3.1 Characteristics of study objects
A total of 1200 patients who met the inclusion and exclusion criteria and were included in the study. The characteristics of patients are presented in Table 1. The overall median age was 44.17 years old from a range between 17 and 90 years old. Of the total, 930 (77.5%) patients had VaIN 1, 194 (16.2%) patients had VaIN 2, 67 (5.5%) patients had VaIN3 and 9 (0.8%) patients had vaginal cancer.
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