an increasing trendP > 0.05
The serum TSH level showed an increasing trend as UIC was increasing, but Kruskal‐Wallis test demonstrated that there were no differences in TSH with UIC (all P > 0.05).
The serum TSH level showed an increasing trend as UIC was increasing, but Kruskal‐Wallis test demonstrated that there were no differences in TSH with UIC (all P > 0.05).