Sociodemograhic characteristics of study groups
| HBM card (n = 90) | Usual card (n = 83) | Difference (95% CI) | p value | |
|---|---|---|---|---|
| Mean number of children in family | 2.1 | 2.3 | −0.2 (−0.12, 0.55) | 0.21 |
| Mean number of children ⩽ 5 years | 1.6 | 1.8 | −0.2 (−0.05, 0.32) | 0.14 |
| Mean mother’s age | 29.8 | 30.0 | −0.2 (−1.28, 1.8) | 0.74 |
| Mean number of years mother at high school | 4.9 | 4.6 | 0.3 (−0.6, 0.03) | 0.072 |
| Mother born in Australia | 96% | 92% | 4% (−3, 11) | 0.22 |
| Mean father’s age | 33.1 | 32.2 | 0.9 (−2.7, 0.97) | 0.35 |
| Mean number of years father at high school | 4.6 | 4.5 | 0.0 (−0.45, 0.33) | 0.77 |
| Father born in Australia | 91% | 90% | 1% (−8, 11) | 0.78 |
| Single parent family | 12% | 5% | 7% (−1, 15) | 0.08 |
| Dependent on pension/benefit | 13% | 9% | 4% (−6, 13) | 0.45 |
HBM, health belief model.