Effect Estimates of type 2 diabetes according to ferritin levels and dietary iron intake in all 16 studies for the meta-analysis.

aQuartile 4 vs 1–3 serum ferritin.bEffect estimates used in the main analysis. CI, confidence interval; HR, hazard ratio; OR, odds ratio; RR, relative risk; BMI, body mass index; HDL-C, high-density lipoprotein cholesterol; AST, aspartate aminotransferase; ALT, alanine transaminase; GGT, gamma-glutamyl transpeptidase; hsCRP, high sensitivity C-reactive protein; sTRF, serum transferrin receptor-ferritin; IL-6, Interleukin-6; WHR, waist-hip ratio.

a. 四分位数4组与1~3组血清铁蛋白（serum ferritin）对比。b. 主分析中使用的效应估计值。CI：置信区间（confidence interval）；HR：风险比（hazard ratio）；OR：比值比（odds ratio）；RR：相对风险（relative risk）；BMI：体质量指数（body mass index）；HDL-C：高密度脂蛋白胆固醇（high-density lipoprotein cholesterol）；AST：天冬氨酸氨基转移酶（aspartate aminotransferase）；ALT：丙氨酸氨基转移酶（alanine transaminase）；GGT：γ-谷氨酰转移酶（gamma-glutamyl transpeptidase）；hsCRP：高敏C反应蛋白（high sensitivity C-reactive protein）；sTRF：血清转铁蛋白受体-铁蛋白（serum transferrin receptor-ferritin）；IL-6：白细胞介素6（Interleukin-6）；WHR：腰臀比（waist-hip ratio）。