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Table 4 PR and 95% CI for preterm birth, low birthweight, and small for gestational age in women with a breast cancer history

From: Prevalence of preterm, low birthweight, and small for gestational age delivery after breast cancer diagnosis: a population-based study

  Preterm birth (<37 weeks) Low birthweight (<2500 g) Small for gestational age (<10th percentilec)
  n Age adjusteda PR (95% CI) Multivariableb
PR (95% CI)
n Age adjusteda PR (95% CI) Multivariableb PR (95% CI) n Age adjusteda
PR (95% CI)
Multivariableb
PR (95% CI)
Chemotherapy
 No 38 1.00 1.00 28 1.00 1.00 26 1.00 1.00
 Yes 70 1.86 (1.31–2.64) 1.78 (1.25–2.53) 48 1.85 (1.21–2.83) 1.68 (0.94–3.03) 42 1.80 (1.13–2.85) 1.72 (0.94–3.15)
Time between diagnosis and delivery
 <2 years 62 2.24 (1.34–3.74) 2.19 (1.31–3.67) 38 1.47 (0.87–2.51) 1.37 (0.58–3.21) 26 0.88 (0.51–1.53) 0.89 (0.47–1.68)
 2–4.9 years 30 1.11 (0.63–1.95) 1.11 (0.63–1.96) 20 0.73 (0.40–1.33) 0.68 (0.28–1.64) 21 0.66 (0.38–1.17) 0.57 (0.30–1.08)
 ≥5 years 16 1.00 1.00 18 1.00 1.00 21 1.00 1.00
Race/ethnicity
 White, non-Hispanic 68 1.00 1.00 35 1.00 1.00 27 1.00 1.00
 Black, non-Hispanic 40 1.00 (0.71–1.42) 0.97 (0.65–1.45) 41 2.02 (1.33–3.05) 1.76 (1.08–2.86) 41 2.60 (1.66–4.08) 2.55 (1.53–4.24)
Parity
 Primiparous (1 birth) 28 1.00 1.00 22 1.00 1.00 21 1.00 1.00
 Multiparous (≥2 births) 80 1.27 (0.86–1.86) 1.10 (0.74–1.64) 54 1.09 (0.69–1.72) 0.78 (0.47–1.27) 47 0.94 (0.58–1.51) 0.80 (0.48–1.32)
  1. aAdjusted for mother’s age at infant delivery
  2. bAdjusted for mother’s age at infant delivery, education, marital status, parity, race/ethnicity, and smoking
  3. cBirthweight of infant is below the tenth percentile for the infant’s gestational age and sex
  4. CI confidence interval, PR prevalence ratio