Table 3.
Comparison of the association of PM10 and FEV1 growth in 4 study sites
| Author | Country (years) | No. | Baseline age | Exposure range (μg/m3) | FEV1 growth βa (95% CI) | Covariates |
|---|---|---|---|---|---|---|
| Horak 7 | Austria (1994–1997) | 975 | Grade 2–3 | 11–30 | −83.9 (NR) | sex, baseline height, change in height, atopy, ETS, baseline lung function. |
| Gauderman4 | USA (1993–2001) | 1759 | 10 years | 15–75 | −1.99 (0.31, −4.29) | height, BMI, BMI2, race, asthma, smoking, ETS, exercise (stratified by sex) |
| Rojas-Martinez15 | Mexico (1996–1999) | 3170 | 8–11 years | 53–97 | −7.9(−6.04, −9.88) | age, BMI, height, height by age, time outdoors, ETS, study phase (stratified by sex) |
| Roy et al (current study) | China (1993–1996) | 3273 | 6–12 years | 95–232 | −0.7(−0.4, −1.0) | baseline age, height, weight, sex, ETS, home ventilation, coal use, parental education, test date |
a
change in growth rate (ml/year) per 10 μg/m3 of PM10
NR indicates not reported; ETS, environmental tobacco smoke.