Table 1 Patients’ background
All cases n = 64 | Low-clearance group n = 45 | High-clearance group n = 19 | p value | |
|---|---|---|---|---|
Age | 70.8 (58.5–77.9) | 71.7 (63.8–77.3) | 64.1 (50.6–78.5) | 0.30 |
Female (%) | 17 (27) | 14 (31) | 3 (18) | 0.35 |
Height cm | 165 (157–172) | 164 (156–170) | 164 (156–170) | 0.08 |
Weight kg | 63 (54–72) | 61 (53–72) | 65 (55–75) | 0.45 |
BMI | 23 (21–25) | 23 (21–25) | 23 (21–26) | 0.88 |
Diabetes (%) | 23 (36) | 17 (38) | 6 (32) | 0.78 |
Hypertension (%) | 34 (53) | 25 (56) | 9 (47) | 0.59 |
Dyslipidemia (%) | 20 (31) | 12 (27) | 8 (42) | 0.25 |
Current smoke (%) | 19 (30) | 10 (22) | 9 (47) | 0.07 |
Hemodialysis (%) | 4 (6.3) | 2 (4.4) | 2 (11) | 0.58 |
Prior PCI (%) | 13 (20) | 10 (22) | 3 (16) | 0.56 |
Prior CABG (%) | 6 (9.4) | 4 (8.9) | 2 (11) | 1.00 |
OMI (%) | 15 (23) | 10 (22) | 5 (26) | 0.75 |
Initial rhythm | 0.48 | |||
VF/pulseless VT (%) | 38 (59) | 25 (56) | 13 (68) | |
PEA/asystole (%) | 26 (41) | 20 (44) | 6 (32) | |
Location | 0.42 | |||
In-hospital (%) | 45 (55) | 23 (51) | 12 (63) | |
Out-hospital (%) | 29 (45) | 22 (49) | 7 (37) | |
CPR duration (min) | 24 (12–45) | 24 (16–46) | 25 (10–46) | 0.67 |
Laboratory data | ||||
pH | 7.03 (6.92–7.15) | 7.03 (6.89–7.14) | 7.09 (6.92–7.20) | 0.54 |
Lactate mmol/L | 11.8 (9.9–14.8) | 11.7 (9.7–14.9) | 12.8 (10.1–14.2) | 0.74 |
Total protein g/dL | 5.2 (4.3–6.1) | 4.9 (4.0–5.6) | 5.7 (5.1–6.5) | 0.02 |
Albumin g/dL | 2.9 (2.1–3.5) | 2.5 (2.0–3.2) | 3.3 (2.6–3.8) | 0.01 |
BUN mg/dL | 19 (16–28) | 20 (17–27) | 19 (14–31) | 0.59 |
Creatinine mg/dL | 1.1 (1.0–1.5) | 1.1 (0.9–1.4) | 1.1 (1.0–1.5) | 0.74 |
Total cholesterol mg/dL | 129 (80–164) | 98 (70–164) | 142 (97–178) | 0.15 |
Low-density lipoprotein mg/dL | 70 (55–109) | 62 (54–105) | 95 (70–127) | 0.11 |
High-density lipoprotein mg/dL | 28 (20–35) | 25 (18–33) | 28 (24–40) | 0.16 |
Triglyceride mg/dL | 71 (42–96) | 58 (32–103) | 84 (71–94) | 0.26 |
Hemoglobin g/dL | 11.6 (9.5–13.8) | 11.0 (8.3–13.9) | 12.2 (11.2–13.6) | 0.14 |
White blood cell count 103/μL | 124 (97–168) | 121 (96–16) | 137 (106–194 | 0.21 |
Platelet 104/μL | 16.7 (11.9–21.6) | 14.8 (9.8–20.9) | 21.3 (14.3–25.3) | 0.02 |
C-reaction protein mg/dL | 0.19 (0.06–3.13) | 0.19 (0.07–2.56) | 0.16 (0.05–4.83) | 0.91 |