[Validity of visual inspection with acetic acid versus cervical cytology].
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BACKGROUND: Precancerous lesions, conditions associated with exposure to human papillomavirus (HPV), threaten women's health at different stages of life, from adolescence to old age. It has been observed that a low-cost strategy, such as visual inspection with acetic acid (VIA), reveals cervical lesions, while establishing interventions that allow modifying the course of the disease, thus improving women's quality of life. OBJECTIVE: To determine the validity of VIA in comparison with cervical cytology for the detection of precancerous lesions. MATERIAL AND METHODS: Descriptive, observational, cross-sectional, prospective, analytical study. The type of sampling was non-probabilistic. The sample consisted of 638 participants. Data were collected with a data collection form and analyzed quantitatively with the SPSS software. The study complied with the provisions of the General Health Law on Research in Mexico and was approved by the local research committee of the Mexican Institute for Social Security (IMSS, according to its initials in Spanish). RESULTS: VIA compared with cervical cytology showed a sensitivity of 75%, a specificity of 98%, a positive predictive value of 47%, a negative predictive value of 99%, a positive post-test probability of 97%, and a concordance of 61%. CONCLUSION: VIA showed an acceptable sensitivity and can be used as a screening test in conjunction with cytology.