Table 2 Results of fever surveillance in villages with Interceptor LNs, untreated nets and no net during pre- intervention and intervention phases
Attributes | Interceptor net | Untreated net | No Net | P- value |
|---|---|---|---|---|
(Pop. 5316) | (Pop. 4802) | (Pop. 3865) | ||
Pre-intervention (Sep-Nov 2006) | ||||
No. of slides collected | 902 | 447 | 377 | |
P. vivax | 0 | 5 | 3 | |
P. falciparum | 76 | 26 | 9 | |
Slide Positivity Rate (SPR) | 8.4 | 6.9 | 3.2 | χ2=11.4; p=0.003 |
Parasite incidence/1000 population | 14.3 | 6.6 | 3.1 | |
Intervention (Dec 2006-Aug 2007) | ||||
No. of slides collected | 2348 | 1836 | 1151 | |
P. vivax | 0 | 17 | 21 | |
P. falciparum | 87 | 102 | 150 | |
Slide Positivity Rate (SPR) | 3.7 | 6.5 | 11 | χ2=81.5; p=0.000 |
Parasite incidence/1000 population | 16.4 | 24.8 | 44.2 | |