Pelvic inflammatory disease and risk of ovarian cancer

Fabio Parazzini, Carlo La Vecchia, Eva Negri, Simona Moroni, Daniela Dal Pino, Luigi Fedele

Research output: Contribution to journalArticle

Abstract

We analyzed the association between history of pelvic inflammatory disease (PID) and the risk of subsequent epithelial ovarian cancer, using data from a large case-control study conducted between 1983-1991 in Italy. Data were collected from a network of hospitals, including the main teaching and general hospitals in the greater Milan area, Northern Italy. The cases studied were 971 women below the age of 75 years (median age, 54 years) with histologically confirmed epithelial ovarian cancer, diagnosed within 1 year before the interview. Control subjects were 2758 women admitted to the same hospitals where cases were identified for acute, nonmalignant, nonhormone- related conditions, who bad not undergone bilateral oophorectomy. The median age of the control group was 52 years (range, 23-74). A total of 14 (1.4%) cases and 72 (2.6%) controls reported a history of PID/salpingitis, the corresponding multivariate relative risk being 0.7 (95% confidence interval, 0.4-1.3). A separate analysis of the association between history of PID/salpingitis and risk of ovarian cancer in strata of parity and education confirmed the results based on the whole series. In conclusion, although based on limited numbers of cases and controls with PID, this studies was able to exclude, at the conventional 95% confidence limit, an increased risk of ovarian cancer of over 30% in women with previous PID in this population.

Original languageEnglish
Pages (from-to)667-669
Number of pages3
JournalCancer Epidemiology Biomarkers and Prevention
Volume5
Issue number8
Publication statusPublished - Aug 1996

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ASJC Scopus subject areas

  • Epidemiology
  • Oncology

Cite this

Parazzini, F., La Vecchia, C., Negri, E., Moroni, S., Dal Pino, D., & Fedele, L. (1996). Pelvic inflammatory disease and risk of ovarian cancer. Cancer Epidemiology Biomarkers and Prevention, 5(8), 667-669.