Table 1.
Descriptive Characteristics of the Obstetric Cohort
| Variables | n (%) or Mean ± SD | Minimum–Maximum |
|---|---|---|
| IV | ||
| BMI (n= 16,528) | 25.30±6.320 | 13–77 |
| Healthy weight 18.5–24.9 | 8338 (50.4) | |
| Underweight <18.5 | 1012 (6.1) | |
| Overweight 25–29.9 | 3904 (23.6) | |
| Obese >30.0 | 3274 (19.8) | |
| DV | ||
| Vitamin D deficient (Yes) | 4792 (50.0) | |
| Depression (High) | 948 (6.7) | |
| Covariates | ||
| Mum COB (Australia) | 11,077 (67.2) | |
| Marital Status (With Partner) | 14,524 (89.1) | |
| Mother Working (Yes) | 7718 (46.7) | |
| Smokes during pregnancy (Yes) | 1486 (9.0) | |
| Domestic Violence (Yes) | 86 (0.5) | |
| Hypertension during pregnancy (Yes) | 838 (5.1) | |
| Season of Birth (Summer) | 5310 (32.1) | |
| Season of Birth (Autumn) | 4267 (25.8) | |
| Season of Birth (Winter) | 4142 (25.1) | |
| Season of Birth (Spring) | 2809 (17.0) | |
| Gender (baby) (Female) | 8031 (48.6) | |
| Maternal age at delivery time (years) (n= 16,528) | 31.06±5.176 | 13–55 |
| Birth Weight (grams) (n= 16,528) | 3331.84±632.993 | 310.00–5520.00 |
| Parity (n= 16,528) | 0.90±1.08 | 0–10 |
Abbreviations: IV, Independent Variable; DV, Dependent Variable; BMI, Body Mass Index; COB, Country Of Birth; SD, Standard Deviation.