Table 3.

Subgroup analysis: comparison of increases in the number of steps from baseline to the intervention period (weeks 4–6) (n=72)

			Intervention period (weeks 4–6)
Subgroup		n	Mean	95% CI	P value*	P interaction*
Sex
Male	Intervention	11	2199	783 to 3615	0.021	0.140
	Control	11	401	–331 to 1134
Female	Intervention	25	1409	1054 to 1765	0.005
	Control	25	563	91 to 1036
Age (years)
<65	Intervention	17	1650	780 to 2519	0.006	0.245
	Control	17	148	–475 to 771
≥65	Intervention	19	1651	1127 to 2175	0.019
	Control	19	841	390 to 1292
Baseline number of steps
<6000	Intervention	16	2193	1331 to 3056	<0.001	0.012
	Control	18	264	–183 to 712
≥6000	Intervention	20	1216	745 to 1687	0.229
	Control	18	763	130 to 1397
Physical activity
Low	Intervention	19	1796	1060 to 2531	0.001	0.116
	Control	17	181	–286 to 648
High	Intervention	17	1488	856 to 2121	0.107
	Control	19	812	223 to 1400
Body mass index (kg/m2)
≥25	Intervention	4	1433	–1262 to 4127	0.333	0.701
	Control	8	577	–435 to 1590
<25	Intervention	32	1678	1184 to 2172	0.001
	Control	28	496	65 to 926
Time affluence
Non-affluent	Intervention	10	998	338 to 1658	0.054	0.926
	Control	8	–236	–1550 to 1077
Affluent	Intervention	26	1901	1311 to 2492	0.001
	Control	28	728	390 to 1066
Frailty
Yes	Intervention	2	1692	–10 558 to13 941	0.043	0.166
	Control	7	–599	–1637 to 438
No	Intervention	34	1648	1158 to 2138	0.007
	Control	29	783	421 to 1144
Educational level
High	Intervention	17	1697	869 to 2525	0.022	0.964
	Control	19	569	–5 to 1142
Low	Intervention	19	1609	1035 to 2182	0.004
	Control	17	453	–92 to 997
Employment status
Working	Intervention	17	1286	770 to 1802	0.015	0.661
	Control	17	285	–363 to 932
Not working	Intervention	19	1977	1201 to 2752	0.006
	Control	19	719	257 to 1180
Economic affluence
Affluent	Intervention	29	1670	1112 to 2228	0.002	0.698
	Control	31	572	156 to 988
Non-affluent	Intervention	7	1569	591 to 2547	0.043
	Control	5	154	–1118 to 1425

*t-Test