Table 2.

Associations between consumption of organic food groups and risk of pre-eclampsia among 28 192 pregnant women in the Norwegian Mother and Child Cohort Study 2002–2008

Organic food group	Total n	Pre-eclampsia n (%)	Unadjusted OR (95% CI)	Adjusted for consumption of any organic food group, (sum index low/frequent) OR (95% CI)
	28 192	1491 (5.3)
Organic consumption in any food group (sum index)
Low	25 699	1368 (5.3)	1
Frequent	2493	123 (4.9)	0.92 (0.76 to 1.12)
Vegetables
Low	26 241	1410 (5.4)	1	1
High	1951	81 (4.2)	0.76 (0.61 to 0.96)	0.68 (0.50 to 0.92)
Fruit
Low	26 416	1404 (5.3)	1	1
High	1776	87 (4.9)	0.92 (0.73 to 1.15)	0.96 (0.70 to 1.32)
Cereals
Low	26 403	1395 (5.3)	1	1
High	1789	96 (5.4)	1.02 (0.82 to 1.26)	1.18 (0.87 to 1.61)
Milk/dairy
Low	26 155	1383 (5.3)	1	1
High	2037	109 (5.4)	1.03 (0.83 to 1.24)	1.14 (0.87 to 1.50)
Eggs
Low	25 602	1363 (5.3)	1	1
High	2590	128 (4.9)	0.93 (0.77 to 1.11)	0.95 (0.76 to 1.18)
Meat
Low	27 037	1425 (5.3)	1	1
High	1155	66 (5.7)	1.09 (0.84 to 1.40)	1.28 (0.92 to 1.79)