Table 3.
Analysis of treatment group differences for physical activity at 6 months*
(Mean values and 95 % confidence intervals)
| Control-PM | Fe-PM | Diff (Ctl − Fe) | ||||||
|---|---|---|---|---|---|---|---|---|
| Daily physical activity | n | Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | TRT P value |
| Sedentary time (min) | 112 | 499 | 475, 523 | 475 | 455, 494 | 24·4 | –6·6, 55·3 | 0·12 |
| LPA (min) | 112 | 238 | 212, 263 | 260 | 237, 283 | –22·3 | –42·8, −1·8 | 0·034 |
| MVPA (min) | 112 | 90 | 78, 103 | 88 | 78, 98 | 1·9 | –14·2, 17·9 | 0·82 |
| Steps | 112 | 9951 | 8956, 10 947 | 9909 | 9086, 10 731 | 42 | –1110, 1196 | 0·94 |
Control-PM, group receiving control pearl millet; Fe-PM, group receiving Fe-biofortified pearl millet; Diff (Ctl − Fe), difference in LS means between Control-PM and Fe-PM groups; TRT P value, P value for treatment group; LPA, light physical activity, defined as minutes spent performing activities in the 1–3 metabolic equivalents range (METS); MVPA, moderate-to-vigorous physical activity, defined as minutes spend performing activities above 3 METS.
Results of linear mixed models adjusted for baseline value of outcome, sex, as well as baseline and endline wear-time. All models include a random effect of hostel (location) and are adjusted for multiple comparisons using a Tukey adjustment.