ABSTRACT
Objective To explore the detection rate and major risk factors of nodular thyroid diseases among adults.Methods A total of 35 495 adults who carried out health checkup during January 1st,2009 and December 31th,2010 in our center were assessed for the occurance of nodular thyroid diseases and the size and number of thyroid nodules by age and gender.Chi-square test,rank sum test and Chi-square trend test were used for data analysis.Results The total detection rate of nodular thyroid diseases was 33.87％ (female vs male:41.76％ vs 29.68％).The prevalence of single thyroid nodule was decreased with age,as opposed to multi-thyroid nodules.Single thyroid nodule was more commonly seen in males,which was reversed in multi-thyroid nodules.Small,middle and large thyroid nodules were found in 77.49％,18.19％ and 4.32％ males or 72.57％,21.59％ and 5.84％ females,respectively.Moreover,thyroid cancer was detected in 0.4‰ of those with nodular thyroid diseases.Conclusions The detection rate of nodular thyroid diseases among adult health checkup receivers was higher,which calls on the needs of intensive monitor and effective prevention of the condition.