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Table 5 Results of regression analyses of interpregnancy interval and pregnancy outcome (birth weight and SGA) adjusted for maternal LCPUFAs concentrations in early pregnancy 1

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

Interpregnancy interval (mo)   Birth weight Small for Gestational Age (SGA)
   Unadjusted Adjusted for LCPUFAs2 Unadjusted Adjusted for LCPUFAs2
  n Mean ±SD Beta ± SE Beta ± SE Percentage (%) Odds ratio (95%CI) Odds ratio (95%CI)
<6 60 3500 ± 489 −206.7 ± 73.13 −193.4 ± 72.13 18.3 2.05 (0.93-4.51) 1.92 (0.86-4.28)
6-11 276 3628 ± 478 −78.5 ± 45.3 −84.1 ± 44.8 9.1 0.91 (0.50-1.66) 0.93 (0.51-1.72)
12-17 280 3613 ± 483 −94.1 ± 45.14 −115.0 ± 44.6 9.3 0.94 (0.52-1.70) 0.93 (0.51-1.72)
18-23 223 3707 ± 499 1.0 1.0 .9.9 1.00 1.00
≥24 820 3552 ± 519 −154.7 ± 38.03 −135.4 ± 37.83 14.8 1.58 (0.98-2.56) 1.43 (0.88-2.33)
  1. 1 Linear regression analysis for birth weight as dependent variable and interpregnancy interval in categories as independent variable; logistic regression analysis for SGA as dependent and interpregnancy interval in categories as independent variable. SGA was defined as birth weight < 10th percentile for gestational age based on sex- and parity-specific standards. n=1659 mother-infant pairs. None of the selected maternal and infant characteristics acted as confounding factors.
  2. 2 Analysis adjusted for all four selected fatty acids together.
  3. 3 Significantly different from reference category (18–23 mo) p<0.005.
  4. 4 Significantly different from reference category (18–23 mo) p<0.05.