Study protocol for a web-based personalized normative feedback alcohol intervention for young adult veterans

Table 1 Behavioral norms from the Phase 1 sample used in the intervention and control conditions

In the past 30 days…	Male veterans	Female veterans
In the past 30 days…	N = 905	N = 118
Drinking behavior
Number of drinks per week^a	10 drinks More than half of male veterans drink five or fewer drinks per week	9 drinks More than half of female veterans drink three or fewer drinks per week
Number of drinks per occasion^b	3.5 drinks 63 % of male veterans drink between one and three drinks on average	3.2 drinks 73 % of female veterans drink between one and three drinks per occasion on average
Number of binge drinking days	4 days 64 % of male veterans binge drank on 3 days or fewer in the past month	3 days 69 % of female veterans binge drank on 3 days or fewer in the past month
Video game behavior
Days played video games per week	5.1 days 31 % of male veterans play video games 3 days per week or less	4.4 days 34 % of female veterans play video games 3 days per week or less
Hours per day played video games	2.4 h 80 % of male veterans play video games between 1 and 3 h per day on average	2.1 h 80 % of female veterans play video games between 1 and 3 h per day on average
Total hours played video games per week^c	13.5 h More than half of male veterans play video games for <10 h per week	10.2 h More than half of female veterans play video games for <7 h per week

^aCalculated from the sum of the Daily Drinking Questionnaire (DDQ) responses
^bCalculated from sum of DDQ divided by number of days drank in a typical week
^cCalculated from days played video games per week × hours per day played video games

ISSN: 1940-0640