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Table 2 Energy intakes calculated from 7-day diaries and food frequency questionnaires in the two groups of infertile women.

From: Dietary intakes in infertile women a pilot study

Variables GROUP A1
n = 10
(mean ± sd)
GROUP B2
n = 8
(mean ± sd)
7-day food diary   
Energy (kcal/24 h) 1396.1 ± 435.1 1545.4 ± 432.9
Energy intake/BMR 1.10 ± 0.36 1.04 ± 0.29
LERs (% subjects) 60.0 75.0
Food frequency questionnaire   
Energy (kcal/24 h) 2010.1 ± 492.1 a 2471.2 ± 676.1 a
Energy intake/BMR 1.58 ± 0.44 b 1.67 ± 0.46 b
LERs (% subjects) 20.0 12.5
  1. Energy intake/BMR: ratio of reported energy intake to basal metabolic rate; LERs = low energy reporters
  2. 1 hypothalamic amenorrhea; 2 polycystic ovary syndrome
  3. a p < 0.05 between the mean energy intakes BMR calculated from the two instruments (7-day food diary vs. food frequency questionnaire)
  4. b p < 0.05 between the energy intake/BMR calculated from the two instruments (7-day food diary vs. food frequency questionnaire)