Table 1.
Maternal and Neonatal Characteristics.
| Lean (n = 102) | Overweight (n = 79) | Obese (n = 45) | Severely Obese (n = 33) | p-value | |
|---|---|---|---|---|---|
| Maternal age (years) | 34.2 (5.0) | 34.6 (6.2) | 32.0 (5.2) | 31.7 (5.0) | 0.017 |
| Maternal BMI (kg/m2) | 22.6 (1.6) | 27.3 (1.4) | 34.2 (2.8) | 44.3 (3.6) | <0.0001 |
| Parity n (%) | |||||
| Prim | 27 (26.5) | 13 (16.5) | 8 (18.8) | 8 (24.2) | 0.15 |
| Para 1 | 50 (49.0) | 48 (60.8) | 26 (57.8) | 12 (36.4) | |
| Para ≥ 2 | 25 (24.5) | 18 (22.7) | 11 (24.4) | 13 (39.4) | |
| Smoking n (%) | <0.0001 | ||||
| Non smoker | 96 (94.1) | 75 (94.9) | 44 (97.8) | 22 (66.7) | |
| Smoker | 6 (5.9) | 4 (5.1) | 1 (2.2) | 11 (33.3) | |
| Labour onset n (%) | |||||
| Spontaneous | 3 (2.9) | 3 (3.8) | 3 (6.7) | 2 (6.1) | 0.019 |
| Induced | 2 (2.0) | 0 (0) | 1 (2.2) | 4 (12.1) | |
| Prelabour CS | 97 (95.1) | 76 (96.2) | 41 (91.1) | 27 (81.8) | |
| Labour Type n (%) | |||||
| Labour | 9 (8.8) | 3 (3.8) | 3 (6.7) | 5 (15.2) | 0.212 |
| Non-labour | 93 (91.2) | 76 (96.2) | 42 (93.3) | 28 (84.8) | |
| Mode of Delivery n (%) | |||||
| ElCS | 93 (91.2) | 76 (96.2) | 42 (93.3) | 28 (84.8) | 0.102 |
| SVD | 0 | 0 | 0 | 1 (3.0) | |
| Instrumental | 2 (2.0) | 0 | 1 (2.2) | 2 (6.0) | |
| EmCS in labour | 3 (2.9) | 3 (3.8) | 2 (4.4) | 2 (6.0) | |
| Prelabour EmCS | 4 (3.9) | 0 | 0 | 0 | |
| Gestational age at delivery (days) | |||||
| Mean (sd) | 273.7 (8.1) | 275.3 (7.0) | 275.4 (8.5) | 276.3 (7.6) | 0.285 |
| Baby gender n (%) | |||||
| Male | 55 (53.4) | 40 (50.6) | 27 (60) | 20 (60.1) | 0.607 |
| Female | 47 (46.1) | 39 (49.4) | 18 (40) | 12 (36.4) | |
| Birthweight (g) | <0.0001 | ||||
| Mean (sd) | 3442 (492) | 3514 (546) | 3851 (642) | 3739 (555) | |
| Macrosomia n (%) | <0.0001 | ||||
| Yes | 12 (11.8%) | 11 (13.9) | 20 (44.4%) | 9 (26.5%) | |
Parity was defined as ‘prim’ (no previous pregnancies delivered after 24 weeks), ‘para 1’ (one previous delivery after 24 weeks gestation) and ‘para ≥ 2’ (two or more previous deliveries after 24 weeks gestation). ‘Smokers’ were defined as those who considered themselves as current smokers. Macrosomia was defined as ≥ 4000 g. Data are mean (sd) or N (%). P-value is from one-way ANOVA for continuous variables, and chi-squared test for categorical variables.
Missing data: n = 1 baby gender missing from offspring of severely obese
Key: BMI (body mass index), CS (caesarean section), ElCS (elective caesarean section), EmCS (Emergency caesarean section), SVD (spontaneous vaginal delivery).