Table III.

Determinants of different allergen concentrations in children’s sleep areas (Asp f1 and HDM) and play areas (Bla g1) predicted using multivariate stepwise regression models.

Dependent variable (Model adjusted R2)	Home characteristics (Predictor variables)	Coefficient	95% CI	p-value
Aspf1 (0.2808)	flat / duplex home	0.16	0.07–0.26	0.001*
	opening windows	−0.48	−0.72–−0.24	<0.001*
	comforter	0.07	<0.01–0.15	0.065
Derf1 (0.0529)	cement floor	2.51	0.17–4.86	0.036*
	wall-to-wall carpet	1.89	0.01–3.77	0.048*
	cotton blanket	1.94	−0.36–4.24	0.097
Derp1 (0.1363)	opening windows	16.80	0.43–33.17	0.044*
	comforter	−36.95	−56.82 –−17.08	<0.001*
	Wool blankets	−39.18	−58.82 – −1954	<0.001*
	cotton blanket	−30.83	−51.33 – −10.34	0.004*
	blend of blankets	−30.88	−51.20 – −10.57	0.003*
Blag1 (0.0511)	smooth floors	0.67	−0.56 – 1.40	0.070
	visible roof or ceiling mould	−0.71	−1.37 – −0.04	0.038*

Variables included in the models: type of house, house age, opening windows, moisture and dampness signs, fungal growth, bedding, heating and presence of a ceiling.

Table showing variables with a p-value of <0.1 on the multivariate analysis

All models adjusted for season and region (south or north Durban)

^*p<0.05