Table 2.
The association between known risk factors (including Migration Status) and SGA
| Variable | SGA aOR (95%CI) | |
|---|---|---|
| Marital Status | In a Relationship r | 1 |
| Not in a Relationship | 1.08 (1.04 to 1.11) *** | |
| Age Group (years) | < 20 | 0.90 (0.84 to 0.97) ** |
| 20 to 35 r | 1 | |
| 35+ | 1.07 (1.04 to 1.10) *** | |
| Parity | Primiparous | 2.01 (1.97 to 2.06) *** |
| Multiparous r | 1 | |
| BMI | Underweight | 1.61 (1.54 to 1.69) *** |
| Healthy Weight r | 1 | |
| Overweight | 0.77 (0.76 to 0.79) *** | |
| Smoking before 20wks | Yes | 1.12 (1.04 to 1.18) ** |
| No r | 1 | |
| Smoking after 20wks. | Yes | 2.25 (2.10 to 2.41) *** |
| No r | 1 | |
| Gestational Age at 1st Visit | Before 11 weeks r | 1 |
| 12 to 23 weeks | 1.09 (1.07 to 1.12) *** | |
| 24 weeks /no care | 1.25 (1.21 to 1.30) *** | |
| Type 1 Diabetes | Yes | 0.35 (0.27 to 0.45) *** |
| No r | 1 | |
| Type 2 Diabetes | Yes | 0.74 (0.59 to 0.93) * |
| No r | 1 | |
| Pre-existing Hypertension | Yes | 1.27 (1.16 to 1.38) *** |
| No r | 1 | |
| Gestational Diabetes - Diet | Yes | 1.04 (1.00 to 1.08) * |
| No r | 1 | |
| Gestational Diabetes - Insulin | Yes | 0.83 (0.78 to 0.87) *** |
| No r | 1 | |
| Preeclampsia | Yes | 1.45 (1.37 to 1.54) *** |
| No r | 1 | |
| HELLP Syndrome | Yes | 1.72 (1.42 to 2.08) *** |
| No r | 1 | |
| Suspected FGR | Yes | 10.47 (10.19 to 10.76) *** |
| No r | 1 | |
| Migration Status | Australia Born Women r | 1 |
| Migrant Women | 1.76 (1.73 to 1.80) *** | |
1. Birthweight Adjusted for Sex and Gestational Age. 2. r reference. 3. ***p < 0.001, ** p < 0.01, *p < 0.05