U-shaped relationship between platelet–lymphocyte ratio and postoperative in-hospital mortality in patients with type A acute aortic dissection

Table 2 Multivariable regressions analysis in different models

Variables	Model I (OR, 95% CI)	Model II (OR, 95% CI)	Model III (OR, 95% CI)	Model IV (OR, 95% CI)
PLR	0.99 (0.99, 1.00)*	0.99 (0.99, 1.00) *	0.99 (0.99, 1.00)	0.99 (0.99, 1.00)
PLR tertiles
T1	Ref	Ref	Ref	Ref
T2	0.30 (0.12, 0.75)*	0.31 (0.12, 0.78) *	0.17 (0.05, 0.58) *	0.20 (0.06, 0.66) *
T3	0.34 (0.14, 0.82)*	0.36 (0.15, 0.87) *	0.32 (0.10, 0.97) *	0.30 (0.09, 0.92) *
P value for trend	0.01	0.01	0.02	0.02

*P < 0.05. OR, odds ratio; CI, confidence interval; Ref, reference. Model I, adjusted for none; Model II, adjusted for age and sex; Model III, adjusted for age, sex, cerebrovascular disease, chronic renal failure, autologous blood (≥ 500 ml), cryoprecipitate, RBCs, plasma, platelet, surgery type, Marfan syndrome, operative time; Model IV, adjusted for age, sex, alcohol consumption, diabetes mellitus, cerebrovascular disease, chronic renal failure, autologous blood (≥ 500 ml), cryoprecipitate, RBCs, plasma, platelet, operative time

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