Table 4. Univariate and multivariate logistic regression for factors associated with false negatives (n = 1,845).
| Factors | Univariate | Multivariate | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | p-value | aOR | 95% CI | p-value | |
| Neonate being treated in incubator | 0.89 | 0.57–1.40 | 0.6 | |||
| Birth weight | ||||||
| Low birth weight (1,500–2,499g) | Ref | |||||
| Very low birth weight (1,000–1,499g) | 1.58 | 1.04–2.40 | 0.03 | |||
| Extremely low birth weight (<1,000g) | 2.45 | 1.49–4.04 | <0.001 | |||
| Method of delivery | ||||||
| Vaginal | Ref | |||||
| C-section | 0.70 | 0.48–1.01 | 0.06 | |||
| Current feeding practices | ||||||
| Breastmilk | Ref | Ref | ||||
| Formula | 0.75 | 0.18–3.18 | 0.7 | 0.65 | 0.15–2.81 | 0.6 |
| Both | 2.50 | 1.23–5.06 | 0.01 | 3.41 | 1.65–7.04 | 0.001 |
| Other | 1.51 | 1.00–2.26 | 0.05 | 1.40 | 0.92–2.12 | 0.1 |
| Neonate clothing | ||||||
| Wearing socks | 3.70 | 0.51–26.99 | 0.2 | |||
| Wearing cap/hat | 1.80 | 0.92–3.52 | 0.08 | |||
| Wrapped with blanket/cloth | 3.25 | 0.93–11.29 | 0.06 | |||
| Room temperature | ||||||
| Hot | Ref | |||||
| Cold | 0.88 | 0.05–14.69 | 0.9 | |||
| Normal | 2.09 | 0.28–15.51 | 0.5 | |||
| Gestational age | ||||||
| Full-term (37–40 weeks) | Ref | Ref | ||||
| Moderate-late preterm (32–36 weeks) | 5.05 | 0.69–37.13 | 0.1 | 6.05 | 0.81–45.00 | 0.08 |
| Very preterm (28–31 weeks) | 5.27 | 0.72–38.74 | 0.1 | 6.11 | 0.82–45.62 | 0.08 |
| Extremely preterm (< 28 weeks) | 12.64 | 1.70–93.84 | 0.01 | 15.93 | 2.10–120.81 | 0.007 |
OR: Odds ratio, aOR: Adjusted odds ratio, CI: Confidence interval, Ref: Reference.