Table 4. Handgrip strength of subjects categorized by gender and quartile of serum uric acid.

	Serum uric acid (mg/dL)
	Quartile-1	Quartile-2	Quartile-3	Quartile-4
	0.6–5.1	5.2–5.8	5.9–6.7	6.8–9.4
Men N = 602	N = 165	N = 136	N = 161	N = 140	P for trend*
Mean handgrip strength (kg)	30.5 (29.4–31.7)	33.0 (31.8–34.2)†	33.6 (32.5–34.7) ‡	33.1 (31.9–34.2) †	<0.001
	0.7–4.0	4.1–4.7	4.8–5.4	5.5–9.3
Women N = 847	N = 233	N = 222	N = 198	N = 194	P for trend*
Mean handgrip strength (kg)	20.4 (19.9–20.9)	20.6 (20.1–21.1)	22.2 (21.6–22.7) ‡ #	21.4 (20.8–22.0) †	<0.001

Mean handgrip strength was obtained by averaging the right and left handgrip strengths. Data presented was mean (95% confidence interval).

* P for trend: Kruskal Wallis test.

† P<0.05

‡ P = 0.001 vs. Quartile-1; and

# P<0.001 vs. Quartile-2 by Bonferroni.