Table 1.

Handgrip strength (kg) in each age group

Age (yr)	Male			Female
	Dominant arm	Nondominant arm	P*	Dominant arm	Nondominant arm	P*
30–39	43.6±0.3	41.6±0.2	<0.001	25.4±0.1	24.1±0.1	<0.001
40–49	42.5±0.2	40.8±0.2	<0.001	25.1±0.1	23.8±0.1	<0.001
50–59	39.6±0.2	38.2±0.2	<0.001	24.0±0.1	22.7±0.1	<0.001
60–69	36.4±0.2	35.1±0.2	<0.001	22.1±0.1	20.8±0.1	<0.001
70–79	30.9±0.3	30.1±0.2	<0.001	18.7±0.2	17.8±0.2	<0.001
P for trend†	<0.001	<0.001		<0.001	<0.001

Values are presented as mean±standard error.

^*Wilcoxon signed-rank test to compare handgrip strength between dominant arm and nondominant arm;

^†From logistic regression for complex sample.