Table 5.
Baseline characteristics after propensity score matching (n = 978).
| Characteristics | LMR | p-value | |
|---|---|---|---|
| <3.58 (n = 489) | ≥3.58 (n = 489) | ||
| Demographics | |||
| Age, years | 68.7 (61–76.9) | 69.7 (60.9–77.6) | 0.482 |
| Male, n (%) | 356 (72.8) | 373 (76.3) | 0.218 |
| Ethnicity, n (%) | 0.051 | ||
| White | 372 (76.1) | 353 (72.2) | |
| Black | 8 (1.6) | 17 (3.5) | |
| Others | 109 (22.3) | 119 (24.3) | |
| Vital Signs | |||
| HR, beats/minute | 85 (79.4–91.5) | 85.1 (79.1–91.7) | 0.992 |
| SBP, mmHg | 111.7 (106.3–120) | 112.1 (106.2–120.1) | 0.493 |
| DBP, mmHg | 56.2 (51.9–60.3) | 55.9 (52.4–60.6) | 0.699 |
| RR, times/minute | 16.9 (15.4–19.3) | 16.8 (15–19) | 0.202 |
| Temperature, °C | 36.9 (36.6–37.2) | 36.9 (36.6–37.3) | 0.561 |
| SpO2, % | 98.3 (97.3–99) | 98.2 (97.4–99) | 0.260 |
| Comorbidities | |||
| Congestive heart failure | 201 (41.1) | 202 (41.3) | 0.999 |
| Cardiac arrhythmias | 283 (57.9) | 286 (58.5) | 0.886 |
| Valvular disease | 130 (26.6) | 122 (24.9) | 0.059 |
| Hypertension | 317 (64.8) | 335 (68.5) | 0.247 |
| Chronic pulmonary disease | 99 (20.2) | 95 (19.4) | 0.811 |
| Renal failure | 59 (12.1) | 59 (12.1) | 0.999 |
| Liver disease | 17 (3.5) | 16 (3.3) | 0.999 |
| Coagulopathy | 33 (6.7) | 43 (8.8) | 0.289 |
| Diabetes | 158 (32.3) | 184 (37.6) | 0.092 |
| Laboratory Events | |||
| LMR | 2.7 (2.1–3.1) | 4.5 (4–5.1) | <0.001 |
| NLR | 5.3 (3.6–8.5) | 3.2 (2.4–4.3) | <0.001 |
| PLR | 182.2 (138–256.8) | 128.1 (93.3–169) | <0.001 |
| WBC, 109/L | 8.6 (6.5–11.4) | 8.3 (6.7–10.6) | 0.125 |
| Neutrophils, % | 76.3 (69.2–83.4) | 70.1 (63.9–76.2) | <0.001 |
| Monocytes, % | 5.7 (4.4–7.1) | 4.8 (3.8–5.8) | <0.001 |
| Lymphocytes, % | 14.5 (9.8–19.2) | 21.9 (17.7–26.3) | <0.001 |
| Platelet, 109/L | 221 (178–280) | 222 (189–272.5) | 0.757 |
| Hemoglobin, g/dL | 10.2 (9.3–11.2) | 10.4 (9.4–11.2) | 0.614 |
| Serum sodium, mmol/L | 137.5 (135.5–139) | 137.5 (135.5–138.5) | 0.613 |
| Serum potassium, mmol/L | 4.5 (4.2–4.9) | 4.5 (4.3–4.9) | 0.871 |
| Serum creatinine, mg/dL | 1 (0.8–1.3) | 1 (0.8–1.2) | 0.710 |
| Scores | |||
| SAPS II | 35 (29–42) | 34 (29–43) | 0.857 |
| SOFA | 5 (3–7) | 5 (3–7) | 0.666 |
| Surgical type | |||
| CABG | 331 (67.7) | 374 (76.5) | 0.002 |
Values are presented as the mean ± standard deviation, median (interquartile range), or number of patients (%).
HR, heart rate; SBP, systolic blood pressure; DBP, diastolic blood pressure; RR, respiratory rate; SPO2, percutaneous oxygen saturation; LMR, lymphocyte-to-monocyte ratio; NLR, neutrophil-to-lymphocyte ratio; PLR, platelet-to-lymphocyte ratio; WBC, white blood cell; SAPS II, Simplified Acute Physiology Score II; SOFA, Sequential Organ Failure Assessment; CABG, coronary artery bypass grafting.