Birthweight (in grams) Birthweight (in grams) Gestational age (in days) Gestational age (in days)
Count Mean Mean SD Mean SD
n=24,960 μ=3,639.5 μ=3,639.5 s=523.0 μ=280.0 s=11.3
Maternal anxiety 1-2, Light 22,888 3,642.9 3,642.9 521.4 280.1 11.2
at week 17 (score) 2-3 1,571 3,602.7 3,602.7 538.5 279.5 11.8
3-4, Severe 219 3,598.8 3,598.8 510.1 278.7 11.0
NA 282 3,596.6 3,596.6 563.2 279.1 12.0
Maternal anxiety 1-2, Light 23,836 3,642.5 3,642.5 519.2 280.1 11.1
at week 30 (score) 2-3 890 3,605.8 3,605.8 562.6 279.3 12.8
3-4, Severe 104 3,489.5 3,489.5 575.4 276.6 14.6
NA 130 3,444.3 3,444.3 767.5 274.0 22.3
Maternal age <25 2,306 3,598.8 3,598.8 540.8 279.1 12.0
25-29 8,883 3,623.9 3,623.9 521.0 280.0 11.3
30-34 10,265 3,655.6 3,655.6 517.1 280.2 11.0
>=35 3,506 3,658.4 3,658.4 530.4 280.1 11.4
Partner harmony (score) 1-2, Good 18,030 3,628.7 3,628.7 522.6 280.0 11.3
2-3 5,497 3,669.9 3,669.9 516.2 280.3 10.9
3-4 984 3,686.4 3,686.4 518.7 280.1 10.5
4-5 198 3,698.8 3,698.8 549.8 278.6 13.0
5-6, Bad 47 3,577.9 3,577.9 470.7 280.7 9.4
NA 204 3,501.4 3,501.4 660.7 276.8 16.8
Education University 4y+ 6,432 3,634.1 3,634.1 507.0 280.5 10.9
College/University 3y 10,958 3,641.6 3,641.6 523.6 280.0 11.2
College 1-2y 2,945 3,647.4 3,647.4 528.8 279.8 11.7
Secondary school 3,572 3,635.8 3,635.8 541.7 279.3 11.6
NA 1,053 3,640.2 3,640.2 531.7 280.5 11.4
Marital status Married/Partner 24,420 3,640.4 3,640.4 522.3 280.0 11.3
Single 540 3,596.7 3,596.7 548.9 278.9 11.4
Parity 0 9,425 3,535.0 3,535.0 528.3 280.1 12.4
1 11,388 3,692.1 3,692.1 505.2 280.1 10.3
2 3,279 3,739.1 3,739.1 513.3 279.8 10.5
3 654 3,736.3 3,736.3 514.2 279.5 11.2
4 214 3,619.2 3,619.2 616.9 276.6 13.5
Alcohol consumption Never 21,072 3,641.0 3,641.0 521.0 280.0 11.2
during pregnancy 1+/month 97 3,602.8 3,602.8 559.2 281.5 13.5
NA 3,791 3,632.0 3,632.0 532.8 280.0 11.5
Smoking None 23,251 3,646.5 3,646.5 521.3 280.0 11.2
during pregnancy Sometimes 743 3,577.1 3,577.1 533.9 280.4 11.7
Daily 589 3,442.7 3,442.7 528.1 278.6 12.0
NA 377 3,637.3 3,637.3 529.2 279.9 13.0
Birth complication No 17,519 3,662.7 3,662.7 528.6 280.5 11.5
Yes 7,441 3,584.8 3,584.8 505.3 279.0 10.7
Child sex Girl 12,172 3,579.4 3,579.4 504.2 279.5 10.9
Boy 12,788 3,696.7 3,696.7 534.0 280.5 11.6
NA 24,164 3,650.9 3,650.9 507.5 280.3 10.8
Preeclampsia Yes 796 3,292.1 3,292.1 796.2 270.8 18.8
No 22,888 3,642.9 3,642.9 521.4 280.1 11.2