Northeast Brazil of 19 .4 years among females and 16 .2 years among males , ages that are likely to be lower in Bahia . These data also indicate a marked cohort trend toward earlier ages at sexual debut and increasing proportions of youth with premarital sexual experience . Nationally , 58 percent of married and 69 percent of unmarried sexually active 15-24-year-olds interviewed in the 1996 DHS reported current use of a modern contraceptive method . Reported contraceptive-use levels were , however , lower in the...











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