Table 3

Characteristics of ID conditions for purchase attempts

No ID n (%)ID n (%)
**p<0.001.
†Kruskal-Wallis χ2=12.5, p=0.0001.
‡Data missing for six observations.
Total541 (50.0)542 (50.0)
Sex of minor
    Male488 (52.1)449 (47.9)
    Female53 (36.3)93 (63.7)**
Age of minor (years)
    1482 (45.0)100 (55.0)
    15262 (52.5)237 (47.5)
    1690 (45.2)109 (54.8)
    17107 (52.7)96 (47.3)
Day of week
    Saturday369 (49.9)371 (50.1)
    Sunday34 (47.2)38 (52.8)
    Weekday138 (50.9)133 (49.1)
Median time of day11.30 am12.45 pm†
Age of clerk (years)
    <30162 (47.8)177 (52.2)
    30–50271 (52.4)246 (47.6)
    >50107 (47.4)119 (52.6)
Sex of clerk
    Female283 (48.6)299 (51.4)
    Male257 (51.4)243 (48.6)
Clerk asked to see ID‡
    Yes462 (49.2)477 (50.8)
    No75 (54.4)63 (45.6)