The Effect of Omega-3 Docosahexaenoic Acid Supplementation on Gestational Length: Randomized Trial of Supplementation Compared to Nutrition Education for Increasing n-3 Intake from Foods

Table 5

Selected preterm birth risk factors in supplemented subjects in 129 control, 124 supplemented with 300 mg DHA, and 116 supplemented with 600 mg DHA (mean ± 1 sem).

	Parity	Previous preterm birth
CON	2.3 ± 1.3	0.07 ± .33
300	2.5 ± 1.6	0.09 ± .32
600	2.6 ± 1.5	0.10 ± .39
	0.326	0.713

CON: control; 300: 300 mg DHA/day; 600: 600 mg DHA/day; NEd: nutrition education.