Table 1.
Participant characteristics, health behaviours and numbers of women who provided a response
| Number of women | Percentage of women | |
|---|---|---|
| Age | ||
| 18–24 | 47,977 | 37.8% |
| 25–34 | 64,684 | 50.9% |
| 35–40 | 12,905 | 10.2% |
| 41 + | 1,536 | 1.2% |
| Question not answered | 4,080 | - |
| BMI | ||
| < 18.5 | 3,826 | 3.5% |
| 18.5–24.9 | 46,739 | 42.1% |
| 25–29 | 28,559 | 25.7% |
| 30 + | 31,908 | 28.7% |
| BMI excluded | 5,874 | - |
| Question not answered | 14,276 | - |
| Smoking | ||
| No | 101,611 | 80.0% |
| Yes | 25,445 | 20.0% |
| Question not answered | 4,126 | - |
| Illicit or recreational drug use | ||
| No | 122,288 | 96.3% |
| Yes | 4,698 | 3.7% |
| Question not answered | 4,196 | - |
| Alcohol consumption | ||
| No | 57,772 | 45.5% |
| Yes | 69,195 | 54.5% |
| Question not answered | 4,215 | - |
| Caffeine consumption | ||
| No | 25,921 | 20.4% |
| Yes | 100,901 | 79.6% |
| Question not answered | 4,360 | - |
| Weekly level of activity | ||
| Less than 150 min of activity | 49,072 | 42.0% |
| At least 150 min of moderate activity | 50,813 | 43.5% |
| 150 or more minutes of vigorous activity | 16,948 | 14.5% |
| Question not answered | 14,349 | - |
| Daily consumption of five portions of fruit and vegetables | ||
| No | 36,590 | 31.6% |
| Yes | 61,747 | 53.3% |
| Don’t know | 17,463 | 15.1% |
| Question not answered | 15,388 | - |
| Folic acid supplementation | ||
| No | 68,033 | 68.5% |
| Yes | 31,329 | 31.5% |
| Question not answered | 31,820 | - |
| Physical health conditiona | ||
| No | 98,316 | 85.1% |
| Yes | 17,166 | 14.9% |
| Question not answered | 15,700 | - |
| Has a Physical health condition and consulted doctor or specialist about pregnancy plans | ||
| No | 10,151 | 59.4% |
| Yes | 6,942 | 40.6% |
| Question not answered | 114,089 | - |
aThis could include asthma, high blood pressure, heart problems, auto-immune conditions, acne, pre-eclampsia, gestational diabetes or epilepsy