Table 6. Multivariable analysis between eczema and covariates in the three age groups.

		3 month group			18 month group			36 month group
		aOR	95%CI	P	aOR	95%CI	P	aOR	95%CI	P
Gender
	Female	reference	―	―	reference	―	―	reference	―	―
	Male	1.24	1.18–1.30	<0.001	1.10	1.05–1.15	<0.001	1.04	1.00–1.09	0.080
Birth season
	Spring (Mar. to May)	reference	―	―	reference	―	―	reference	―	―
	Summer (Jun. to Aug.)	1.01	0.94–1.09	0.719	1.21	1.13–1.29	<0.001	0.96	0.90–1.03	0.269
	Autumn (Sep. to Nov.)	1.92	1.79–2.06	<0.001	1.56	1.47–1.67	<0.001	1.02	0.95–1.09	0.568
	Winter (Dec. to Feb.)	1.93	1.80–2.08	<0.001	1.40	1.31–1.49	<0.001	1.07	1.00–1.14	0.050
Birth order
	First	reference	―	―	reference	―	―	reference	―	―
	Second and after	0.78	0.74–0.82	<0.001	0.92	0.88–0.96	<0.001	0.95	0.91–1.00	0.034
Paternal atopic dermatitis
	No	reference	―	―	reference	―	―	reference	―	―
	Yes	1.78	1.66–1.90	<0.001	2.26	2.12–2.41	<0.001	2.23	2.08–2.39	<0.001
Maternal atopic dermatitis
	No	reference	―	―	reference	―	―	reference	―	―
	Yes	1.66	1.57–1.77	<0.001	2.05	1.93–2.17	<0.001	2.28	2.15–2.41	<0.001