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Tables 4 Univariate and multivariate β coefficients of standard regression analysis with 95% confidence intervals of respirable dust in 10 schools located1-2 km and ≥5 km from mine dumps in Gauteng and North West provinces, South Africa between 1 and 31 of October 2012

From: Indoor and outdoor PM10 levels at schools located near mine dumps in Gauteng and North West Provinces, South Africa

 

Univariate analysis

Multivariate analysisa

β coefficients

95% CI

P-value

β coefficients

95% CI

P-value

Independent variables

 PM10 outdoor concentration

0.56

0.31–0.80

<0.001

0.27

0.05–0.49

0.018

 S02 outdoor concentration

−0.31

−0.57– − 0.05

0.018

−11.59

−18.57– − 5.60

0.001

 School location

−0.93

−1.15– − 0.72

<0.001

−0.95

−1.18– − 0.71

<0.001

 Day of sampling

−0.11

−0.15– − 0.06

<0.001

−

−

−

  1. aModel adjusted for all variables in this table, except date of sampling and number of asthmatic per school
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BMC Public Health

ISSN: 1471-2458

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