Relationship between the Prevalence of Thyroid Nodules and Metabolic Syndrome in the Iodine-Adequate Area of Hangzhou, China: A Cross-Sectional and Cohort Study

Figure 1

Prevalence of thyroid nodules. (a) The prevalence of thyroid nodules for women was significantly higher than for men in the 40 to 49 age range, 50 to 59 age range, and the age above 70 (, ; , ; , , respectively). The prevalence of thyroid nodules increased along with increasing age (trend test: for men, ; for women, ). (b) The prevalence of thyroid nodule in the MetS (+) group was higher than in the MetS (−) group for both sexes together (41.71% (1157/2774) versus 33.23% (3572/10748), , ) and for men and women separately (female: 48.15% (260/540) versus 35.43% (1437/4056), , ; male: 40.15% (897/2234) versus 31.90% (2135/6692), , ).

(a) Age and gender-specific distribution of thyroid nodule

(b) Prevalence of thyroid nodule in group (MetS+) and group (MetS−)