009c
Age when drunk any alcoholic beverages for the first time [years], mean (95% CI) 14.2 (13.9–14.6) 15.2 (14.9–15.5) P < 0.001a
Drinks alcoholic beverages ≥1 times/weekd 73 (22.0%) 24.6 (20.3–29.6) 24 (6.01%) 7.5 (5.3–10.6) P < 0.001c
Has been drunk 111 (33.4%) 38.3 (33.0–43.6) 84 (21.0%) 24.0 (20.1–28.6) P = 0.001c
Has never drunk any alcoholic beverages, % (95% CI) 43 (13.0%) 80 (20.1%)

No response, % (95% CI)

5 (1.5%)


9 (2.2%)


Has smoked tobacco 195 (58.7%) 64.7 (59.3–69.8) 192 (48.1%) 51.7 (46.6–56.6) P = 0.002c
Age of first smoking experience [years], mean (95% CI) 14.4 (14.0–14.8) 15.2 (14.8–15.5) P = 0.012a
Smokes ≥1 times/weekd 72 (21.7%) 24.8 (20.3–29.8) 36 (9.0%) 9.7 (7.0–12.9) P < 0.001c
Has never smoked, % (95% CI) 122 (36.7%) 190 (47.6%)

No response, % (95% CI)

15 (4.5%)


17 (4.3%)


Has tried addictive drugs 74 (22.3%) 25.0 (20.5–29.8) 39 (9.8%) 9.8 (7.1–13.0) P < 0.001c
Age at first addictive drug use [years], mean (95% CI) 16.4 (15.9–16.9) 17.0 (16.6–17.5) P = 0.089b
Has never tried addictive drugs, % (95% CI) 251 (75.6%) 353 (88.5%)
No response, % (95% CI) 7 (2.1%) 7 (1.8%)

aMann–Whitney U test; bStudent’s t-test; clogistic regression; dThe cutoff of ≥1 per week was based on the World Health Organizations’s Alcohol Use Disorders Identification Test (AUDIT) categories or on clinical experience. CI, confidence interval.