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Table 2 Univariate Analysis from the Derivation Dataset

From: Derivation and validation of a prognostic score for neonatal mortality in Ethiopia: a case-control study

CharacteristicCases (%)
(n = 207)
Controls (%)
(n = 605)
OR95% CIp
Maternal age, years    0.05
  < 2011%7%1.921.06–3.48
 21–2959%68%1 
  ≥ 3030%26%1.370.93–2.01
Parity    0.05
 145%53%1 
  ≥ 255%47%1.371.0–1.89
Admission Age, hours    0.07
  ≤ 158%51%1 
  > 142%49%0.750.54–1.03
Gender    0.79
 Male61%60%1 
 Female39%40%0.960.69–1.32
Gestational Age, weeks    < 0.001
  ≥ 3742%74%1 
 32–3625%24%1.861.26–2.79
  < 3234%3%21.412.0–38.1
Birthweight, grams    < 0.001
  ≥ 250034%65%1 
 1500–249935%32%2.131.47–3.08
  < 150031%3%19.310.9–34.2
Onset of Labor    0.11
 Spontaneous97%94%1 
 Induced3%6%0.510.21–1.23
Delivery    0.07
 Vaginal75%69%1 
 C-section25%31%0.720.50–1.03
Antenatal Care92%95%0.540.29–1.000.06
Maternal HIV positive4%4%1.180.51–2.710.70
Suctioned at Delivery27%17%1.771.21–2.560.003
Bag & Mask at Delivery28%13%2.461.67–3.61< 0.001
Intubated at Delivery5%2%2.511.07–5.900.04
CPAP on admission59%10%13.89.37–20.34< 0.001
Admission Heart Rate    < 0.001
  < 1005%0.005%12.03.31–45.6
 100–16081%90%1 
  > 16014%9%1.731.07–2.80
Admission Respiratory Rate    < 0.001
  < 3010%1%9.063.88–21.2
 30–6050%62%1 
  > 6040%36%1.370.98–1.91
Admission Temperature, Celsius    < 0.001
  < 36.083%58%7.103.53–14.29
 36.0–36.46%13%2.220.90–5.51
 36.5–37.54%21%1 
  > 37.56%7%4.171.67–10.42
Admission Respiratory Distress    < 0.001
 None15%61%1 
 Mild5%9%2.531.20–5.35
 Moderate40%25%6.754.27–10.7
 Severe40%6%28.116.4–48.3
Admission Level of Consciousness    < 0.001
 Alert59%92%1 
 Irritable4%2%3.381.39–8.19
 Lethargic27%6%7.214.53–11.5
 Comatose9%1%21.47.15–64.0
Gestational Size    0.86
 Small for Gestational Age32%33%1 
 Appropriate for Gestational Age62%62%1.010.72–1.43
 Large for Gestational Age6%5%1.210.61–2.45
Head Size    0.65
 Microcephalic8%6%1 
 Normocephalic59%62%0.770.41–1.47
 Macrocephalic33%31%0.870.45–1.70
  1. OR = odds ratio
  2. Each row represents a separate univariate model. The following variables had more than 15% missing and were excluded from the multivariate analysis: duration of labor, rupture of membranes, 1st minute APGAR, and 5th minute APGAR. Percentages may not add to 100% due to rounding