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Table 4 Univariate and multivariate associations for 72-h non-discharge

From: Serum lactate as a predictor of early outcomes among trauma patients in Uganda

Characteristic per unit increase Univariate model Multivariate model
HR 95%CI pvalue HR 95%CI pvalue
Lactate, mmol/l       
 <2.0 - Reference - - Reference -
 ≥2.0 4.33 0.96 to 19.51 0.06 3.70 0.81 to 16.80 0.09
≥4.0 31.15 7.56 to 128.42 <0.001 18.53 4.29 to 80.00 <0.001
KTS II       
 >8 - Reference - - Reference -
 ≤8 4.97 2.97 to 8.33 <0.001 1.56 0.73 to 3.31 0.25
Sex       
 Female - Reference - - Reference -
 Male 1.84 0.84 to 4.07 0.13 1.46 0.63 to 3.38 0.38
Occupation       
 Salaried/wage - Reference - - Reference -
 Student 0.86 0.30 to 2.44 0.78 0.84 0.29 to 2.47 0.76
 Peasant 2.06 1.01 to 4.18 0.05 1.02 0.43 to 2.35 0.97
 Business 1.77 0.81 to 3.88 0.15 1.03 0.45 to 2.38 0.94
 Boda-boda 0.78 0.27 to 2.20 0.63 0.56 0.19 to 1.70 0.31
 Others 1.24 0.28 to 5.54 0.78 0.69 0.09 to 5.27 0.72
Education level       
 None - Reference - - Reference -
 Primary 0.49 0.24 to 0.98 0.04 0.79 0.37 to 1.67 0.53
 Secondary 0.46 0.22 to 0.99 0.05 0.82 0.34 to 1.98 0.66
 Tertiary 0.44 0.18 to 1.08 0.07 0.85 0.28 to 2.63 0.78
Diastolic BP 0.98 0.97 to 1.00 0.009 1.01 0.99 to 1.04 0.27
Systolic BP 0.99 0.98 to 1.00 0.002 1.00 0.98 to 1.01 0.52
Per 10 unit increase  
 Pulse rate 1.24 1.08 to 1.43 0.002 1.14 1.00 to 1.30 0.06
 Respiratory rate 2.42 1.79 to 3.28 <0.001 1.23 0.77 to 1.98 0.38
 SPO2 0.73 0.64 to 0.83 <0.001 0.79 0.60 to 1.04 0.09