Table 3. The cox regression model of NLR and mortality.
| Outcomes | Non-adjusted model | Adjusted model | |||
|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | ||
| 30-day mortality | 3.70 (2.35, 5.81) | <0.001 | 2.18 (1.15, 4.14) | 0.017 | |
| 90-day mortality | 4.66 (3.27, 6.64) | <0.001 | 2.21 (1.33, 3.69) | 0.002 | |
| One-year mortality | 3.29 (2.51, 4.32) | <0.001 | 1.58 (1.05, 2.38) | 0.030 | |
Adjusted for the confounders: cardiac surgery type, age, gender, BMI, comorbidities (hypertension, congestive heart failure, diabetes, chronic pulmonary diseases, renal failure), laboratory tests (WBC, platelet, hemoglobin, lactate, creatinine, BUN, APTT, PT, anion gap, bicarbonate, chloride, glucose), vital signs (heart rate, MAP, respiratory rate, temperature, SPO2), SOFA score. NLR, neutrophil-lymphocyte ratio; HR, hazard ratio; CI, confidence interval; BMI, body mass index; WBC, white blood cell; BUN, blood urea nitrogen; APTT, activated partial thromboplastin time; PT, prothrombin time; MAP, mean arterial pressure; SOFA, sequential organ failure.