Participants' sexual history was characterized by two questions. The first, “Have you ever had sexual intercourse with someone?”, if answered positively, was followed by an additional question, “How old were you when you had sexual intercourse for the first time (voluntarily)?” Participants' religious status was assessed by the question, “What religion were you raised in?” Those who did not provide a religion were characterized as “Not affiliated” while those who provided a religion were classified as having a religious background. Participants' metropolitan status during childhood was assessed by the question, “Was the home that you lived in (the longest) from age 6 to 13 in a large metropolitan area (population is at least 100,000), a suburb of a large city, a small city (population is 25,000–100,000), a small town (population is <25,000), or out in the country?”