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. 2023 Nov 4;9(11):e21866. doi: 10.1016/j.heliyon.2023.e21866

Fig. 1.

Fig. 1

(A) Results of Pearson's correlation analysis between serum creatinine level (mg/dL) and SMI using DXA (kg/m2) in participants of both sexes (n = 1,502, r = 0.614, P < 0.0001) of the KNHANES group. (B) Results of Pearson's correlation analysis between serum creatinine level (mg/dL) and SMI using BIA (kg/m2) in participants of both sexes (n = 4,586, r = 0.637, P < 0.0001) of the HC group. (C) Results of Pearson's correlation analysis between serum creatinine level (mg/dL) and SMI using DXA (kg/m2) in KNHANES group males (n = 456, r = 0.316, P < 0.0001). (D) Results of Pearson's correlation analysis between serum creatinine level (mg/dL) and SMI using BIA (kg/m2) in HC group males (n = 1,967, r = 0.189, P < 0.0001). (E) Results of Pearson's correlation analysis between serum creatinine level (mg/dL) and SMI using DXA (kg/m2) in KNHANES group females (n = 1,046, r = 0.161, P < 0.0001). (F) Results of Pearson's correlation analysis between serum creatinine level (mg/dL) and SMI using BIA (kg/m2) in HC group females (n = 2,619, r = 0.158, P < 0.0001).

*Abbreviations: SMI, skeletal muscle mass index as the sum of appendicular muscle mass of the four limbs, adjusted with height squared; DXA, dual-energy X-ray absorptiometry; BIA, bioelectrical impedance analysis; KNHANES, Korea National Health and Nutrition Examination Survey; HC, Health Check.