Table A2.
Summary of results from studies on household biomass smoke exposure and allergic or respiratory outcomes in pediatric populations.
| Study | Country | Exposure | Outcome | Measure of Association (95% CIs) |
|---|---|---|---|---|
| This study | Guatemala (rural) | Open fire vs. chimney stove | Asthma symptoms | OR = 2.42 (1.11–5.48) |
| This study | Guatemala (rural) | Open fire vs. chimney stove | Rhinitis symptoms | OR = 2.01 (1.13–3.58) |
| This study | Guatemala (rural) | Open fire vs. chimney stove | Eczema | OR = 1.02 (0.92–1.12) |
| This study | Guatemala (rural) | Biomass-related cumulative CO (ppm-year) | Rhinitis symptoms | OR = 1.09 (1.02–1.18) |
| This study | Guatemala (rural) | Open fire vs. chimney stove | Sensitization to aeroallergen | OR ranges from 0.72 to 1.67, p > 0.05 |
| Honicky et al. [35] | USA | Wood stove vs. gas stove | Respiratory illness symptoms | p < 0.001 |
| Morris et al. [36] | USA | Wood stove | Lower respiratory tract infection | OR = 4.85 (1.69–12.91) |
| Von Mutius et al. * [20] | Germany (rural) | Coal/wood heating | Sensitization to aeroallergen | OR = 0.67 (0.49–0.93) |
| Von Mutius et al. * [20] | Germany (rural) | Coal/wood heating | Hay fever | OR = 0.57 (0.34–0.98) |
| Kilpelainen, M. et al. [21] | Germany | Wood stove heating | Allergic rhinitis | OR = 0.96 (0.77–1.20) |
| Vicedo-Cabrera, A.M. et al. [22] | Spain | Biomass cooking | Eczema | OR = 1.51 (0.60–3.81) |
| Vicedo-Cabrera, A.M. et al. [22] | Spain | Biomass heating | Eczema | OR = 1.02 (0.82–3.25) |
| Schei et al. [23] | Guatemala | Open fire cooking | Any asthma symptoms | OR = 3.4 (1.3–8.5) |
| Schei et al. [23] | Guatemala | Open fire cooking | Asthma diagnosis | OR =1.8 (0.76–4.19) |
| Oluwole et al. [15] | Nigeria (rural) | Biomass cooking | Asthma symptoms | OR =1.33 (1.05–1.69) |
| Thacher et al. [16] | Nigeria | Biomass cooking | Asthma symptoms | OR = 2.36, (0.66–8.44) |
* The Kilpelainen et al. paper commented on the Von Mutius et al. paper’s potential confounding by lifestyle and living environment, and suggested that the negative association disappeared after adjusting for these factors in another German population.