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Cervical cancer screening in Porto Alegre, Brazil: alternative methods for detecting cancer precursors in a
1Department of Gynecology and Obstetrics, Federal University of Rio Grande do Sul, Brazil.
Objective:
This study was conducted to test the performance characteristics of cervical cancer screening by visual inspection of the cervix with acetic acid and iodine solution.
Methods:
A total of 100 women were screened for cervical cancer by Pap smear and naked eye inspection of the cervix after application of acetic acid and iodine solution.
Results:
Comparing visual inspection to the Pap test, a sensitivity of 85.7%, specificity of 78.5%, and concordance of 79% (p < .0011) was established. Comparing the Pap test with colposcopy, the corresponding figures were 42.9%, 92.3%, and 66.6% (p < .077), respectively. Visual inspection compared to colposcopy showed corresponding figures of 100%, 7.7%, and 55.5% (p = .48), respectively. Colposcopy and biopsy had an agreement of 100%.
Conclusions:
Visual inspection with acetic acid and iodine solution proved to be a reasonable method of screening for cervical cancer precursors.
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