The Korean Journal of Sports Medicine

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Table. 2.

Table. 2.

Multiple linear regression for relative handgrip strength according to quartiles of serum uric acid

Model Male Female


Q1 Q2 Q3 Q4 p for trend Q1 Q2 Q3 Q4 p for trend
Crude model Ref 0.02 (−0.01 to 0.05) −0.01 (−0.03 to 0.02) −0.52* (−0.08 to −0.02) <0.001 Ref −0.01 (−0.03 to 0.00) −0.03* (−0.05 to −0.01) −0.11* (−0.12 to −0.09) <0.001
Model 1 Ref −0.02 (−0.05 to0.01) −0.07* (−0.09 to −0.04) −0.12* (−0.15 to −0.01) <0.001 Ref −0.02 (−0.03 to 0.00) −0.04* (−0.05 to −0.02) −0.09* (−0.11 to −0.08) <0.001
Model 2 Ref −0.01 (−0.04 to 0.01) −0.03* (−0.06 to −0.01) −0.04* (−0.07 to −0.02) <0.001 Ref 0.01 (−0.01 to 0.02) −0.01 (−0.02 to 0.01) −0.03* (−0.05 to −0.01) <0.001
Model 3 Ref −0.03* (−0.05 to 0.00) −0.05* (−0.08 to −0.03) −0.07* (−0.09 to −0.04) <0.001 Ref 0.00 (−0.02 to 0.01) −0.02* (−0.03 to 0.00) −0.05* (−0.06 to −0.03) <0.001

Values are presented as β coefficients (95% confidence interval) for relative grip strength.

Ref: reference, Quartiles of serum uric acid (mg/dL): Q1, the 1st quartile (5.0 in males and 3.7 in females); Q2, the 2nd quartile (5.1−5.8 in males and 3.8−4.3 in females); Q3, the 3rd quartile (5.9−6.7 in males and 4.4−4.9 in females); Q4, the 4th quartile (6.8 in males and 5.0 in females).

Model 1: adjusted for age, income; model 2: further adjusted for hypertension, diabetes, hyperlipidemia, cancer, arthritis, smoking status, alcohol intake, daily intake (kcal/day), protein intake (g/day), physical activity, and resistance exercise (day/week); model 3: further adjusted for high sensitivity C-reactive protein (mg/L) and estimated glomerular filtration ratio (mL/min/1.73 m2).

*Significant value.

Korean J Sports Med 2022;40:1-11 https://doi.org/10.5763/kjsm.2022.40.1.1
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