Skip to main content
. 2023 May 16;11:e15335. doi: 10.7717/peerj.15335

Table 1. Baseline and clinical characteristics of the study population.

Patients characteristics Survivors (n = 123) Non-survivors (n = 63) P
Male, n (%) 76 44 0.277
Age, mean ± SD 72.38 ± 9.64 74.57 ± 8.57 0.199
Infection sites leading to ICU admission, n(%) 0.761
Respiratory infection 55 (44.72%) 27 (42.85%)
Urinary tract infection 27 (21.95%) 16 (25.40%)
Bloodstream infections 11 (8.94%) 3 (4.76%)
Abdominal cavity infection 24 (19.51%) 15 (23.81%)
Others 6 (4.88%) 2 (3.17%)
Past medical history, n (%) 0.877
Coronary heart disease 65 (85.53%) 47 (74.60%)
Hypertension 42 (55.26%) 26 (41.27%)
Diabetes mellitus 32 (42.11%) 18 (28.57%)
Cerebrovascular disease 19 (25%) 14 (22.22%)
APACHE II score, mean ± SD 24.03 ± 5.90 30.28 ± 6.67 0.000
SOFA score, mean ± SD 8.67 ± 3.12 12.14 ± 3.00 0.000
Vital signs on ICU admission
SBP, mmHg, median (IQR) 82.00 (78.00, 87.00) 85.00 (79.00, 90.00) 0.146
DBP, mmHg, median (IQR) 50.00 (48.00, 60.00) 50.00 (45.00, 60.00) 0.273
MAP, mmHg, median (IQR) 61.67 (57.33. 68.33) 61.67 (56.67, 70.00) 0.915
Pulse rate, beats/min,, median (IQR) 123.00 (104.00, 139.00) 147.00 (105.00, 153.00) 0.020
Body temperature, °C, mean ± SD 38.42 ± 0.71 38.59 ± 0.71 0.137
Respiratory rate, breaths/min, mean ± SD 33.87 ± 9.77 35.02 ± 11.43 0.476
Laboratory indicators
WBC, ×109/L, mean ± SD 16.32 ± 8.18 14.40 ± 7.17 0.116
PCT, ng/mL, median (IQR) 16.27 (5.31, 35.10) 16.87 (5.52, 35.29) 0.368
IL-6, pg/mL, median (IQR) 84.27 (27.38, 243.00) 129.91 (26.31, 1015,24) 0.086
Platelet, ×109 /L, median (IQR) 90.00 (65.00, 190.00) 140.00 (57.00, 210.00) 0.390
Albumin, g/L, median (IQR) 30.00 (27.00, 43.00) 31.00 (27.00, 40.00) 0.539
Creatinine, μmol/L, mean ± SD 248.20 ± 123.59 299.38 ± 125.19 0.008
PaO2/FiO2, mmHg, median (IQR) 217.54 (198.63, 267.32) 165.43 (98.63, 200.39) 0.000
Lactate, mmol/L, median (IQR) 11.40 (8.80, 12.60) 11.40 (9.40, 12.80) 0.653

Notes.

APACHE II score
acute physiology and chronic health evaluation II score
ICU
intensive care unit
WBC
White blood cell
PCT
Procalcitonin
SBP
Systolic blood pressure
DBP
Diastolic blood pressure
MAP
Mean arterial pressure
SOFA score
Sequential Organ Failure Assessment score
IL-6
interleukin-6