Table 2. Physical Activity and Dietary Intake Before and After a 3-Month Lifestyle Intervention, Tianjin, China, 2008–2009a .
| Characteristic | Early Group (n = 175) |
Late Group (n = 98) |
Total (N = 273) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre- intervention | Post- intervention | Change | P Valueb | Pre- intervention | Post- intervention | Change | P Valueb | Pre- intervention | Post- intervention | Change | P Valueb | |
| Physical activity | ||||||||||||
| Total physical activity, kcal | 408.8 (188.2) | 394.6 (194.7) | −14.2 | .34 | 291.8 (148.5) | 366.9 (193.9) | 75.1 | <.001 | 366.8 (183.5) | 384.6 (194.5) | 17.8 | .13 |
| Effective physical activity, kcal | 134.8 (112.1) | 183.6 (129.3) | 48.8 | <.001 | 113.9 (97.9) | 178.7 (129.3) | 64.8 | <.001 | 127.3 (107.5) | 181.9 (129.1) | 54.6 | <.001 |
| Effective physical activity times, min | 26.7 (22.3) | 35.0 (24.3) | 8.3 | <.001 | 22.1 (18.5) | 34.1 (25.2) | 12.0 | <.001 | 25.1 (21.1) | 34.7 (24.6) | 9.6 | <.001 |
| Dietary intake | ||||||||||||
| Total energy from diet, kcal | 2,224.4 (592.2) | 1,933.4 (328.3) | −291.0 | <.001 | 2,183.8 (423.6) | 1,788.6 (234.7) | −395.2 | <.001 | 2,209.9 (537.3) | 1,881.4 (305.7) | −328.5 | <.001 |
| Total protein, % energy | 15.8 (3.4) | 17.1 (3.4) | 1.3 | <.001 | 16.8 (3.0) | 15.9 (2.4) | −0.9 | .005 | 16.1 (3.3) | 16.7 (3.1) | 0.6 | .009 |
| Total fat, % energy | 27.1 (7.3) | 26.2 (5.9) | −0.9 | .13 | 27.6 (5.2) | 26.3 (4.0) | −1.3 | .005 | 27.3 (6.6) | 26.2 (5.3) | −1.1 | .010 |
| Total carbohydrate, % energy | 55.4 (10.4) | 55.5 (8.9) | 0.1 | .92 | 55.6 (6.9) | 57.8 (5.0) | 2.2 | .001 | 55.5 (9.3) | 56.3 (7.8) | 0.8 | .097 |
a
Values shown are mean (standard deviation) unless otherwise noted.
b
Paired t test.