Table 1. Measures, Items, and Item Response Formats for Study Constructs.

Construct	Measure	Items	Item Response Format
Alcohol Use	Healthy Daily Living Form	How often did you drink beer during the last 12 months? How often did you drink hard liquor during the last 12 months? How often did you drink wine during the last 12 months? What was the usual amount of beer you had on any typical day when you drank beer during the past 12 months? What was the usual amount of hard liquor you had on any typical day when you drank hard liquor during the past 12 months? What was the usual amount of wine you had on any typical day when you drank wine during the past 12 months?	Frequency of Use
			Never Several times About once a month Several times a month 1 to 2 days a week 3 to 4 days a week 5 to 6 days a week Everyday
			Beer Quantity Responses
			Did not drink beer 1-2 bottles or cans (12 oz.) 3-5 bottles or cans (12 oz.) About 1 six-pack About 2 six-packs 3 six-packs or more
			Hard Liquor Quantity Responses
			Never drank liquor 1-2 drinks 3-4 drinks 5-7 drinks 8-10 drinks About 12 drinks About 1 pint About 2 pints 3 pints or more
			Wine Quantity Responses
			Never drank wine 1-3 glasses 4-5 glasses About 6 glasses (one bottle) About 9 glasses About 2 bottles (12 glasses) Three bottles or more
Drug Use	Drug Use Frequency measure	How often did you use the following drugs or medications during the past 12 months?: sedatives, hypnotics or tranquilizers; cannabis; stimulants; heroin; opioids; cocaine; PCP; hallucinogens; inhalants; others	Never Several times About once a month Several times a month 1 to 2 days a week 3 to 4 days a week 5 to 6 days a week Everyday
Maternal Age of Alcohol and Drug Use Onset	Life Course and Health Research Center Survey	When I mention the following substances, please indicate the age when you first started using that substance: alcohol, sedatives, hypnotics or tranquilizers; cannabis; stimulants; heroin; opioids; cocaine; PCP; hallucinogens; inhalants; others	n/a
Age of Sexual Debut	Life Course and Health Research Center Survey	How old were you the first time you had vaginal sex? How old were you the first time you had oral sex? How old were you the first time you had anal sex?	n/a
Number of Sexual Partners	Life Course and Health Research Center Survey	Thinking back over the past 12 months, with how many different people, including men and women, have you had sex (vaginal, anal or oral) even if only one time?	n/a
Substance Use Before or During Sex	Life Course and Health Research Center Survey	In the last 12 months, how often did you or your sexual partners drink alcohol before or during sex? In the last 12 months, how often did you or your sexual partners use any drugs to get high or intoxicated before or during sex?	1 = Never 2 = Rarely 3 = Sometimes 4 = Usually 5 = Always
Participant and Sexual Partners Intoxication During Sex	Life Course and Health Research Center Survey	On average, how strongly were you affected by the alcohol? On average how strongly was your sexual partner affected by the alcohol? On average, how strongly were you affected by the drugs? On average, how strongly was your sexual partner affected by the alcohol?	1 = Not at all 2 = Somewhat 3 = Very Strongly