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Table 4 Predictors of mortality according to univariate and multivariate logistic regression analysis

From: Pattern of childhood burn injuries and their management outcome at Bugando Medical Centre in Northwestern Tanzania

Predictor variable N (%) Univariate analysis Multivariate analysis
   OR 95% C.I. P -value OR 95% C.I. P -value
Age(in years)
< 5 250 (73.1)       
5-10 92 (26.9) 2.67 (1.41-5.66) 0.021 4.61 (2.98-8.87) 0.001
Sex
Males 198 (57.9)       
Females 144 (42.1) 0.43 (0.12-1.11) 0.065 0.23 (0.11-1.33) 0.431
Pre-existing illness
Present 8 (2.3)       
Absent 334 (97.7) 1.22 (0.91-2.12) 0.025 1.34 (0.12-1.45) 0.056
Timing of care
¿ 24 h 246 (71.9)       
> 24 h 96 (28.1) 1.98 (0.77-2.11) 0.048 0.96 (0.81-1.23) 0.098
Type of burn
Scald 192 (56.1)       
Flame 138 (40.4) 1.76 (1.11-2.01) 0.112 0.04 (0.01-0.11) < 0.001
Chemical 5 (1.5) 1.99 (1.13-2.11) 0.687 1.21 (1.10-2.09) < 0.001
Electrical 3 (0.9 0.19 (0.03-0.83) 0.153 0.23 (0.11-0.56) < 0.001
Contact 4 (1.2) 2.31 (2.01-2.89) 0.061 1.26 (1.06-1.51) < 0.001
Clothing ignition
Yes 38 (11.1       
No 304 (88.9) 0.04 (0.01-0.68) 0.032 0.91 (0.11-1, 76) 0.086
Associated injuries
Present 6 (1.8)       
Absent 336 (98.2) 4.87 (3.44-8.92) 0.011 4.77 (2.81-8.94) 0.000
TBSA (%)
< 40 322 (94.2)       
¿ 40 20 (5.8) 3.90 (2.93-6.93) 0.002 2.54 (1.69-7.44) 0.012
Inhalation injury
Present 5(1.5)       
Absent 337 (98.5) 4.76 (2.09-7.77) 0.000 6.43 (4.21-9.39) 0.011
Burn depth
Superficial 164 (48.0)       
Deep 98(28.7) 0.28 (0.11-1.21) 0.043 2.12 (0, 86-2.64) 0.098
Mixed 80(23.4 1.03 (0.83-1.75) 0.062 0.08 (0.02-1.21) 0.564
Severity        
Moderate 194 (56.7)       
Severe 148 43.3) 3.89 (2.11-7.93) 0.002 6.86 2.43-8.96) 0.000
HIV status
Positive 8 (2.3)       
Negative 334 (97.7) 1.82 (0.22-1.99) 0.045 0.71 (0.12-1.99) 0.087
Stigmata of AIDS
Present 2(25.0%)       
Absent 6 (75.0%) 2.87 (1.92-6.66) 0.012 3.34 (1.83-4.76) 0.004
CD 4 + count
< 200 3 (37.5)       
¿200 5(62.5) 1.34 (1, 11-4.78) 0.003 2.98 (2.06-5.98) 0.001