Table 4.
Summary of personal exposure after intervention.
| N | Control (median, IQR) | Improved Biomass (median, IQR) | Intervention effect1 (Percent, 95% CI) | LPG (median, IQR) | Intervention effect1 (Percent, 95% CI) | ||
|---|---|---|---|---|---|---|---|
| Mother CO (ppm) | All | 4652 | 0.82 (0.37 – 1.65 | 0.74 (0.33 – 1.47) | −10 (−18,−1) | 0.52 (0.20 – 1.16) | −42 (−48,−35) |
| Harmattan | 1894 | 0.76 (0.33 – 1.69) | 0.78 (0.32 – 1.58) | −3 (−17,12) | 0.56 (0.20 – 1.23) | −35 (−45,−22) | |
| Non-Harmattan | 2758 | 0.86 (0.38 – 1.61) | 0.73 (0.34 – 1.41) | −16 (−25,−5) | 0.49 (0.19 – 1.07) | −47 (−53,−39) | |
| Child CO (ppm) | All | 1903 | 0.48 (0.17 – 1.23) | 0.51 (0.17 – 1.10) | −6 (−21,11) | 0.39 (0.12 – 0.94) | −22 (−35,−6) |
| Harmattan | 598 | 0.47 (0.16 – 1.21) | 0.39 (0.12 – 1.01) | −16 (−37,14) | 0.38 (0.14 – 0.94) | −5 (−33,33) | |
| Non-Harmattan | 1303 | 0.48 (0.18 – 1.27) | 0.56 (0.21 – 1.13) | −1 (−19,21) | 0.42 (0.12 – 0.94) | −28 (−42,−11) | |
| Mother PM2.5 (μg/m³) | All | 1379 | 67 (46 – 97) | 67 (44 – 94) | −4 (−12,3) | 45 (32 – 65) | −32 (−38,−26) |
| Harmattan | 365 | 80 (57 – 106) | 78 (59 – 99) | 1 (−12,11) | 72 (56 – 96) | −11 (−22,1) | |
| Non-Harmattan | 1014 | 63 (41 – 87) | 61 (40 – 90) | −2 (−11,7) | 38 (29 – 53) | −37 (−43,−31) |
1
Estimates are derived from the models described in Equation 1 for Improved Biomass or LPG, respectively. Estimates refer to the percent difference in mean exposure across the study arm during the post-intervention period.