Table 5. Phlebotomus argentipes sand fly density per house (trap) per night in IRS and control treatment groups for both male and female, only male, only female and graved female.
| Time/sand fly density (count) | IRS, Mean (95% CI) |
Control, Mean (95% CI) |
p-value | % of reduction by intervention |
|---|---|---|---|---|
| Both Male and Female P. argentipes | ||||
| At Baseline | ||||
| Mean ± SD | 4.36 ± 5.73 | 8.71 ± 11.37 | 0.015* | |
| (95% CI) | (2.42–6.30) | (4.86–12.55) | ||
| At first month follow-up | ||||
| Mean ± SD | 5.43 ± 6.11 | 10.76 ± 7.50 | 0.023* | -22.61% |
| (95% CI) | (3.36–7.50) | (7.27–14.26) | ||
| Mean difference from base line ± SD | 1.07 ± 6.11 | 2.05 ± 10.32 | 0.521 | |
| (95% CI) | (-1.0–3.14) | (-1.44–5.55) | ||
| p-value | 0.310 | 0.243 | ||
| At 5th months follow-up | ||||
| Mean ± SD | 5.83 ± 5.79 | 10.46 ± 7.79 | 0.282 | -6.37% |
| (95% CI) | (3.87–7.79) | (6.24–14.67) | ||
| Mean difference from base line ± SD | 1.47 ± 05.79 | 1.75 ± 12.46 | 0.093 | |
| (95% CI) | (-2.47–5.96) | (-0.49–3.43) | ||
| p-value | 0.310 | 0.310 | ||
| Only Male P. argentipes | ||||
| At Baseline | ||||
| Mean ± SD | 2.29 ± 3.24 | 3.47 ± 4.61 | 0.177 | |
| (95% CI) | (1.20–3.39) | (1.91–5.03) | ||
| At first month follow-up | ||||
| Mean ± SD | 1.94 ± 3.08 | 5.85 ± 5.83 | 0.001** | -118.79% |
| (95% CI) | (0.90–2.99) | (3.88–7.82) | ||
| Mean difference from base line ± SD | -0.35 ± 6.11 | 2.38 ± 5.83 | 0.183 | |
| (95% CI) | (-1.39–0.70) | (0.41–4.35) | ||
| p-value | 0.265 | 0.232 | ||
| At 5th months follow-up | ||||
| Mean ± SD | 2.71 ± 2.77 | 5.12 ± 6.49 | 0.350 | -53.94% |
| (95% CI) | (1.77–3.64) | (1.66–7.32) | ||
| p-value | 0.719 | 0.608 | ||
| Only Female P. argentipes | ||||
| At Baseline | ||||
| Mean ± SD | 2.07 ± 2.91 | 5.24 ± 7.35 | 0.001** | |
| (95% CI) | (1.08–3.06) | (2.75–7.72) | ||
| At first month follow-up | ||||
| Mean ± SD | 3.49 ± 3.71 | 4.92 ± 4.83 | 0.318 | 83.89% |
| (95% CI) | (2.23–4.74) | (3.28–6.55) | ||
| Mean difference from baseline ± SD | 1.42 ± 3.71 | -0.32 ± 4.83 | 0.006** | |
| (95% CI) | (0.16–2.67) | (-1.96–1.31) | ||
| p-value | 0.031* | 0.999 | ||
| At 5th months follow-up | ||||
| Mean ± SD | 3.13 ± 3.44 | 5.33 ± 6.27 | 0.261 | 66.44% |
| (95% CI) | (1.96–4.29) | (3.21–7.45) | ||
| Mean difference from baseline ± SD | 0.42 ± 2.77 | 0.09 ± 6.27 | 0.007** | |
| (95% CI) | (-0.52–1.35) | (-2.03–2.21) | ||
| p-value | 0.164 | 0.377 | ||
| Only gravid female P. argentipes | ||||
| At Baseline | ||||
| Mean ± SD | 0.60 ± 0.85 | 2.19 ± 2.13 | <0.001** | |
| (95% CI) | (0.31–0.89) | (1.47–2.91) | ||
| At first month follow-up | ||||
| Mean ± SD | 1.35 ± 1.68 | 2.15 ± 2.16 | 0.106 | 132.56% |
| (95% CI) | (0.78–1.92) | (1.44–2.88) | ||
| Mean difference from base line ± SD | 0.75 ± 1.68 | -0.04 ± 2.16 | 0.002** | |
| (95% CI) | (0.18–1.32) | (-0.77–0.69) | ||
| p-value | 0.005** | 0.914 | ||
| At 5th months follow-up | ||||
| Mean ± SD | 1.00 ± 1.11 | 1.96 ± 2.71 | 0.264 | 106.98% |
| (95% CI) | (0.62–1.38) | (1.04–2.87) | ||
| Mean difference from base line ± SD | 0.40 ± 1.11 | -0.23 ± 2.71 | 0.001** | |
| (95% CI) | (0.02–0.78) | (-1.15–0.68) | ||
| p-value | 0.063 | 0.771 | ||
Significance at the 5% and 1% error level is indicated by * and **, respectively