Table 3. Univariate and multivariate logistic regression for factors associated with false positives (n-1,697).
| Factors | Univariate | Multivariate | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | p-value | aOR | 95% CI | p-value | |
| Neonate being treated in incubator | 2.86 | 1.71–4.81 | <0.001 | 2.72 | 1.59–4.63 | <0.001 |
| Birth weight | ||||||
| Low birth weight (1,500–2,499g) | Ref | |||||
| Very low birth weight (1,000–1,499g) | 0.64 | 0.35–1.16 | 0.1 | |||
| Extremely low birth weight (<1,000g) | 1.43 | 0.75–2.74 | 0.3 | |||
| Method of delivery | ||||||
| Vaginal | Ref | |||||
| C-section | 0.90 | 0.55–1.48 | 0.7 | |||
| Current feeding practices | ||||||
| Breastmilk | Ref | Ref | ||||
| Formula | 2.60 | 0.99–6.85 | 0.05 | 3.49 | 1.29–9.48 | 0.01 |
| Both | 0.69 | 0.16–2.89 | 0.6 | 0.50 | 0.12–2.11 | 0.3 |
| Other | 0.48 | 0.23–0.98 | 0.05 | 0.64 | 0.30–1.33 | 0.2 |
| Neonate clothing | ||||||
| Wearing socks | 2.40 | 0.33–17.60 | 0.4 | |||
| Wearing cap/hat | 1.12 | 0.56–2.24 | 0.7 | |||
| Wrapped with blanket/cloth | 0.45 | 0.27–0.74 | 0.002 | |||
| Room temperature | ||||||
| Hot | Ref | |||||
| Cold | 1.76 | 0.15–20.40 | 0.7 | |||
| Normal | 1.10 | 0.15–8.21 | 0.9 | |||
| Gestational age | ||||||
| Full-term (37–40 weeks) | Ref | |||||
| Moderate-late preterm (32–36 weeks) | 0.99 | 0.38–2.56 | 1.0 | |||
| Very preterm (28–31 weeks) | 0.37 | 0.13–1.04 | 0.06 | |||
| Extremely preterm (< 28 weeks) | 0.31 | 0.08–1.17 | 0.08 | |||
OR: Odds ratio, aOR: Adjusted odds ratio, CI: Confidence interval, Ref: Reference.