Table 1 Characteristics of study participants
From: Exhaled carbon monoxide: a non-invasive biomarker of short-term exposure to outdoor air pollution
Characteristic | Summary |
|---|---|
Age (years) - mean (SD) | 42.2 (8.4) |
Income per day ($)a – mean (SD) | 7.3(2.7) |
Marital status n (%) | |
Married | 150(98) |
Unmarried (single or widow) | 3(2) |
Education level n (%) | |
None | 22(14.4) |
Primary school | 75(49.1) |
College | 21(13.7) |
High school | 32(20.9) |
University | 3(1.9) |
Biomass exposure n (%) | 144(94.7) |
Exposure to tobacco smoke n (%) | 51(33.3) |
Any co-morbidity n (%) | 29(19) |
Abnormal Lung function n (%) | 23(15) |