For females, odds ratios for 21–23 and 18–20 age groups were consistently just below, or near 1.0 for most survey years, with significant increases in ORs across time for the 21–23 year old age group (trend OR=1.023, p<0.001). Odds ratios in the 15–17 year age group ranged from 0.2 to 0.4, and the 12–14 year group ranged from 0.01 to 0.14. Unlike the trends for males, there were no significant changes in the relative risk for binge drinking in any of the younger female groups (ages 12–14, 15–17 or 18–20).
