. 2013 Feb 8;13:123. doi: 10.1186/1471-2458-13-123

Table 2.

Prevalence and odds ratios of exposures at 2 years of age

	Intervention cohort N = 1374	Control cohort N = 4780	Odds ratio^a(95%CI)
	n (%)	n (%)	Crude	Adjusted^b
Smoking mother at 2 years of age	132 (9.8)	879 (19.0)	0.46	0.47
Smoking mother at 2 years of age	132 (9.8)	879 (19.0)	(0.38-0.56)	(0.39-0.58)
Smoking father at 2 years of age	143 (11.2)	751 (17.9)	0.57	0.56
Smoking father at 2 years of age	143 (11.2)	751 (17.9)	(0.47-0.69)	(0.46-0.68)
Indoor dampness index	53 (3.9)	179 (3.8)	1.02	1.09
Indoor dampness index	53 (3.9)	179 (3.8)	(0.75-1.39)	(0.79-1.51)
1.2 g n-3 PUFA four times a week or more	582 (42.6)	1591 (33.6)	1.46	1.42
1.2 g n-3 PUFA four times a week or more	582 (42.6)	1591 (33.6)	(1.29-1.66)	(1.25-1.62)
Any kind of fish once a week or more	1011 (73.6)	3369 (70.6)	1.16	1.13
Any kind of fish once a week or more	1011 (73.6)	3369 (70.6)	(1.02-1.33)	(0.98-1.30)
Oily fish once a week or more	687 (50.0)	1667 (34.9)	1.86	1.83
Oily fish once a week or more	687 (50.0)	1667 (34.9)	(1.65-2.11)	(1.61-2.09)
Lean fish once a week or more	836 (61.3)	3062 (64.6)	0.87	0.85
Lean fish once a week or more	836 (61.3)	3062 (64.6)	(0.76-0.98)	(0.74-0.97)

^aFor intervention cohort versus control cohort.

^bAdjusted for birthweight, maternal atopy, RS-virus infection, maternal health care centre, and the proportion of participants from each cohort in each public health centre.