Table 1 Mother-newborn characteristics according to maternal pre-pregnancy BMI
From: Maternal pre-pregnancy body mass index and newborn telomere length
Characteristic | Normal weight n = 488 | Overweight n = 175 | Obese n = 80 | P for trend |
|---|---|---|---|---|
Newborn | ||||
Gender | ||||
Girls, n | 251 (51.4 %) | 84 (48.0 %) | 41 (51.3 %) | 0.73 |
European-Caucasian, n | 441 (90.4 %) | 151 (86.3 %) | 66 (82.5 %) | 0.07 |
Gestational age, weeks | 39.1 (1.5) | 39.3 (1.4) | 39.3 (1.7) | 0.27 |
Birth weight, g | 3351 (468) | 3490 (453) | 3502 (524) | 0.0005 |
Maternal | ||||
Age, years | 29.2 (4.5) | 29.3 (4.6) | 28.4 (4.5) | 0.34 |
Education | ||||
Low, n | 54 (11.1 %) | 18 (10.3 %) | 11 (13.8 %) | 0.25 |
Middle, n | 170 (34.8 %) | 70 (40.0 %) | 36 (45.0 %) | |
High, n | 264 (54.1 %) | 87 (49.7 %) | 33 (41.3 %) | |
Smoking status | ||||
Never smoker, n | 305 (62.5 %) | 109 (62.3 %) | 51 (63.8 %) | 0.80 |
Stopped smoker, n | 118 (24.2 %) | 39 (22.3 %) | 21 (26.3 %) | |
Continued smoker, n | 65 (13.3 %) | 27 (15.4 %) | 8 (10.0 %) | |
Cesarean section, n | 13 (2.7 %) | 13 (7.4 %) | 7 (8.8 %) | 0.005 |
Pregnancy complication, n | 38 (7.8 %) | 23 (13.1 %) | 17 (21.3 %) | 0.006 |
Parity | ||||
1, n | 285 (58.4 %) | 86 (49.1 %) | 46 (57.5 %) | 0.12 |
2, n | 158 (32.4 %) | 63 (36.0 %) | 28 (35.0 %) | |
≥3, n | 45 (9.2 %) | 26 (14.9 %) | 6 (7.5 %) | |
Pregnancy weight gain, kg | 14.9 (5.2) | 14.1 (6.5) | 11.4 (6.1) | <0.0001 |
Paternal | ||||
Age, years | 31.7 (4.9) | 31.7 (4.7) | 31.1 (5.7) | 0.59 |