Korean women first have sex at the age of 21.5 and hope to have their first child at 31.9, according to a straw poll marking 2012 World Contraception Day.
The poll by 11 international NGOs among 100 women in their 20s or 30s each in eight Asian countries and sponsored by Bayer HealthCare was released on Monday.
The Asia-wide average age when women first have sex is 22, and their average favored age of first childbirth 30.
The age when Korean women want their first child is the highest in Asia, but many are lax with contraception. Some 67 percent of Korean respondents said they have had sex without contraceptives at least once, and 14 percent they were unaware of the risk of pregnancy.
Asked about their preferred method of contraception, 48 percent said condoms and 15 percent contraceptive pills. Sixteen percent answered they have no plans to use contraception.