Age of onset regular alcohol consumption (yrs) |
18.6 ± 1.6 |
18.6 ± 1.4 |
0.96 |
Duration regular alcohol consumption (yrs) |
5.5 ± 2.7 |
4.2 ± 1.5 |
0.22 |
Average no. of drinking days/week (past 12 mnths.) |
2.8 ± 1.0 |
3.8 ± 1.0 |
0.05 |
Average no. drinks/week (past 12 months) |
14.9 ± 5.9 |
17.6 ± 14.4 |
0.57 |
Average no. drinks/regular drinking occasion |
5.5 ± 2.1 |
4.5 ± 2.5 |
0.32 |
Number of drinking binges (past 12 months) |
23.5 ± 28.8 |
12.5 ± 15.0 |
0.29 |
Maximum no. drinks/24 hours (last 12 months): M |
14.4 ± 6.6 |
7.5 ± 2.3 |
0.01 |
No. days M is consumed (past 12 months): frequency of M |
5.2 ± 3.4 |
33.6 ± 42 |
0.04 |
Lifetime maximum no. drinks/24 hrs. |
17.6 ± 9.5 |
10.3 ± 3.2 |
0.03 |