Table 2.

Means and standard deviations (SD) of hand grip strength (HGS; kg) by sex and age stratum.

	Total			Male			Female			p value of t testa
	No.	mean	SD	No.	mean	SD	No.	mean	SD
In General (aged 65 years or more)	2470	19.5	8.4	998	25.4	8.6	1472	15.5	5.4	<0.001
Age Stratum (years)
4 strata
65–69	270	22.3	7.9	61	33.0	6.8	209	19.1	4.8	<0.001
70–74	711	21.5	8.6	269	29.0	7.9	442	16.9	5.1	<0.001
75–79	686	19.8	8.2	292	25.9	7.8	394	15.3	4.7	<0.001
80 or more	803	16.6	7.8	376	21.1	7.8	427	12.6	5.1	<0.001
2 strata
65–74	981	21.7	8.4	330	29.8	7.8	651	17.6	5.1	<0.001
75 or more	1489	18.1	8.1	668	23.2	8.2	821	13.9	5.1	<0.001

Notes: ^aComparison between sexes.