Table 1 Characteristics of the study population
| Â | Sumve DDH | Biharamulo DDH | Â | Rubya DDH | Â |
|---|---|---|---|---|---|
| Â | Â | Before policy change | After policy change | Before policy change | After policy change |
Study period | Sep '09 - Jan '10 | Sep '09 - Oct '09 | Jan '10 - Feb '10 | Sep '09 - Oct '09 | Oct '09 - Feb '10 |
Number of observations | 362 | 360 | 135 | 250 | 501 |
Age | Â | Â | Â | Â | Â |
   Median (IQR) | 15.0 (9.0 - 24.0) | 15.0 (9.0 - 27.0) | 14.5 (8.0 - 25.8) | 12.0 (8.8 - 24.0) | 14.0 (8.0 - 24.0) |
Temperature | Â | Â | Â | Â | Â |
   Mean (sd) | 37.5 (1.0) | 37.0 (1.0) | 37.4 (1.0) | 37.8 (1.0) | 37.7 (1.1) |
   Fever (≥37.8°C), % (n/N) | 39.2 (135/344) | 19.1 (68/356) | 29.2 (38/130) | 48.4 (121/250) | 46.9 (235/501) |
Reported use of bed net, % (n/N) | 95.8 (340/355) | 98.9 (356/360) | 95.5 (128/134) | 95.6 (239/250) | 95.2 (477/501) |
Reported anti-malarial use in preceding two weeks, % (n/N) | 26.5 (95/358) | 74.0 (361/488) | Â | 6.4 (48/751) | Â |
Number of serum samples collected | 308 | 300 | Â | 320 | Â |