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Table 4 Difference in parenting stress scores according to pregnancy intention

From: Impact of unintended pregnancy on maternal mental health: a causal analysis using follow up data of the Panel Study on Korean Children (PSKC)

  PSM IPTW
  β (SE) 95% CI P value β (SE) 95% CI P value
Parenting stress score       
Time of inquiry       
4 months postpartum 0.78 (0.40) 0.00–1.57 0.0502 1.15 (0.35) 0.47–1.82 0.0009
1 year postpartum 1.09 (0.41) 0.29–1.88 0.0076 1.24 (0.35) 0.56–1.92 0.0004
2 years postpartum 0.88 (0.43) 0.05–1.71 0.0387 1.35 (0.38) 0.61–2.08 0.0003
Pregnancy intention x time of inquiry§    0.8987    0.9955
Overall pregnancy intention 0.85 (0.21) 0.44–1.27 <0.0001 1.16 (0.30) 0.58–1.74 <0.0001
  1. §The interaction between pregnancy intention and time of inquiry. PSM: propensity score matching; IPTW: inverse probability of treatment weighted; CI: confidence interval.