BMC Geriatrics

Table 2 Chair stand time, usual walking speed, rapid walking speed and grip strength by age group among native Japanese, Japanese-American and Caucasian women.

From: Comparison of performance-based measures among native Japanese, Japanese-Americans in Hawaii and Caucasian women in the United States, ages 65 years and over: a cross-sectional study

	Native Japanese			Japanese-Americans			Caucasians
Age group	No.	Mean	95%CI	No.	Mean	95%CI	No.	Mean	95%CI
Chair stand time (sec)
65–69	82	8.0	7.2–8.8	110	8.2	7.4–9.1	4028	11.4	11.2–11.7
70–74	50	8.7	7.7–9.8	264	8.5	8.0–9.1	2933	12.4	12.1–12.7
75–79	19	9.5	7.7–11.2	210	9.0	8.4–9.6	1475	13.2	12.8–13.6
>80	12	9.5	7.5–11.6	66	9.9	8.9–10.9	906	15.6	15.2–16.1
%difference^*		18.8			20.7			36.8
Usual walking speed (m/sec)
65–69	82	1.08	1.02–1.15	113	1.18	1.11–1.25	3535	0.97	0.95–0.98
70–74	50	0.99	0.90–1.07	273	1.12	1.08–1.16	2557	0.90	0.88–0.91
75–79	19	0.89	0.75–1.03	218	1.01	0.96–1.06	1258	0.83	0.81–0.85
>80	12	0.86	0.70–1.02	76	0.87	0.80–0.95	690	0.74	0.71–0.76
%difference^*		20.4			26.3			23.7
Rapid walking speed (m/sec)
65–69	82	1.41	1.32–1.50	113	1.55	1.46–1.64	3535	1.36	1.35–1.38
70–74	50	1.27	1.16–1.39	273	1.50	1.44–1.56	2556	1.28	1.26–1.30
75–79	19	1.13	0.95–1.32	218	1.38	1.31–1.44	1258	1.20	1.17–1.22
>80	11	1.19	0.96–1.42	74	1.19	1.09–1.30	690	1.07	1.03–1.10
%difference^*		15.6			23.2			21.3
Grip strength (kg)
65–69	82	25.4	23.7–27.1	112	21.6	20.4–22.8	4034	22.9	22.6–23.1
70–74	50	23.1	20.9–25.3	274	19.9	19.1–20.7	2955	21.6	21.3–21.9
75–79	19	23.6	20.0–27.2	219	18.5	17.6–19.4	1485	20.5	20.2–20.9
>80	12	20.7	16.5–24.8	76	16.3	14.9–17.7	929	18.6	18.2–19.1
%difference^*		18.5			24.5			18.8

^* %difference with age (age 80+ vs 65–69)

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