Characteristics . | MoBa (n = 88,716) . | DNBC (n = 66,676) . |
---|---|---|
Mothers | ||
Age (years), mean (SD) | 30.3 (4.5) | 30.5 (4.3) |
Missing, n | 0 | 36 |
History of diabetes* | ||
No | 87,756 (98.9) | 63,844 (99.7) |
Yes | 960 (1.1) | 210 (0.3) |
Missing, n | 0 | 2,622 |
Education† | ||
>4 years of college (MoBa)/≥high school (DNBC) | 22,475 (25.6) | 34,120 (66.6) |
≤4 years of college (MoBa)/vocational training (DNBC) | 37,082 (42.3) | 10,868 (21.2) |
<College (MoBa)/≤10th grade (DNBC) | 28,127 (32.1) | 6,272 (12.2) |
Missing, n | 1,032 | 15,416 |
Smoking during pregnancy | ||
No | 80,445 (92.4) | 49,403 (74.1) |
Yes | 6,620 (7.6) | 17,268 (25.9) |
Missing, n | 1,651 | 5 |
BMI before pregnancy (kg/m2) | ||
<20.0 | 10,702 (12.5) | 10,319 (16.4) |
20.0–24.9 | 48,123 (56.2) | 34,986 (55.4) |
25.0–29.9 | 18,636 (21.8) | 12,458 (19.7) |
≥30.0 | 8,139 (9.5) | 5,357 (8.5) |
Missing, n | 3,116 | 3,556 |
Parity | ||
0 | 41,882 (47.2) | 29,581 (46.1) |
1 | 30,507 (34.4) | 23,814 (37.2) |
≥2 | 16,327 (18.4) | 10,712 (16.7) |
Missing, n | 0 | 2,569 |
Infants | ||
Birth weight (g) | ||
<3,000 | 11,743 (13.2) | 7,467 (11.3) |
3,000–3,499 | 25,424 (28.7) | 19,237 (29.0) |
3,500–3,999 | 32,216 (36.3) | 24,105 (36.3) |
≥4000 | 19,317 (21.8) | 15,573 (23.4) |
Missing, n | 16 | 294 |
Gestational age (weeks) | ||
<37 | 5,311 (6.0) | 1,846 (3.8) |
≥37 | 83,362 (94.0) | 46,850 (96.2) |
Missing, n | 43 | 17,980 |
Mode of delivery | ||
Vaginal delivery | 75,675 (85.3) | 56,139 (84.5) |
Cesarean delivery | 13,041 (14.7) | 10,262 (15.5) |
Missing, n | 0 | 275 |
Sex | ||
Female | 43,307 (48.8) | 32,676 (49.0) |
Male | 45,409 (51.2) | 34,000 (51.0) |
Missing, n | 0 | 0 |
Characteristics . | MoBa (n = 88,716) . | DNBC (n = 66,676) . |
---|---|---|
Mothers | ||
Age (years), mean (SD) | 30.3 (4.5) | 30.5 (4.3) |
Missing, n | 0 | 36 |
History of diabetes* | ||
No | 87,756 (98.9) | 63,844 (99.7) |
Yes | 960 (1.1) | 210 (0.3) |
Missing, n | 0 | 2,622 |
Education† | ||
>4 years of college (MoBa)/≥high school (DNBC) | 22,475 (25.6) | 34,120 (66.6) |
≤4 years of college (MoBa)/vocational training (DNBC) | 37,082 (42.3) | 10,868 (21.2) |
<College (MoBa)/≤10th grade (DNBC) | 28,127 (32.1) | 6,272 (12.2) |
Missing, n | 1,032 | 15,416 |
Smoking during pregnancy | ||
No | 80,445 (92.4) | 49,403 (74.1) |
Yes | 6,620 (7.6) | 17,268 (25.9) |
Missing, n | 1,651 | 5 |
BMI before pregnancy (kg/m2) | ||
<20.0 | 10,702 (12.5) | 10,319 (16.4) |
20.0–24.9 | 48,123 (56.2) | 34,986 (55.4) |
25.0–29.9 | 18,636 (21.8) | 12,458 (19.7) |
≥30.0 | 8,139 (9.5) | 5,357 (8.5) |
Missing, n | 3,116 | 3,556 |
Parity | ||
0 | 41,882 (47.2) | 29,581 (46.1) |
1 | 30,507 (34.4) | 23,814 (37.2) |
≥2 | 16,327 (18.4) | 10,712 (16.7) |
Missing, n | 0 | 2,569 |
Infants | ||
Birth weight (g) | ||
<3,000 | 11,743 (13.2) | 7,467 (11.3) |
3,000–3,499 | 25,424 (28.7) | 19,237 (29.0) |
3,500–3,999 | 32,216 (36.3) | 24,105 (36.3) |
≥4000 | 19,317 (21.8) | 15,573 (23.4) |
Missing, n | 16 | 294 |
Gestational age (weeks) | ||
<37 | 5,311 (6.0) | 1,846 (3.8) |
≥37 | 83,362 (94.0) | 46,850 (96.2) |
Missing, n | 43 | 17,980 |
Mode of delivery | ||
Vaginal delivery | 75,675 (85.3) | 56,139 (84.5) |
Cesarean delivery | 13,041 (14.7) | 10,262 (15.5) |
Missing, n | 0 | 275 |
Sex | ||
Female | 43,307 (48.8) | 32,676 (49.0) |
Male | 45,409 (51.2) | 34,000 (51.0) |
Missing, n | 0 | 0 |
Data are n (%) unless otherwise indicated. Percentage values are column percentages among those with nonmissing data for each variable.
*MoBa reported type 1 diabetes in both mothers and fathers. DNBC reported maternal diabetes only (diabetes of any type).
†DNBC did not have detailed data on maternal education after high school.