A new study from the Institute of Marriage and Family Canada (IMFC) revealed that teenagers who use drugs, alcohol and smoke were more likely to report engaging in sexual activity. Also, the study found that increased time with a boyfriend or girlfriend was connected with a greater likelihood of being sexually active. Regarding teens' emotional health, a correlation was found between attempting suicide and being sexually active in girls.

Source: Institute of Marriage and Family Canada
http://www.imfcanada.org/article_files/Rated_PG_Part_II.pdf