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Table 4 Associations between BMI and fetal outcomes

From: Impact of maternal body mass index on outcomes of singleton pregnancies after assisted reproductive technology: a 14-year analysis of the US Nationwide Inpatient Sample

Variables

Univariate OR (95% CI)

Adjusted OR a (95% CI)

BMI 30–39 kg/m2 (vs. < 30 kg/m2)

BMI 40 + kg/m2 (vs. < 30 kg/m2)

BMI 30–39 kg/m2 (vs. < 30 kg/m2)

BMI 40 + kg/m2 (vs. < 30 kg/m2)

Fetal outcomes

 Stillbirth and IUFD

1.18 (0.59, 2.34)

2.02 (0.99, 4.12)

1.12 (0.56, 2.26)

1.83 (0.88, 3.80)

 IUGR

1.03 (0.70, 1.52)

1.00 (0.64, 1.58)

1.02 (0.68, 1.53)

0.96 (0.61, 1.52)

 Premature birth

0.97 (0.72, 1.30)

0.89 (0.64, 1.24)

0.89 (0.64, 1.23)

0.86 (0.62, 1.21)

 Birth defect

1.12 (0.65, 1.96)

0.79 (0.37, 1.69)

1.18 (0.68, 2.07)

0.63 (0.28, 1.41)

 Abortion

2.10 (1.10, 4.01)

1.18 (0.43, 3.21)

1.88 (0.93, 3.78)

1.13 (0.40, 3.17)

  1. BMI, body mass index; CI, confidence interval; OR, odds ratio; IUFD, intrauterine fetal death; IUGR, intrauterine growth restriction
  2. P-values < 0.05 are shown in bold
  3. a Adjusted for age, race, household income, primary payer, smoking, PCOS, number of comorbidities, hospital bed size, hospital location/teaching status, and hospital region
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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