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Table 2 Folate intake from diet and supplements

From: Retracted: Folic acid supplementation, dietary folate intake during pregnancy and risk for spontaneous preterm delivery: a prospective observational cohort study

  All Spontaneous term delivery Spontaneous PTD1
Folate (μg/d) Median IQR Median IQR Median IQR
All women n = 65668 n = 50301 n = 1628
Diet 155 (123–193) 155 (123–193) 155 (123–194)
Supplements 67 (0–400) 57 (0–400) 100 (0–400)
Total intake 266 (154–543) 262 (153–542) 280 (154–557)
Supplement users n = 35510 n = 27007 n = 891
Diet 158 (127–196) 158 (127–196) 159 (128–197)
Supplements 400 (200–429) 400 (200–429) 400 (200–457)
Total intake 530 (354–636) 530 (354–635) 540 (369–651)
  1. Folic acid supplementation, dietary and total folate intake during the first half of pregnancy (FFQ data) for all 65,668 participants, as well as in folic acid supplement users (n = 35,510), from the Norwegian Mother and Child Cohort Study (2002–2009).
  2. 1Preterm delivery defined as delivery between 22+0-36+6 weeks of gestation.