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Table 2 Association between pregnancy planning status and neonatal outcome

From: Pregnancy planning, smoking behaviour during pregnancy, and neonatal outcome: UK millennium cohort study

  Neonatal outcome Neonatal outcome in    
  in mothers who mothers who did not Crude1 Adjusted model 1 * Adjusted model 2 **
  planned pregnancy plan pregnancy    
n/N (%) n/N (%) OR (95% CI) OR (95% CI) OR (95% CI)
Low birth weight (<2.5 kg) 541/10,394 (5.21) 561/7,762(7.22) 1.42 (1.22-1.65) 1.27 (1.06-1.51) 1.24 (1.04-1.48)
Prematurity (< 37 weeks gestation) 653/10,359 (6.30) 626/7,675 (8.16) 1.32 (1.15-1.52) 1.23 (1.05-1.45) 1.24 (1.05-1.45)
  1. 1The baseline group was women who had planned their pregnancy.
  2. *All adjusted for: mother’s age, deprivation, relationship status, fertility treatment. Prematurity also adjusted for BMI.
  3. **Adjusted for the same variables as model 1 plus smoking.