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Table 3 The result of log-binomial regression analysis for each of the adverse birth outcomes

From: Association of premarital pregnancy with adverse birth outcomes and its characteristics in Japan

Outcomes and the status of premarital pregnancy

Adjusted RR (95% CI)a

p-value

Preterm birth

 Postmarital pregnancy

Reference

 

 Premarital pregnancy

1.65 (1.58, 1.72)

 < 0.001

TLBW

 Postmarital pregnancy

Reference

 

 Premarital pregnancy

1.17 (1.12, 1.22)

 < 0.001

SGA

 Postmarital pregnancy

Reference

 

 Premarital pregnancy

1.12 (1.08, 1.17)

 < 0.001

  1. TLBW term low birthweight, SGA small-for-gestational-age, RR risk ratio, CI confidence interval
  2. aMaternal age group, household occupation, maternal occupation, paternal occupation, and birth year were adjusted
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Contraception and Reproductive Medicine

ISSN: 2055-7426

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