Table 2.
Pre-pregnancy N (%) | % change | 1st trimester N (%) | % change | 2nd trimester N (%) | % change | 3rd trimester N (%) | % change | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Variables | 2004 | 2015 | 2004 | 2015 | 2004 | 2015 | 2004 | 2015 | ||||
Maternal age (years) | ||||||||||||
12 –19 | 7.8 | 12.3 | +57.7** | 5.1 | 5.2 | +2.0 | 4.1 | 4.0 | - 2.4 | 4.0 | 2.4 | - 40.0 |
20 –29 | 210.4 | 14.9 | +43.3** | 6.3 | 5.3 | - 15.9 | 5.0 | 3.1 | - 38.0** | 3.7 | 2.1 | - 43.2** |
30 –39 | 15.4 | 18.3 | +18.8* | 8.4 | 9.0 | +7.1 | 5.6 | 5.9 | +5.4 | 3.1 | 2.8 | - 9.7 |
40 –47 | 8.5 | 16.9 | +98.8* | 4.3 | 8.9 | +107.0 | 1.4 | 4.8 | +242.9 | 1.4 | 2.4 | +71.4 |
Family income (quintiles) | ||||||||||||
1 (poorest) | 5.3 | 11.7 | +120.7** | 3.8 | 3.5 | - 17.9 | 2.5 | 2.9 | +16.0 | 1.8 | 1.8 | 0 |
2 | 6.0 | 11.6 | +93.3** | 4.9 | 6.3 | +28.6 | 3.5 | 4.0 | +14.3 | 2.5 | 2.5 | 0 |
3 | 9.1 | 15.3 | +68.1** | 6.0 | 5.3 | - 21.7 | 5.5 | 3.0 | - 35.5* | 4.0 | 2.2 | - 35.0* |
4 | 12.7 | 16.7 | +31.5* | 6.8 | 7.8 | +14.7 | 4.7 | 3.4 | - 27.7 | 3.4 | 1.5 | - 55.9* |
5 (wealthiest) | 23.7 | 26.8 | +13.1 | 11.7 | 11.8 | +0.9 | 8.2 | 9.2 | +12.2 | 5.6 | 4.7 | - 16.1 |
Schooling (years) | ||||||||||||
0 –4 | 4.3 | 5.6 | +30.2 | 2.9 | 3.3 | +13.8 | 2.0 | 2.6 | +30.0 | 1.2 | 2.1 | +75.0 |
5 –8 | 7.8 | 10.6 | +35.9* | 4.6 | 4.5 | - 12.2 | 3.3 | 3.0 | - 9.1 | 2.7 | 2.0 | - 25.9 |
9 –11 | 13.4 | 14.3 | +6.7 | 8.2 | 5.2 | - 36.6** | 5.7 | 3.1 | - 45.6** | 3.8 | 2.0 | - 47.4** |
≥ 12 | 27.2 | 25.1 | - 17.7 | 14.6 | 11.5 | - 21.2 | 11.9 | 7.3 | - 18.0** | 7.6 | 3.2 | - 57.9** |
Parity | ||||||||||||
1 | 13.9 | 18.7 | +34.5** | 8.7 | 8.5 | - 2.3 | 7.1 | 5.4 | - 23.9* | 5.1 | 2.9 | - 43.2** |
2 | 11.1 | 13.8 | +24.3* | 5.7 | 5.4 | - 5.3 | 3.6 | 3.3 | - 8.3 | 2.4 | 2.0 | - 16.7 |
3 or more | 8.3 | 11.4 | +37.3* | 4.8 | 4.2 | - 12.5 | 3.1 | 2.9 | - 6.5 | 2.2 | 1.6 | - 27.3 |
Pre-pregnancy BMI | ||||||||||||
< 18.5 | 5.6 | 11.6 | +107.1* | 4.2 | 5.8 | +38.1 | 3.8 | 3.2 | - 15.8 | 1.4 | 3.2 | +128.6 |
18.5 –24.9 | 14.0 | 16.1 | +15.0 | 7.8 | 7.2 | - 17.7 | 6.1 | 5.2 | - 14.8 | 4.6 | 2.8 | - 39.1** |
25.0 –29.9 | 14.3 | 17.8 | +24.5 | 8.6 | 7.6 | - 11.6 | 5.0 | 3.8 | - 24.0 | 2.8 | 2.6 | - 7.1 |
> =30 | 14.0 | 14.2 | +1.4 | 8.2 | 5.3 | - 35.4 | 6.2 | 3.3 | - 46.8* | 3.9 | 1.2 | - 69.2* |
Pre-pregnancy LTPA (≥150 min/week) | ||||||||||||
Yes | 47.7 | 34.8 | - 27.0** | 31.7 | 19.2 | - 39.4** | 19.3 | 9.7 | - 49.7** | |||
No | 1.4 | 1.4 | 0 | 1.4 | 1.5 | +7.1 | 1.4 | 1.0 | - 28.6 | |||
Total | 11.2 | 15.8 | +41.1** | 6.6 | 6.7 | +1.5 | 4.8 | 4.3 | - 10.4 | 3.4 | 2.4 | - 29.4** |
**X 2 for change 2004–2015 p < 0.01
*X 2 for change 2004–2015 p < 0.05