Table 2

 Hierarchical logistic regression models fitted on longstanding respiratory problems in children aged 0–2 years

Model 1*: maternal education aloneModel 2*: maternal education and lone parenthoodModel 3*: maternal education, lone parenthood, and material hardshipModel 4*: maternal education, lone parenthood, material hardship, and smoking
*All models adjusted for age, sex, and number of dependent children.
Maternal education1.87 (1.14,3.07)1.43 (0.87,2.36)1.34 (0.80,2.22)1.20 (0.72,2.01)
Lone parenthood3.35 (2.18,5.13)2.99 (1.91,4.68)2.44 (1.53,3.89)
Material hardship1.57 (0.95,2.60)1.46 (0.88,2.42)
Maternal smoking2.04 (1.30,3.20)