Table 5.

Poisson regression model for the frequency of infantile eczema reported in the follow-up period related to ambient hazards and maternal fish intake

Predictors		IRR	z	p > z	95% CI
Maternal atopy (yes/no)		1.35	2.22	0.026	1.04–1.75
Gender of (child (girls)		0.78	−1.98	0.048	0.61–1.00
Postnatala ETS	PM2.5b
−	−	1.00	ref.
−	+	1.13	0.78	0.437	0.84–1.51
+	−	0.88	−0.46	0.643	0.52–1.49
+	+	1.55	1.89	0.058	0.99–2.44
Fish consumption inpregnancy
≤90 g per week	1.00	ref.
91–205 g per week	1.03	0.19	0.848	0.78–1.35
>205 g per week	0.72	−1.99	0.047	0.52–0.99

Regression estimates additionally adjusted for maternal age, education, exclusive breastfeeding >3 months and damp house. Ref. = Reference value.

^aPostnatal ETS: 0 = no smoking at home; 1 = reported cigarette smoking by at least one household member.

^bPrenatal PM₂.₅ exposure: 0 = PM₂.₅ ≤53 μg/m³; 1 = PM₂.₅ >53 μg/m³.