Table 3.
Participant engagement and number of weights reported before, during and after refresher campaigns
| n a | Preb | Campaign | Post | Pre to campaign difference (p value) | Pre to post difference (p value) | |
|---|---|---|---|---|---|---|
| Campaign Fall 2012 (1–29 October 2012) | 296 | |||||
| Proportion of participants reporting | 68.9% | 69.9% | 62.8% | 0.62 | 0.02 | |
| Number of weights reported/participant | 3.5 ± 5.5 | 6.7 ± 8.6 | 3.5 ± 5.5 | <0.001 | 0.89 | |
| Campaign Spring 2013 (22 April to 19 May 2013) | 377 | |||||
| Proportion of participants reporting | 71.9% | 70.8% | 63.9% | 0.45 | <0.001 | |
| Number of weights reported/participant | 3.3 ± 5.0 | 3.9 ± 4.9 | 1.9 ± 3.0 | <0.001 | <0.001 | |
| Campaign Fall 2013 (21 October to 17 November 2013) | 369 | |||||
| Proportion of participants reporting | 62.0% | 62.5% | 58.2% | 0.75 | 0.04 | |
| Number of weights reported/participant | 2.6 ± 4.3 | 3.3 ± 4.7 | 2.4 ± 4.2 | <0.001 | 0.06 | |
a
Number of participants who were eligible for monthly weight reporting (i.e. had not been suspended from intervention (e.g. due to pregnancy) and had not terminated participation in the study). Indicate again that some cohorts had not reached this point and so were not eligible.
b
Values are observed as percentages or means and standard deviations.