Table 1.

Description of items and weighted prevalence rates at waves 1 and 2

		Weighted prevalence,%
Indicator (past 12 months)		Wave 1	Wave 2
Dependence
Larger/longer	• Ever have perioda when ended up drinking more than intended	8.36	11.12
	• Ever have period when kept drinking longer than intended
Tolerance	• Ever find usual number of drinks had less effect than before	5.47	6.10
	• Ever had to drink more to get the effect wanted
	• Ever drink equivalent of a fifth of liquor in 1 day
	• Ever increase drinking because amount formerly consumed no longer gave desired effect
Try to cut down or quit	• More than once want to stop or cut down on drinking	7.12	9.33
	• More than once try unsuccessfully to stop or cut down on drinking
Continue despite problems	• Ever continue to drink even though made depressed, uninterested in things, suspicious or distrustful of other people	3.12	4.03
	• Ever continue to drink even though causing health problem
	• Ever continue to drink despite prior blackout
Withdrawal	• Two of:
	• Ever had trouble falling/staying asleep when effects of alcohol were wearing off	5.16	5.89
	• Ever shake when effects of alcohol were wearing off
	• Ever feel anxious or nervous when effects of alcohol were wearing off
	• Ever have nausea when effects of alcohol were wearing off
	• Ever feel unusually restless when effects of alcohol were wearing off
	• Ever sweat or heart beat fast when effects of alcohol were wearing off
	• Ever see, feel, hear things when effects of alcohol were wearing off
	• Ever have fits or seizures when effects of alcohol were wearing off
	OR
	• One of:
	• Ever drink or use medicine or drug other than aspirin, Tylenol or Advil to get over bad after-effects of drinking
	• Ever drink or use medicine or drug other than aspirin, Tylenol or Advil to avoid bad after-effects of drinking
Spend lots of time	• Ever have period when spent lot of time drinking	2.00	2.29
	• Ever spent a lot of time being sick or getting over bad after-effects of drinking
Give up important activities	• Ever give up or cut down important activities to drink	0.68	0.74
	• Ever give up or cut down pleasurable activities to drink
Abuse
Hazardous drinking	• More than once drive a vehicle while drinking	7.00	8.50
	• More than once drive a vehicle after having too much to drink
	• Ever in situations that increased chances of getting hurt while drinking or after drinking
Continue to drink despite interpersonal problems	• Ever continue to drink despite causing trouble with family or friends	1.88	1.87
	• Ever get into physical fight when or right after drinking
Interfered with roles	• Ever have period when drinking interfered with taking care of home or family; ever have job or school troubles because of drinking	0.85	0.83
Legal troubles	• Ever get arrested or have other legal problems because of drinking	0.70	0.57
Alcohol consumption	• Drank any alcohol	49.70	54.77
Monthly drinking	• Once per month, 2 to 3 times per month, once per week, 2 times per week, 3 to 4 times per week, nearly every day, every day	32.86	36.61
Weekly drinking	• Once per week, 2 times per week, 3 to 4 times per week, nearly every day, every day	5.13	4.60
Daily drinking	• Every day, nearly every day
Heavy episodic drinking	• Drank five + drinks of any alcohol (men)	26.33	31.24
	• Drank four+drinks of any alcohol (women)
Drunk	• Drank enough to feel intoxicated	26.56	30.71

^aIn the past 12 months.