Mean Change in Physical Activity Measures From Baseline to 3-Month Follow-Up in the Living Healthy Trial
| Baseline | Follow-Up | Raw Change in Score ± SD | P Valuea | |
|---|---|---|---|---|
| Mean days per week engaged in intense physical activity ± SDb | .23 | |||
| Con | 2.2 ± 1.9 | 2.8 ± 2.0 | 0.6 ± 2.3 | |
| Int | 2.8 ± 2.0 | 3.5 ± 2.2 | 0.7 ± 2.6 | |
| Mean days per week walked for exercise ± SDc | <.001 | |||
| Con | 0.8 ± 0.4 | 0.7 ± 0.5 | –0.1 ± 0.4 | |
| Int | 0.7 ± 0.4 | 0.9 ± 0.3 | 0.2 ± 0.5 | <.001 |
| Physical activity levels compared with others your age, No. (%)d | ||||
| Less active | ||||
| Con | 44 (44) | 31 (31) | –13 (7) | |
| Int | 34 (35) | 20 (21) | –14 (7) | |
| Same as others my age | ||||
| Con | 28 (28) | 42 (42) | +14 (7) | |
| Int | 30 (31) | 29 (31) | –1 (1) | |
| More active | ||||
| Con | 27 (27) | 26 (26) | –1 (1) | |
| Int | 32 (33) | 45 (48) | +13 (7) |
Con = control group; GEE = general estimating equation; Int = intervention group.
↵a GEE models testing the difference in the change from baseline to follow-up between groups, adjusting for clustering and baseline values.
↵b “How many times per week do you engage in intense physical activity, enough to work up a sweat?”
↵c “Over the past 7 days, how many days did you walk for exercise?”
↵d “How would you compare your activity level to others your age?”