. 2022 May 23;5(5):e2212921. doi: 10.1001/jamanetworkopen.2022.12921

Table 4. Intervention Effects on Tertiary Outcomes of Physical Activity (Additionally Adjusted for Wear Time).

Group, outcome, and time frame	Standard-plus		Standard		Adjusted difference (SE)^a	P value^a
Group, outcome, and time frame	Mean (SD)	P value	Mean (SD)	P value	Adjusted difference (SE)^a	P value^a
All participants
Sedentary behavior change, min/d
12 wk	−13.9 (59.2)	.049	4.2 (73.0)	.59	−16.1 (8.1)	.05
24 wk	−13.0 (62.2)	.09	6.1 (69.0)	.45	−11.9 (11.5)	.32
36 wk	1.7 (71.7)	.85	1.4 (58.9)	.85	−3.4 (10.3)	.75
Moderate to vigorous activity change, min/d
12 wk	3.4 (15.9)	.07	0.1 (14.2)	.93	3.1 (2.8)	.28
24 wk	−3.5 (21.8)	.19	−2.9 (16.6)	.15	−0.1 (2.2)	.95
36 wk	−2.9 (17.4)	.19	−3.3 (13.6)	.048	0.9 (3.0)	.78
Steps change, steps/d
12 wk	132 (1166)	.34	−80 (1216)	.54	208 (237)	.39
24 wk	−362 (1322)	.03	−423 (1532)	.02	52 (188)	.78
36 wk	−479 (1362)	.007	−489 (1098)	<.001	31 (182)	.86
Vector magnitude change, counts/d
12 wk	9032 (66 505)	.25	−8313 (65 215)	.24	15 479 (11 663)	.19
24 wk	−24 578 (119 701)	.09	−16 740 (78 750)	.07	−3429 (11 223)	.76
36 wk	−27 259 (75 706)	.005	−20 978 (58 291)	.004	2401 (11 329)	.83
Slow walkers (<1.0 m/s)
Sedentary behavior change, minutes/d
12 wk	−7.6 (71.0)	.55	−7.5 (94.0)	.64	−5.4 (13.9)	.70
24 wk	−11.6 (59.7)	.30	0.5 (61.7)	.97	−7.1 (14.0)	.61
36 wk	−6.5 (62.7)	.57	−9.6 (62.5)	.43	−2.9 (16.8)	.87
Moderate to vigorous activity change, min/d
12 wk	−1.3 (9.3)	.43	0.5 (14.5)	.83	−2.9 (3.8)	.45
24 wk	−7.0 (14.8)	.85	0.5 (13.4)	.02	−2.6 (3.8)	.49
36 wk	−2.6 (16.0)	.38	−2.8 (11.1)	.20	−0.8 (4.5)	.86
Steps change, steps/d
12 wk	−5 (770)	.97	13 (1140)	.95	−157 (318)	.63
24 wk	−648 (1059)	.003	192 (1258)	.44	−394 (330)	.24
36 wk	−401 (1089)	.05	−258 (700)	.07	−179 (328)	.59
Vector magnitude change, counts/d
12 wk	−1822 (36 668)	.78	−2020 (67 677)	.86	−12 219 (17 065)	.48
24 wk	−30 918 (67 780)	.02	8796 (68 864)	.51	−16 931 (18 509)	.37
36 wk	−21 406 (57 445)	.05	−11 911 (52 139)	.25	−9276 (18 981)	.63
Fast walkers (≥1.0 m/s)
Sedentary behavior change, minutes/d
12 wk	−18.7 (48.8)	.02	12.1 (54.2)	.11	−26.9 (11.4)	.02
24 wk	−14.1 (64.7)	.18	9.3 (73.3)	.39	−15.6 (15.2)	.32
36 wk	8.9 (79.0)	.52	8.8 (56.0)	.33	−3.7 (11.9)	.76
Moderate to vigorous activity change, minutes/d
12 wk	7.0 (18.7)	.02	−0.1 (14.1)	.95	7.0 (3.4)	.05
24 wk	−0.9 (25.6)	.82	−4.7 (18.1)	.08	1.6 (3.0)	.60
36 wk	−3.1 (18.8)	.34	−3.7 (15.2)	.13	2.0 (3.6)	.60
Steps change, steps/d
12 wk	235 (1394)	.29	−142 (1271)	.42	433 (305)	.18
24 wk	−155 (1461)	.51	−776 (1576)	.002	356 (293)	.24
36 wk	−548 (1578)	.051	−645 (1285)	.003	175 (254)	.50
Vector magnitude change, counts/d
12 wk	17 239 (81 743)	.18	−12 549 (63 818)	.16	30 344 (16 361)	.08
24 wk	−19 981 (147 081)	.40	−31 409 (80 985)	.01	5043 (15 915)	.75
36 wk	−32 425 (89 349)	.04	−27 099 (61 988)	.009	9759 (15 407)	.53

^{^a}

Obtained using a linear mixed model with multiple imputation for missing values additionally adjusted for wear time.