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Table 5 Sensitivity analyses for the associations between IPC-BMI and infant outcomes, Texas 2006–2012

From: Interpregnancy change in body mass index and infant outcomes in Texas: a population-based study

Outcome IPC-BMI No Diabetes or HTNa
Nd
Same Father
Nd
Consecutive Birthsb
Nd
1st and 2nd Births
Nd
Outcome Not
Present in Sibling
Nd
Excluding GWGc
Nd
aOR 95% CI aOR 95% CI aOR 95% CI aOR 95% CI aOR 95% CI aOR 95% CI
LGAe   205/1980 185/1462 206/1797 86/893 167/1983   
  <−1 0.80 (0.50, 1.28) 0.69 (0.41, 1.14) 0.84 (0.52, 1.36) 0.82 (0.37, 1.79) 0.78 (0.47, 1.30)   
  −1 to < 0 0.56 (0.32, 1.01) 0.67 (0.38, 1.18) 0.84 (0.49, 1.43) 0.97 (0.43, 2.21) 0.63 (0.34, 1.17)   
  0 to < 1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)   
  1 to < 2 1.19 (0.74, 1.92) 1.26 (0.76, 2.08) 1.33 (0.81, 2.19) 1.30 (0.58, 2.89) 1.14 (0.66, 1.97)   
  2 to < 3 1.49 (0.90, 2.48) 1.28 (0.72, 2.25) 1.81 (1.07, 3.07) 1.56 (0.69, 3.53) 1.49 (0.85, 2.61)   
  ≥3 0.96 (0.61, 1.49) 0.79 (0.49, 1.27) 1.07 (0.69, 1.68) 1.16 (0.58, 2.34) 1.07 (0.67, 1.70)   
SGAf   176/2010 109/1539 158/1846 82/897 140/1987   
  <−1 1.51 (0.91, 2.49) 1.50 (0.77, 2.92) 1.92 (1.14, 3.22) 1.28 (0.61, 2.69) 1.98 (1.11, 3.52)   
  −1 to < 0 1.56 (0.92, 2.67) 1.63 (0.81, 3.27) 1.54 (0.87, 2.72) 1.05 (0.47, 2.31) 1.60 (0.84, 3.06)   
  0 to < 1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)   
  1 to < 2 1.49 (0.88, 2.50) 1.90 (0.98, 3.69) 1.34 (0.75, 2.38) 0.72 (0.31, 1.72) 1.87 (1.02, 3.44)   
  2 to < 3 1.85 (1.05, 3.24) 2.11 (1.03, 4.33) 2.10 (1.16, 3.82) 2.31 (1.11, 4.80) 2.55 (1.36, 4.81)   
  ≥3 0.92 (0.55, 1.53) 1.33 (0.71, 2.50) 0.91 (0.53, 1.57) 0.65 (0.31, 1.36) 1.52 (0.87, 2.66)   
PTBg   220/1970 157/1494 202/1805 86/896 181/1957 247/2116
  <−1 1.82 (1.20, 2.78) 1.84 (1.12, 3.02) 1.94 (1.25, 3.03) 4.05 (1.86, 8.80) 1.46 (0.92, 2.33) 1.83 (1.23, 2.72)
  −1 to < 0 1.16 (0.72, 1.87) 0.95 (0.53, 1.70) 1.34 (0.82, 2.19) 2.56 (1.12, 5.83) 1.12 (0.67, 1.88) 1.25 (0.79, 1.98)
  0 to < 1 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference) 1.00 (Reference)
  1 to < 2 1.11 (0.69, 1.78) 1.08 (0.61, 1.91) 1.07 (0.64, 1.78) 2.45 (1.07, 5.60) 1.19 (0.72, 1.97) 1.24 (0.79, 1.94)
  2 to < 3 0.63 (0.33, 1.20) 0.66 (0.31, 1.41) 0.58 (0.28, 1.22) 0.92 (0.29, 3.00) 0.60 (0.29, 1.21) 0.64 (0.34, 1.19)
  ≥3 0.85 (0.55, 1.31) 1.12 (0.68, 1.84) 0.97 (0.62, 1.53) 1.95 (0.90, 4.24) 0.82 (0.51, 1.31) 1.00 (0.67, 1.49)
  1. Abbreviations: aOR adjusted odds ratio, CI confidence interval, GWG gestational weight gain, HTN hypertension, IPC-BMI interpregnancy change in body mass index (kg/m2), LGA large for gestational age, PTB preterm birth, SGA small for gestational age
  2. aPregestational or gestational diagnosis
  3. bAnalyses adjusted for birth order in addition to the covariates noted for each outcome
  4. cPTB analysis only
  5. dN, # affected / # unaffected
  6. eAdjusted for the following maternal variables: prepregnancy BMI at sibling pregnancy, race/ethnicity, smoking, gestational weight gain, height, age, and education
  7. fAdjusted for the following maternal variables: prepregnancy BMI at sibling pregnancy, race/ethnicity, smoking, gestational weight gain, and height
  8. gAdjusted for the following maternal variables: prepregnancy BMI at sibling pregnancy, race/ethnicity, smoking, and gestational weight gain