TABLE 2.

Relative Performance of Consumption Items by Age: AUC (95% CI)

	Any Past-Year DSM-IV AUD Symptom			Past-Year Alcohol Dependence
	Frequencya	Quantityb	HED Frequencyc	Frequencya	Quantityb	HED Frequencyc
Age 12	0.99 (0.98–0.99)	0.98 (0.98–0.98)	0.63 (0.60–0.66)	0.99 (0.99–0.99)	0.98 (0.98–0.99)	0.74 (0.65–0.83)
Age 13	0.98 (0.97–0.98)	0.96 (0.95–0.96)	0.64 (0.62–0.66)	0.98 (0.97–0.98)	0.95 (0.94–0.96)	0.71 (0.65–0.77)
Age 14	0.97 (0.96–0.97)	0.93 (0.93–0.94)	0.70 (0.69–0.72)	0.96 (0.95–0.97)	0.93 (0.92–0.94)	0.80 (0.76–0.83)
Age 15	0.96 (0.95–0.96)	0.91 (0.91–0.92)	0.74 (0.72–0.75)	0.94 (0.93–0.94)	0.89 (0.88–0.91)	0.80 (0.77–0.82)
Age 16	0.95 (0.94–0.95)	0.90 (0.89–0.90)	0.77 (0.76–0.78)	0.92 (0.91–0.93)	0.87 (0.86–0.88)	0.81 (0.79–0.83)
Age 17	0.93 (0.93–0.94)	0.88 (0.88–0.89)	0.79 (0.78–0.80)	0.90 (0.89–0.90)	0.84 (0.83–0.85)	0.81 (0.80–0.83)
Age 18	0.91 (0.91–0.92)	0.87 (0.86–0.88)	0.82 (0.81–0.82)	0.89 (0.88–0.90)	0.82 (0.81–0.84)	0.83 (0.81–0.85)

Results are presented at each age (rather than by gender within age) because results by gender within age were similar at each age.

^aNumber of drinking days in the past year.

^bQuantity consumed per occasion.

^cHeavy episodic drinking frequency (ie, number of days of 5+ drinks per occasion in the past year).