Table 6 Outdoor human biting rates using human landing catches and incidence rate ratios in intervention and control groups of Anopheles arabiensis in the Adami Tullu, Ethiopia
Study arms | Person-night catch | Mean biting density (95% CI) | IRR (95% CI) | p-value |
|---|---|---|---|---|
a) Control is the reference group | ||||
Control | 76 | 7.37 (4.56–11.90) | ||
IRS | 76 | 1.89 (1.09–3.30) | 0.257 (0.123–0.536) | < 0.001 |
LLIN | 76 | 4.16 (2.52–6.86) | 0.564 (0.282–1.128) | 0.106 |
IRS + LLIN | 76 | 1.68 (0.95–2.97) | 0.228 (0.108–0.480) | < 0.001 |
b) IRS + LLIN is the reference group | ||||
IRS + LLIN | 57 | 1.68 (0.95–2.97) | ||
IRS | 57 | 1.89 (1.09–3.30) | 1.125 (0.508–2.489) | 0.771 |
LLIN | 57 | 4.16 (2.52–6.86) | 2.469 (1.158–5.265) | 0.019 |