Table 3.
Proportion of households that purchased anti-mosquito products, and expenditure during the last month among those who purchased the products, in trial intervention and control sites surveyed in August–November 2012
| Intervention clusters | Control clusters | Difference of proportions (95%CIca) | |
|---|---|---|---|
| Surveyed households | 5349 | 5142 | |
| Proportion of households that purchased anti-mosquito productsa | 47.8% (2530/5293) | 53.3% (2707/5079) | −0.05 (−0.1 to −0.01) |
| Among households spending anything | |||
| Mean expenditure in the last month (USD) | 6.0 (SD 5.9) | 6.83 (SD 6.84) | |
| Proportion spending more than the mean of USD 6.43b | 30.4% (768/2530) | 36.7% (993/2707) | −0.06 (−0.12 to −0.01) |
| Among all households | |||
| Mean expenditure in the last month (USD) | 2.86 (SD 5.12) | 3.65 (SD 6.04) | |
| Proportion spending more than the mean of USD 3.25c | 30.6% (1622/5293) | 37.5% (1906/5079) | −0.07 (−0.09 to −0.05) |
aCluster t-test. t = −2.193, df 88 p = 0.031
bCluster t-test. t = −1.978, df 88, p = 0.05
cCluster t-test. t = −2.653, df 88, p = 0.009