Objective To explore influencing factors of papillary thyroid carcinoma for making strategies for the prevention of the disease.Methods A 1:2 matched hospital-based case-control questionnaire study was carried out among 123 papillary thyroid carcinoma patients receiving surgery in Fujian Provincial Tumor Hospital between April 2013 through June 2014 and 246 controls having health examination at the hospital during the same period.Results Compared to those of the controls,the cases had significantly higher p...