Sexual experiences and behaviours of the parents in the Avon Longitudinal Study of Parents and Childhood (ALSPAC).

The aim of this data note is to describe the sexual experiences, functioning and behaviour data collected from the parent cohorts of the Avon Longitudinal Study of Parents and Children (ALSPAC) occurring during their childhoods and up to 19 years after the birth of the index child. ALSPAC is an ongoing birth cohort which enrolled 14,541 pregnant women living in Avon, an area of southwest England, with expected dates of delivery between April 1991 and December 1992 inclusive. It continues collecting data on these mothers (age range at delivery <16-41 years), their partners (age range at delivery <16-65), and their offspring, so far resulting in 100,000+ phenotype variables. During the index pregnancy the mothers were asked (and at 8 months post-delivery for partners) about their early sexual experiences to identify sexual abuse, the age at which an event first occurred, along with the type of perpetrator (e.g. stranger, relatives, boy/girlfriend). There are also data on these parents' experiences of sexual assault as adults. Both parents were asked also about sexual abuse within a battery of questions identifying Adverse Childhood Events (ACEs). Further longitudinal data described here includes satisfaction with sexual and non-sexual sides of their relationship; sexual functioning; and at seven years post-delivery, both parents were asked to describe their sexual orientation as well as the sex of their partners. These data provide the ability to compare generational differences between parental sexual experiences and behaviours with those of their offspring, as well as allowing comparisons with other longitudinal surveys where similar (or identical) information has been collected such as the National Survey of Sexual Attitudes and Lifestyles (NATSAL-3). This paper forms a companion to a further data note describing similar data collected on the offspring cohort.