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Table 2 Risk factors associated with mortality at 3 months

From: Predictors of mortality and short-term physical and cognitive dependence in critically ill persons 75 years and older: a prospective cohort study

Characteristics Alive
(n= 38)
Dead
(n= 61)
Univariate analysis
P value
Odd Ratio [95% CI]
Multivariate analysis
P
value Odd Ratio [95% CI]
ICU admission (n = 99)
Age 78.8 ± 3.1 79.7 ± 3.3 p = 0.18
1.09 [0.96-1.24]
 
Male (%) 24(63.1%) 41(68.3%) p = 0.68
1.20 [0.51-2.80]
 
BMI, mean ± SD 28.3 ± 4.8 26.3 ± 6.5 p = 0.4
0.96 [0.88-1.05]
 
Charlson index, median (IQR) 5(4-6) 7(5-8) p = 0.003
1.45 [1.12-1.87]
p = 0.0025
1.6 [1.2-2.2]
ADL index, mean ± SD 5.4 ± 1. 5.5 ± 1.1 p = 0.36
1.31 [0.91-1.86]
 
Cognitive score, mean ± SD 1.6 ± 1.3 1.0 ± 1.4 p = 0.03
0.73 [0.53-0.99]
 
SAPS II score, median (IQR) 49(39-63) 55(41-70) p = 0.16
1.01[0.99-1.04]
 
APACHE II score, median (IQR) 24(16-28) 24(20-31) p = 0.18
1.03 [0.99-1.08]
 
SOFA score, median (IQR) 6(3-8) 7(5-11) p = 0.035
1.13 [1.01-1.27
 
Organ failures, mean ± SD 1 ± 1.1 1.7 ± 1.1 p = 0.003
1.77 [1.20-2.61]
p = 0.02
2.5 [1.15-5.2]
Mechanical ventilation, n (%) 20(52.6%) 42(68.9) p = 0.16
0.5 [0.2-1.3]
 
NIV, n (%) 14(36.8%) 17(27.9%) p = 0.47
1.51 [0.58-3.95]
 
Shock, n (%) 12(31.6%) 29(47.5%) p = 0.18
1.96 [0.84-4.59]
 
Extra-renal support, n (%) 2(5.2%) 10(16.3%) p = 0.12
0.28 [0.04-1.53]
 
  1. BMI, body mass index; ADL, Activity of Daily Living; SAPS II score, Simplified Acute Physiologic Score II, APACHE II score, Acute Physiology and Chronic Health Evaluation; SOFA score, Sequential Organ Failure Assessment; NIV, non invasive ventilation; MV, mechanical ventilation.