Table 1 Demographic characteristics of the intervention and control sample
Characteristic | Mean (SD, range) or percentage | Mean (SD, range) or percentage | Maternity hospital Population |
|---|---|---|---|
| Â | Intervention sample (n = 178) | Usual care sample (n = 182) | Â |
Age (years) | 29.5 (5.1;18–44) | 29.0 (4.7; 19–41) | 29.4 (5.8) |
< 20 years | 2.8% | 2.2% | 5.0% |
20-24 years | 12.9% | 15.9% | 48.6% |
25-29years | 34.8% | 35.2% | |
30-34 years | 32.0% | 33.5% | 41.5% |
35-39 years | 15.2% | 12.6% | |
≥ 40 | 2.2% | 0.5% | 5.0% |
Pre-pregnancy BMI (kg/m 2) | 25.4 (5.2) | 24.6 (5.5) | 24.7 (6.6) |
Underweight (<18.5) | 4.5% | 6.6% | 7.5% |
Healthy weight (18.5-24.9) | 48.3% | 51.6% | 55.2% |
Overweight (25–29.9) | 26.4% | 25.3% | 19.9% |
Obese (≥ 30) | 17.4% | 14.3% | 15.9% |
Missing | 3.4% | 2.2% | 1.5% |
Education: | Â | Â | - |
Did not finish high school | 27.5% | 30.8% | Â |
Trade/apprenticeship/diploma | 29.2% | 30.2% | - |
Degree/higher degree | 43.3% | 38.5% | - |
Household income (gross, per year) | Â | Â | - |
<$20,000 | 1.1% | 1.6% | - |
$20,001-35000 | 6.2% | 5.5% | - |
$35,001-50,000 | 14.6% | 11.0% | - |
$50,001-70,000 | 18.5% | 20.9% | - |
$70,001-100,000 | 29.8% | 24.2% | - |
>$100,000 | 19.7% | 25.3% | - |
Refused to answer | 5.1% | 6.6% | - |
Not sure | 4.5% | 3.3% | - |
Missing | 0% | 1.1% | - |
Marital status | Â | Â | - |
Married/de facto | 90.4% | 93.4% | - |
Separated/Divorced | 2.2% | 0.6% | - |
Never Married | 7.3% | 5.5% | - |
Missing | 0% | 0.6% | - |
Employment | Â | Â | - |
Full time work | 49.4% | 52.7% | - |
Part time/ Casual work | 19.1% | 23.1% | - |
Studying | 6.2% | 5.5% | - |
Full time home duties | 15.7% | 11.5% | - |
Unemployed | 9.6% | 6.6% | - |
Missing | 0% | 0.5% | - |
ATSI status | Â | Â | - |
Aboriginal, but not Torres Strait Islander | 0.6% | 0.5% | - |
Neither | 99.4% | 98.9% | - |
Missing | 0% | 0.5% | - |
Gravida | 2.1 (1.5) | 2.0 (1.4) | - |
Parity | 0.6 (0.9) | 0.6 (0.8) | - |
Stage of gestation – weeks | 14.5 (3.0) | 14.2 (3.0) | - |