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Table 5 Factors associated with length of hospital stay among patients who underwent major abdominal surgery at MNRH during the study period

From: Elevated serum lactate as a predictor of outcomes in patients following major abdominal surgery at a tertiary hospital in Uganda

Characteristic Univariate Multivariate
cOR 95% CI p-value aOR 95% CI p-value
Age       
  < 18 years 1      
  ≥ 18 years 5.11 2.40–6.49  < 0.001 3.47 0.08–0.66 0.390
Gender       
 Male 1      
 Female 3.27 2.64–3.90  < 0.001 2.03 0.63–6.62 0.237
Type of surgery       
 Elective 1      
 Emergency 2.82 2.33–3.31  < 0.001 2.64 0.64–3.20 0.737
ASA status       
 I 1      
 II 4.12 2.76–5.49  < 0.001 2.22 0.43–5.67 0.316
 III 7.41 5.82–8.99  < 0.001 6.28 2.74–8.97 0.003
 IV 3.00 4.27–10.27 0.416 1.86 0.20–2.35 0.960
Duration between diagnosis & treatment for emergencies (days)       
 Within 1 day 1      
 Longer than a day 3.67 3.00–4.34  < 0.001 2.54 0.08–3.16 0.508
Duration of surgery (hours)       
  ≤ 1.5 1      
  > 1.5 3.45 2.96–3.93  < 0.001 2.03 1.91–3.15 0.032
Pre-surgery treatment       
 Yes 1      
 No 3.81 3.08–4.53  < 0.001 1.13 0.60–5.86 0.637
Comorbidities       
 No 1      
 Yes 2.35 1.29–4.42  < 0.001 1.90 0.27–2.12 0.446
Organs involved       
 One organ 1      
 More than one organ 0.75 0.60–0.89  < 0.001 0.24 0.16–2.32 0.800
Serum lactate       
 Normal (≤ 2.0 mmol/L) 1      
 High (> 2.0 mmol/L) 5.34 3.86–6.82  < 0.001 1.75 1.43–2.37 0.043
  1. The bold was indicative of the statistically significant p values of different variables