From: Breastfeeding in primiparous women with congenital heart disease − a register study
Variable | Univariable logistic regression | Multivariable logistic regression | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Initial model, including n = 376 (65%) | Final model, including n = 378 (65%) | |||||||||||
Wald | OR | 95% CI | p-value | Wald | OR | 95% CI | P-value | Wald | OR | 95% CI | P-value | |
Higher age | 0.2 | 1.0 | 0.9, 1.1 | 0.63 | ||||||||
≤12 years of education | 2.2 | 1.9 | 1.1, 3.3 | 0.02 | 1.6 | 1.5 | 0.8, 2.8 | 0.21 | ||||
Living alone | 0.3 | 1.8 | 0.2, 17.7 | 0.61 | ||||||||
Tobacco use in early pregnancy | 2.1 | 2.5 | 0.7, 8.3 | 0.144 | ||||||||
BMI ≥ 30 | 16.7 | 4.4 | 2.2, 8.8 | < 0.001 | 12.2 | 3.9 | 1.8, 8.2 | < 0.001 | 15.1 | 4.3 | 2.1, 9.0 | < 0.001 |
Self-reported history of psychiatric illness | 6.8 | 2.2 | 1.2, 3.9 | 0.009 | 6.1 | 2.3 | 1.2, 4.3 | 0.013 | 6.1 | 2.2 | 1.2, 4.2 | 0.014 |
Hypertension prior to pregnancy | 0.0 | 0.0 | 0.0 | 0.99 | ||||||||
Hypothyroidism | 0.0 | 1.1 | 0.3, 3.8 | 0.92 | ||||||||
Pre-eclampsia | 0.1 | 1.2 | 0.4, 3.7 | 0.75 | ||||||||
Induced labour | 4.2 | 1.8 | 1.0, 3.2 | 0.041 | 3.0 | 1.8 | 0.9, 3.3 | 0.083 | ||||
Vacuum extraction/forceps | 0.4 | 0.7 | 0.3, 1.7 | 0.55 | ||||||||
Caesarean section | 11.4 | 2.7 | 1.5, 4.7 | < 0.001 | ||||||||
Major postpartum haemorrhage > 1000mL | 2.6 | 1.9 | 0.9, 4.1 | 0.106 | ||||||||
Perineal trauma III & IV | 0.4 | 0.5 | 0.1, 4.2 | 0.54 | ||||||||
Preterm birth | 12.8 | 6.8 | 2.4, 19.5 | < 0.001 | 12.4 | 8.0 | 2.6, 27.4 | < 0.001 | 13.9 | 8.9 | 2.8, 27.9 | < 0.001 |
SGA | 1.3 | 1.8 | 0.7, 5.3 | 0.25 | ||||||||
Moderate & severe complexity | 0.1 | 1.1 | 0.6, 1.9 | 0.80 | ||||||||
NYHA class II-III | 2.6 | 3.3 | 0.8, 14.2 | 0.108 | ||||||||
Symptomatic heart disease | 0.2 | 1.3 | 0.4, 4.1 | 0.67 | ||||||||
Cardiovascular medication | 2.9 | 2.2 | 0.9, 5.5 | 0.091 | 3.9 | 3.0 | 1.0, 8.6 | 0.048 |