Table 1 Characteristics of participants classified as low and high macrophage particulate burden
From: Household air pollution and the lung microbiome of healthy adults in Malawi: a cross-sectional study
|  | Low particulate (n = 23) | High particulate (n = 21) | p |
|---|---|---|---|
Age, mean years (SD) | 29.2 (7.7) | 34.1 (6.8) | 0.03 |
Sex, female (%) | 9 (39) | 12 (57) | 0.37 |
Ethnicity – African, n (%) | 23 (100) | 21 (100) | - |
BMI, mean (SD) | 22.4 (4.2) | 22.4 (2.6) | 0.97 |
FEV1 % predicted, mean (SD) | 96.2 (15.2) | 98.2 (9.7) | 0.62 |
FVC % predicted, mean (SD) | 96.3 (15.1) | 100.4 (9.5) | 0.31 |
Cooking, n (%) | |||
  Electricity only | 2 (8.7) | 0 (0) | 0.60 |
  Charcoal stove | 14 (60.9) | 13 (61.9) | . |
  Wood | 7 (30.4) | 8 (38.1) | . |
Lighting, n (%) | |||
  Electricity only | 6 (26.1) | 4 (19.1) | 0.11 |
  Candle mostly | 10 (43.5) | 4 (19.1) | . |
  Paraffin mostly | 7 (30.4) | 13 (61.9) | . |
BAL differential count, % (SD) | |||
  Macrophage | 95.5 (4.6) | 95.3 (3.2) | 0.85 |
  Lymphocyte | 4.0 (4.1) | 4.2 (2.6) | 0.87 |
Macrophage carbon, % (SD) | 0.1 (0.1) | 2.5 (1.8) | <0.0001 |