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. 2021 Sep 1;38(5):296–303. doi: 10.5152/balkanmedj.2021.21188

Table 1.

Patients’ Characteristics at ICU Admission

All Patients, n = 421 90-Day Survivors, n = 189 90-Day Non-survivors, n = 232 P
Age, years, median (IQR) 67 (57-76) 58 (49-69) 72 (64-79) <.001
Age ≥60 years, n (%) 297 (70.5) 89 (47.1) 208 (89.7) <.001
Male, n (%) 251 (59.6) 111 (58.7) 140 (60.3) .74
ECOG score,* n (%) <.001
 0 187 (45.6) 114 (62.3) 73 (32.2)
 1 76 (18.5) 30 (16.4) 46 (20.3)
 2 74 (18.0) 24 (13.1) 50 (22.0)
 3 53 (12.9) 13 (7.1) 40 (17.6)
 4 20 (4.9) 2 (1.1) 18 (7.9)
APACHE II score, median (IQR) 17 (12-26) 13 (9-18) 23 (16-30) <.001
APACHE II score ≥17, n (%) 205 (49.8) 47 (25.3) 158 (69.9) <.001
SOFA score, median (IQR) 5 (3-8) 3 (2-5) 7 (4-10) <.001
SOFA score ≥5, n (%) 199 (51.0) 51 (29.0) 148 (69.2) <.001
Comorbid diseases, n (%) 369 (87.6) 151 (79.9) 218 (94) <.001
 Hypertension 216 (51.3) 80 (42.3) 136 (58.6) .001
 Diabetes mellitus 130 (30.9) 42 (22.2) 88 (37.9) <.001
 Cardiac disease 106 (25.2) 31 (16.4) 75 (32.3) <.001
 Respiratory disease 82 (19.5) 36 (19) 46 (19.8) .84
 Cancer 45 (10.7) 14 (7.4) 31 (13.4) .049
 Cerebrovascular disease 37 (8.8) 7 (3.7) 30 (12.9) .001
 Dementia 26 (6.2) 9 (4.8) 17 (7.3) .27
 End-stage renal disease 15 (3.6) 2 (1.1) 13 (5.6) .01
Admission department of hospital, n (%)
 Ward 247 (58.6) 125 (66.1) 122 (52.7)
 Emergency department 119 (28.4) 43 (22.8) 76 (32.9) .03
 Other 55 (13.1) 23 (12.1) 31 (13.4)
Admission symptoms, n (%)
 Shortness of breath 268 (63.7) 114 (60.3) 154 (66.4) .20
 Cough 241 (57.2) 120 (63.5) 121 (52.2) .02
 Fever 232 (55.1) 122 (64.6) 110 (47.4) <.001
 Weakness 126 (29.9) 57 (30.2) 69 (29.7) .93
 Myalgia 46 (10.9) 29 (15.3) 17 (7.3) <.01
 Diarrhea 20 (4.8) 10 (5.3) 10 (4.3) .64
 Chest pain 19 (4.5) 7 (3.7) 12 (5.2) .47
 Sore throat 6 (1.4) 3 (1.6) 3 (1.3) 1.00
Duration from symptom onset to hospital admission, days, median (IQR) 3 (2-7) 4 (2-7) 3 (2-5) .02
Duration from symptom onset to ICU admission, days, median (IQR) 7 (4-10) 7 (5-10) 6 (3-10) <.01
Symptom onset to ICU admission of <7 days, n (%) 192 (49.6) 79 (43.4) 113 (55.1) .02
PaO2/FiO2, mmHg, median (IQR) 140 (88-205) 170 (110-222) 125 (75-188) <.001
PaO2/FiO2 ≤150 mmHg, n (%) 210 (53.2) 73 (41.0) 137 (63.1) <.001
Lactate, mmol/L, median (IQR) 1.4 (1-2) 1.2 (0.9-1.6) 1.6 (1.1-2.4) <.001
Lactate >2 mmol/L, n (%) 98 (24.4) 18 (10.3) 80 (35.4) <.001
Neutrophil/lymphocyte ratio, median (IQR) 8.0 (4.5-13.1) 6.4 (4.0-9.8) 9.8 (5.7-16.8) <.001
Neutrophil/lymphocyte ratio ≥8, n (%) 192 (49.7) 61 (33.9) 131 (63.6) <.001
D-dimer, ng/mL, median (IQR) 1016 (538-2186) 820 (460-1670) 1200 (600-2850) <.01
D-dimer >1000 ng/mL, n (%) 123 (50.6) 49 (43.0) 74 (57.4) .02

*ECOG score: 0, Fully active; 1, Restricted in physically strenuous activity; 2, Ambulatory and capable of all selfcare; up and about more than 50% of waking hours; 3, Capable of only limited selfcare; confined to bed or chair more than 50% of waking hours; 4, Completely disabled; totally confined to bed or chair.