Survey point
|
Control schools
|
Intervention schools
|
---|
|
n
|
Adults (%)
|
Odds ratio (95% CI)
|
n
|
Adults (%)
|
Odds ratio (95% CI)
|
---|
Novembera
|
200
|
194 (97.0)
|
1
|
200
|
195 (97.5)
|
1
|
December
|
200
|
196 (98.0)
|
1.01(0.83–1.23)
|
200
|
3 (1.5)
|
0.02 (0.00–0.04)*
|
January
|
200
|
189 (94.5)
|
0.97 (0.80–1.19)
|
200
|
4 (2.0)
|
0.02 (0.01–0.05)*
|
March
|
200
|
198 (99.0)
|
1.02 (0.84–1.24)
|
200
|
18 (9.0)
|
0.09 (0.05–0.15)*
|
May
|
200
|
195 (97.5)
|
1.01 (0.82–1.23)
|
200
|
38 (19.0)
|
0.19 (0.14–0.27)*
|
- *P < 0.05; significant difference when compared with the baseline proportion of November
- aBefore the intervention (baseline)