Table 2c. Change in Weekly Frequency of Mild, Moderate, and Vigorous Leisure-Time Physical Activity for Participants Who Did Not Perform Vigorous Physical Activity at Work, Baseline to 3 Months, by Intervention Arm.
| Leisure-Time Physical Activity, Times per Wk | Delayed Intervention (n = 131) | Immediate Intervention (n = 130) | P c | ||||
|---|---|---|---|---|---|---|---|
|
| |||||||
| Baseline (n = 122)a | 3 months (n = 122)a | Δb | Baseline (n = 128)a | 3 months (n = 128)a | Δb | ||
|
| |||||||
| Mean (SE) | |||||||
| Vigorous | 0.35 (0.1) | 0.7 (0.2) | −0.32 (0.2) | 0.29 (0.1) | 0.68 (0.2) | −0.39 (0.2) | .73 |
| Moderate | 1.03 (0.2) | 1.48 (0.2) | −0.39 (0.2) | 1.38 (0.2) | 2.08 (0.2) | −0.76 (0.2) | .11 |
| Mild | 3.11 (0.3) | 3.65 (0.3) | −0.51 (0.3) | 3.5 (0.2) | 3.8 (0.2) | −0.26 (0.3) | .59 |
| Total | 4.5 (0.4) | 5.83 (0.4) | −1.21 (0.5) | 5.17 (0.4) | 6.56 (0.4) | −1.41 (0.4) | .35 |
Abbreviations: SE, standard error.
a
Differences in totals due to missing data.
b
Δ: mean (SE) is the difference in times per week of leisure-time physical activity from baseline to 3-month measures. A negative value indicates an increase in frequency of exercise.
c
Alternative hypothesis states that the change from baseline to 3-month follow-up in the delayed intervention is greater than the change from baseline to 3-month follow-up in the immediate intervention. Categorical data were analyzed by using Pearson’s χ2 or Fisher’s exact test. All tests were 1-sided.