TABLE 4.
Associations with SMO (univariable and multivariable regression analysis)
| Univariable | Multivariable | |||
|---|---|---|---|---|
| OR | 95% CI | aOR | 95% CI | |
| Age | 1.05 | 1.03–1.07 | na | na |
| Parity | 1.01 | 0.87–1.12 | na | na |
| BMI | ||||
| Normal (BMI 18.5–24.9) | Ref. | Ref. | ||
| Underweight (BMI <18.5) | 0.91 | 0.45–1.73 | 0.59 | 0.24–1.43 |
| Overweight (BMI 25.0–29.9) | 1.89 | 1.39–2.74 | 1.51 | 0.80–2.41 |
| Obese (BMI 30.0–40.0) | 2.23 | 1.61–3.11 | 1.37 | 0.88–2.21 |
| Severe obesity (BMI >40.0) | 8.11 | 4.12–16.21 | 1.32 | 0.41–3.82 |
| Positive HIV | 20.12 | 11.51–35.42 | 24.82 | 10.01–61.62 |
| Cesarean section | 7.13 | 5.51–9.32 | 8.43 | 5.83–12.31 |
| Hypertensive disorder | ||||
| No hypertension | Ref. | Ref. | ||
| Chronic hypertension | 2.57 | 1.72–4.11 | 2.43 | 1.11–5.11 |
| Pregnancy‐induced hypertension | 0.04 | 0.25–0.65 | 0.05 | 0.02–0.13 |
| Pre‐eclampsia | 11.72 | 8.83–15.52 | 17.52 | 7.91–38.72 |
Abbreviations: aOR, adjusted odds ratio; BMI, body mass index (calculated as weight in kilograms divided by the square of height in meters); CI, confidence interval; na, not applicable; OR, odds ratio; Ref., reference; SMO, severe maternal outcome.