82年6月我科对驻西宁黄南地区部队人员口腔粘膜白斑进行调查。统计分析结果如下: 调查人数为820名,年龄在17～70周岁,男性710名,女性110名,发病率为10.85％。均系男性,发病年龄最小者为19岁,最大者为65岁,经分组统计,发病率随年龄增大而发病率增高。在吸烟与非吸烟患白斑中,吸烟者333人中有71名患白斑,发病率为21.32％。非吸烟者487人中有18名患白斑,发病率为3.69％。吸烟者 In June 1982, our department investigated the oral leukoplakia of troops in Huangnan area in Xining. The statistical analysis results are as follows: The survey population was 820, aged 17 to 70 years, 710 males and 110 females, the incidence was 10.85%. Both were male, the youngest was 19 years old, the largest is 65 years old, by grouping statistics, the incidence rate increases with age and increased incidence. Among smoking and non-smoking white spots, 71 smokers out of 333 people were found to have white spots with a prevalence of 21.32%. 18 of 487 non-smokers suffered from leukoplakia with an incidence of 3.69%. Smoker