Decreasing incidence of PID in Amsterdam.

Objective: To study the incidence of pelvic inflammatory disease (PID) in Amsterdam in the period 1983-1990.

Methods: Patients diagnosed with PID based on a clinical definition were reported weekly by 30 general practices who covered 11% of the Amsterdam population. Annual age specific incidences were calculated using the number of women in the participating practices as the denominator.

[Incidence of sexually transmissible disorders in clients of 2 ambulatory venereal disease clinics in Amsterdam, 1981-1987].

Since 1981 sexually transmitted diseases (STD) diagnosed at the STD clinics of the Municipal Health Service of Amsterdam, are registered by sex, sexual orientation and prostitution. Numbers of diagnoses per 1,000 new consultations are compared for each group of visitors over the period 1981-1987. Among heterosexual visitors there has been a steady decline of gonorrhoea and trichomoniasis since 1981.