Reproducibility and validity of oral visual inspection by trained health workers in the detection of oral precancer and cancer.

摘要: A randomized intervention trial is in progress Kerala, India, to evaluate the effectiveness of oral visual inspection by trained health workers (HWs) prevention cancer. Fourteen with college graduation as basic qualification were identify cancers and precancers among participants screening refer them for further confirmation management. The aim present study was reproducibility validity test provided worker against reference findings three physicians. total 2069 subjects who had already been examined re-examined sensitivity specificity 94.3% 99.3% respectively. There moderate agreement between initial repeat mouth examinations carried out workers, which on average 6 months apart. almost perfect (kappa = 0.85) physicians identifying different types precancerous lesions. our indicate that it possible train resource persons perform cancer accurately doctors, although experience appears be a crucial component workers' accuracy. efficacy such an approach reduce incidence mortality from cancer, however, remains proven.