Table 4C.
Change in number of Phlebotomus argentipes (both sexes) collected in households in each intervention arm compared with control arm expressed as rate ratios by month of collection, Fulbaria, Mymensingh, Bangladesh. Interventions instituted November 2006
| Month | IRS* | ITN | EVM |
|---|---|---|---|
| Rate ratio (95% CI) | Rate ratio (95% CI) | Rate ratio (95% CI) | |
| Oct 2006 | 0.99 (0.70–1.41) | 1.16 (0.81–1.64) | 1.06 (0.75–1.51) |
| Jan 2007 | 0.15 (0.05–0.46)† | 0.36 (0.15–0.83)† | 0.88 (0.45–1.69) |
| Mar 2007 | 0.24 (0.17–0.35)† | 0.26 (0.18–0.37)† | 0.80 (0.57–1.12) |
| Apr 2007 | 0.21 (0.14–0.32)† | 0.22 (0.14–0.33)† | 0.77 (0.54–1.10) |
| Oct 2007 | 1.57 (1.09–2.25)‡ | 0.40 (0.26–0.60)† | 1.43 (1.00–2.06)‡ |
*
IRS = indoor residual spraying; ITN = insecticide-treated nets; EVM = environmental management.
†
Difference significant at P < 0.05 with rate ratio < 1.0 (decreased sand fly density) compared with control.
‡
Difference significant at P < 0.05 with rate ratio > 1.0 (increased sand fly density) compared with control.