Table 1 Characteristics of full cohort
From: Maternal Anxiety and Infants Birthweight and Length of Gestation. A sibling design
Count | Birthweight (in grams) | Gestational age (in days) | |||
|---|---|---|---|---|---|
Mean | SD | Mean | SD | ||
n=91,165 | μ=3,610.3 | s=542.3 | μ=279.7 | s=11.7 | |
Maternal anxiety at week 17 (score) | |||||
1-2, Light | 80,233 | 3,615.1 | 540.2 | 279.8 | 11.7 |
2-3 | 8,022 | 3,581.1 | 554.3 | 279.1 | 12.1 |
3-4, Severe | 1,362 | 3,529.9 | 573.0 | 277.6 | 12.9 |
NA | 1,548 | 3,583.5 | 545.7 | 279.0 | 12.0 |
Maternal anxiety at week 30 (score) | |||||
1-2, Light | 85,064 | 3,615.0 | 537.3 | 279.9 | 11.5 |
2-3 | 4,690 | 3,559.4 | 572.9 | 278.5 | 13.2 |
3-4, Severe | 639 | 3,519.8 | 643.1 | 276.5 | 15.6 |
NA | 772 | 3,470.6 | 728.9 | 275.5 | 20.1 |
Maternal age | |||||
<25 | 9,862 | 3,552.4 | 547.6 | 279.0 | 12.3 |
25-29 | 30,223 | 3,592.8 | 533.2 | 279.7 | 11.6 |
30-34 | 35,280 | 3,631.6 | 536.4 | 279.9 | 11.4 |
>=35 | 15,800 | 3,632.0 | 564.9 | 279.6 | 12.2 |
Partner harmony (score) | |||||
1-2, Good | 64,618 | 3,602.6 | 540.2 | 279.8 | 11.8 |
2-3 | 19,726 | 3,638.9 | 538.4 | 279.8 | 11.4 |
3-4 | 3,977 | 3,646.6 | 537.8 | 279.6 | 11.2 |
4-5 | 919 | 3,637.1 | 581.1 | 278.8 | 12.1 |
5-6, Bad | 359 | 3,518.4 | 570.4 | 278.8 | 11.5 |
NA | 1,566 | 3,476.8 | 617.3 | 278.0 | 14.8 |
Education | |||||
University 4y+ | 20,406 | 3,602.9 | 525.4 | 280.3 | 11.3 |
College/University 3y | 35,732 | 3,620.1 | 534.3 | 279.8 | 11.6 |
College 1-2y | 12,684 | 3,623.4 | 555.7 | 279.7 | 12.0 |
Secondary school | 17,720 | 3,595.2 | 566.3 | 278.8 | 12.3 |
NA | 4,623 | 3,588.3 | 542.6 | 279.8 | 12.0 |
Marital status | |||||
Married/Partner | 87,656 | 3,613.7 | 540.9 | 279.7 | 11.7 |
Single | 3,509 | 3,523.1 | 568.3 | 279.1 | 12.3 |
Parity | |||||
0 | 41,316 | 3,505.5 | 535.4 | 279.9 | 12.5 |
1 | 32,276 | 3,683.5 | 523.1 | 279.8 | 10.8 |
2 | 13,754 | 3,725.8 | 541.4 | 279.4 | 11.1 |
3 | 2,912 | 3,723.1 | 562.3 | 278.7 | 11.8 |
4 | 907 | 3,661.1 | 601.8 | 276.5 | 13.1 |
Alcohol consumption during pregnancy | |||||
Never | 74,786 | 3,611.1 | 541.7 | 279.7 | 11.8 |
1+/month | 533 | 3,567.4 | 537.9 | 280.4 | 12.1 |
NA | 15,846 | 3,607.6 | 545.1 | 279.8 | 11.7 |
Smoking during pregnancy | |||||
None | 81,879 | 3,621.6 | 538.9 | 279.8 | 11.6 |
Sometimes | 4,018 | 3,570.9 | 554.5 | 279.9 | 12.3 |
Daily | 3,746 | 3,420.1 | 553.4 | 278.5 | 12.4 |
NA | 1,522 | 3,571.3 | 566.9 | 279.2 | 13.2 |
Birth complication | |||||
No | 66,220 | 3,627.8 | 546.0 | 280.1 | 11.9 |
Yes | 24,945 | 3,563.6 | 529.3 | 278.6 | 11.3 |
Child sex | |||||
Girl | 44,450 | 3,546.2 | 524.6 | 279.2 | 11.5 |
Boy | 46,715 | 3,671.2 | 551.7 | 280.2 | 12.0 |
NA | 87,792 | 3,624.7 | 524.6 | 280.1 | 11.2 |
Preeclampsia | |||||
Yes | 3,373 | 3,234.0 | 799.2 | 270.2 | 19.2 |
No | 80,233 | 3,615.1 | 540.2 | 279.8 | 11.7 |