Research Article

Prognostic Analysis of Elderly Patients with Multiple Organ Dysfunction Syndrome Undergoing Invasive Mechanical Ventilation

Table 1

General clinical information of the enrolled patients.

Total28-day survivors (n = 102)28-day nonsurvivors (n = 249)

Age (years)77.71 ± 9.2277.52 ± 9.1877.86 ± 9.240.816
Gender (no., %)
 Male25472182 (71.65%)0.781
 Female973067 (69.07%)
Number of failing organs3.82 ± 1.223.14 ± 1.034.09 ± 1.19<0.001
Vital signs and laboratory tests
 Body temperature (°C)37.81 ± 1.4037.45 ± 1.2537.95 ± 1.440.021
 Heart rate (times/min)114.7 ± 29.2104.3 ± 26.1118.9 ± 29.40.001
 Breathing rate (times/minute)24.5 ± 6.722.6 ± 5.625.3 ± 7.00.006
 Mean arterial pressure (mmHg)77.5 ± 22.682.1 ± 22.475.6 ± 22.50.070
 Urine output (mL/24 hours)1671.7 ± 1392.11371.8 ± 181.71332.1 ± 112.6<0.001
 WBC count (109/L)12.95 ± 8.2011.19 ± 5.5613.66 ± 8.980.021
 Platelet count (109/L)126.5 ± 74.7150.8 ± 69.3116.7 ± 74.80.003
 PaO2/FiO2156.0 ± 85.0180.7 ± 96.2142.3 ± 76.2<0.001
 Serum creatinine (μmol/L)194.2 ± 173.0141.5 ± 130.0215.7 ± 183.70.002
 Serum sodium (mmol/L)140.05 ± 8.72137.71 ± 7.01141.00 ± 9.180.016
 Serum potassium (mmol/L)4.22 ± 1.103.78 ± 0.804.40 ± 1.16<0.001
 Serum albumin (g/L)30.42 ± 8.7232.32 ± 10.7129.65 ± 7.680.050
 Serum bilirubin (μmol/L)31.82 ± 61.0016.43 ± 12.4238.08 ± 71.050.001
Scoring systems
 APACHE II25.6 ± 8.218.8 ± 6.128.4 ± 7.4<0.001
 APACHE III96.5 ± 31.471.1 ± 24.6106.9 ± 27.8<0.001
 SAPS II61.9 ± 17.848.1 ± 13.367.6 ± 16.3<0.001
 MODS8.7 ± 3.55.9 ± 2.59.9 ± 3.2<0.001
Outcomes of weaning
 Success1057629 (27.94%)<0.001
 Failure16926143 (84.62%)
The length of ICU stay (days)20.93 ± 21.6917.67 ± 19.9928.95 ± 23.710.001

Quantitative data of normal distribution are presented as mean ± SD. Qualitative data are presented as n. and survivors vs. nonsurvivors. WBC counts: white blood cell counts. APACHE: Acute Physiology and Chronic Health Evaluation. SAPS: sample acute physiological score. MODS: multiple organ dysfunction syndrome. ICU: intensive care unit.