Table 1

Worksite level characteristics of employed teens by condition

Worksite level characteristicsFinal survey
InterventionControl
Mean age (in years)16.516.3
Mean % male5256
Mean % white, non-Hispanic6458
Mean % who have ever smoked2518
Current % smoker3021
% attend school9394
Mean tenure at job (in months)1916
Hours worked per week:
    % ⩾20 in school year3340
    % <20 during school year, ⩾20 in summer3032
    % <20 during school year or summer3729