 According to a study based on a sampling of teenagers in Massachusetts, sexual minority youth—that is, those who identify as gay, lesbian, or bisexual or had any same-sex sexual contact in their lifetimes—were significantly more likely than other students to report lifetime sexual intercourse (72% vs. 44%).The same study found that sexual minority youth were more likely to report sexual intercourse before age 13 (18% vs. 4%), sexual intercourse with four or more partners in their lifetimes (32% vs. 11%), and recent sexual intercourse (55% vs. 33%).Among students in the Massachusetts study who ever had sexual intercourse in their lifetimes, sexual minority youth were significantly more likely than other students to report "having been or gotten someone pregnant (15% vs. 4%) and having been diagnosed with HIV or another STI (10% vs.