This nationwide population-based cohort study was based on data obtained from the Taiwan National Health Insurance Database from 2000 to 2011. 
the Taiwan National Health Insurance Database
A Cox proportional hazards model was applied to estimate the effect of radiation from the (131)I therapy on the risk of salivary and lacrimal gland impairment as well as second primary malignancies in terms of hazard ratios (HRs) and 95% confidence intervals (CIs).



a Cox proportional hazards model
European journal of nuclear medicine and molecular imaging
D000328:Adult; D000368:Aged; D015331:Cohort Studies; D005128:Eye Diseases; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D007765:Lacrimal Apparatus; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary; D019275:Radiopharmaceuticals; D011878:Radiotherapy; D012466:Salivary Gland Diseases; D013624:Taiwan; D013964:Thyroid Neoplasms
Ko Kuan-Yin KY ;Kao Chia-Hung CH ;Lin Cheng-Li CL ;Huang Wen-Sheng WS ;Yen Ruoh-Fang RF 