Indoor Air Quality and Respiratory Health among Malay Preschool Children in Selangor

Table 5

Factors influenced the abnormality of FEV₁% among study respondents after controlling all the confounders.

Independent variables	β	S.E	value	OR^b	95% CI
Constant	0.501	0.529	0.343
PM2.5	−0.774	0.481	0.108	0.46	0.18–1.18
PM10	−0.233	0.505	0.645	0.80	0.30–2.13
VOCs	−0.042	0.473	0.929	0.96	0.38–2.43
CO2	−0.512	0.511	0.317	0.60	0.22–1.63
CO	1.648	0.545	0.002^*	5.20	1.79–15.11
Indoor smoking	−0.099	0.497	0.842	0.91	0.34–2.40
Years living in the vicinity	−3.217	0.681	<0.001^**	0.04	0.01–0.15

Adjusted for socioeconomic factor.
, 95% CI = 95% confidence interval, = regression coefficient, S.E = standard error.
Nagelkerke square = 0.418.
^*Significant at ; ^**significant at .