Table 1 Children from the 27 participating schools and the 7 schools in the Pointe-à-Pitre agglomeration
From: Impact of close-proximity air pollution on lung function in schoolchildren in the French West Indies
Variables | Participating schools including 1,436 children | Participating schools in Pointe-à-Pitre agglomeration including 506 children | ||
|---|---|---|---|---|
% data provided | Mean ± SD or Frequency | % data provided | Mean ± SD or Frequency | |
Socio-demographic factors | ||||
Age | 100.0 | 10.3 ± 0.8 | 100.0 | 10.5 ± 0.7 |
Sex (male) | 100.0 | 46.5 | 100.0 | 47.4 |
BMI | 99.2 | 98.6 | ||
Low | 6.7 | 7.4 | ||
Normal | 72.0 | 70.8 | ||
High | 21.3 | 21.8 | ||
Family situation of children | 88.6 | 88.3 | ||
with both parents | 52.4 | 48.5 | ||
with mother | 43.4 | 47.9 | ||
with father | 2.0 | 2.7 | ||
Other | 2.2 | 0.9 | ||
Educational level of parents | 76.9 | 76.1 | ||
Primary or secondary | 63.5 | 64.2 | ||
High school and university | 36.5 | 35.8 | ||
Environnemental factors | ||||
Relative humidity (unit: %) | 100.0 | 68.6 ± 15.3 | 100.0 | 59.6 ± 15.2 |
Outside temperature (unit: °C) | 100.0 | 27.8 ± 1.9 | 100.0 | 28.1 ± 1.4 |
Rainy saison (%) | 100.0 | 44.5 | 100.0 | 35.4 |
Exposure to tobacco smoke (%) | 57.9 | 14.3 | 61.7 | 12.2 |
Medical history | ||||
Asthma (%) | 100.0 | 15.5 | 100.0 | 16.6 |
Atopy (%) | 100.0 | 24.5 | 100.0 | 23.7 |
Atopic dermatitis (%) | 100.0 | 2.4 | 100.0 | 3.6 |
Drugs against asthma before clinical examination (%) | 100.0 | 5.2 | 100.0 | 7.1 |
Family history of allergy (%) | 100.0 | 24.3 | 100.0 | 25.5 |
Premature birth (%) | 81.8 | 27.2 | 91.3 | 31.8 |
Lung function | ||||
Peak expiratory flow before run (unit: L/min) | 97.1 | 271.5 ± 47.8 | 96.8 | 274.2 ± 49.9 |
Variation of peak expiratory flow after run (unit: %) | 80.6 | −1.1 ± 9.9 | 78.7 | −0.5 ± 12.0 |