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Table 4 Results of the logistic regression analysis of the association between interpregnancy interval and unfavorable maternal essential fatty acid status

From: The association between interpregnancy interval and birth weight: what is the role of maternal polyunsaturated fatty acid status?

Interpregnancy interval (mo)   EPA1 DHA1 DGLA1 AA1
  N % women in 1st Quintile Mean ± SD concentration Odds ratio2(95% CI) % women in 1st Quintile Mean ± SD concentration Odds ratio2(95% CI) % women in 1st Quintile Mean ± (SD) concentration Odds ratio2(95% CI) % women in 5thQuintile Mean (±SD) concentration Odds ratio2(95% CI)
< 6 60 23.3 0.66 ± 0.47 1.58 (0.79-3.17) 18.3 4.77 ± 1.20 1.60 (0.51-2.22) 25.0 3.30 ± 0.69 1.22 (0.62-2.37) 25.0 9.34 ± 1.71 1.09 (0.52-2.29)
6-11 276 11.2 0.68 ± 0.44 0.66 (0.39-1.10) 18.3 4.70 ± 1.08 1.12 (0.71-1.77) 22.8 3.41 ± 0.75 1.08 (0.71-1.65) 21.7 9.28 ± 1.56 0.97 (0.52-2.29)
12-17 280 11.8 0.67 ± 0.38 0.69 (0.42-1.16) 19.2 4.85 ± 1.08 0.81 (0.50-1.31 17.9 3.54 ± 0.74 0.79 (0.51-1.23) 21.1 9.28 ± 1.47 0.79 (0.49-1.28)
18-23 223 16.1 0.70 ± 0.53 1 (ref) 14.6 4.75 ± 1.13 1 (ref) 21.5 3.40 ± 0.70 1 (ref) 22.9 9.35 ± 1.72 1 (ref)
≥ 24 820 26.6 0.58 ± 0.45 1.88 (1.28-2.78) 17.3 4.57 ± 1.14 1.40 (0.96-2.06) 18.9 3.46 ± 0.77 0.85 (0.59-1.22) 17.9 9.66 ± 1.76 1.53 (1.04-2.25)
Total 1659   0.63 ± 0.45    4.67 ± 1.12    3.45 ± 0.75    9.48 ± 1.68  
  1. 1 EPA, eicosapentaenoic acid (20:5 n-3); DHA, docosahexaenoic acid (22:6 n-3), DGLA; dihomo-γ-linolenic acid (20:3 n-6), AA; arachidonic acid (20:4 n-6).
  2. 2 Odds ratios resulting from logistic regression analysis of the association of interpregnancy interval with having an unfavorable blood concentration of either of four essential fatty acids. For each fatty acid, the quintile having strongest association with adverse pregnancy outcome (see Table 3) was designated as the unfavorable fatty acid outcome. (EPA: Quintile 1, DHA: Quintile 1, DGLA: Quintile 1, AA: Quintile 5).