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Towards a rational cervical cytology screening strategy - Case study of a peri-urban settlement
Abstract
Objectives. To assess cervical cytology screening activity in a peri-urban settlement near Cape Town, with a view to informing rational policy development.
Method. Total and age-specific prevalence rates of women who had been screened, relative prevalence by age group of women who had not been screened, and yield of screening were estimated from cytopathology laboratory records and available demographic data. Age-specific prevalence rates among women who had been screened were compared with age at presentation with cervical cancer at the referral hospital. Attendance for colposcopy follow-up was assessed from colposcopy clinic records.
Results. The number of smears taken and the prevalence of women who had been screened peaked in the 20 - 24-year age group, and declined to low levels in those over the age of 40 years. The relative prevalence of those who had not had a smear exceeded 9 in all age groups over 39 years, compared with women of 20 - 24 years. Smears which showed signs of CIN Ill, malignancy or possible malignancy comprised 0,13%. Thirty-six per cent of women booked for colposcopy did not attend.
Conclusions. Efficiency of screening could be improved by emphasising coverage of higher-risk age groups, e.g. women over the age of 30 years, and better follow-up.
