Is development of pelvic inflammatory disease in women using intra-uterine device equal regardless of parity? A one year follow-up study.

Seven hundred and fifty women using IUD(TCu 200) were observed for one year after insertion. Sixteen (2.1%) of the women were hospitalized for salpingitis (PID), and the diagnosis was always confirmed by laparascopy. Of these 16 women, 8 belonged to the nulliparous group and 8 to the parous group. In the high-risk age-group (16--25 years), the incidence of salpingitis was 47/1000 women-year in the nulliparous group, and 42/1000 women-year in the parous group. Thus, the rate of development of salpingitis is equal regardless of parity.