Table 3. Summary of pre-intervention household SI and non-SI HAP concentrations (N = 2980 for PM2.5; N = 2013 for CO).
| Mean (95% CI) | Median (IQR) | |
|---|---|---|
| PM2.5 Metrics | ||
| SI Conc. (μg/m3) | 3469 (3350, 3588) | 2700 (1408, 4488) |
| Non-SI Conc. (μg/m3) | 268 (252, 284) | 139 (19, 399) |
| SI Time (h) | 8.1 (8.0, 8.2) | 7.8 (5.8, 10.4) |
| SI Time (%) | 37 (37, 38) | 36 (27, 48) |
| CO Metrics | ||
| SI Conc. (ppm) | 21.8 (21.1, 22.6) | 16.7 (8.9, 29.4) |
| Non-SI Conc. (ppm) | 1.9 (1.8, 2.0) | 1.1 (0.6, 2.2) |
| SI Time (h) | 9.7 (9.6, 9.8) | 10.0 (7.4, 12.3) |
| SI Time (%) | 45 (44, 46) | 46 (34, 57) |