Association of Lactate Dehydrogenase with In-Hospital Mortality in Patients with Acute Aortic Dissection: A Retrospective Observational Study

Table 4

The results of two-piecewise linear model.

	Mortality (OR, 95% CI)	value
Fitting model by standard linear regression (per 100 increment)	1.09 (1.05, 1.13)	<0.001
Fitting model by two-piecewise linear regression (per 100 increments)
Inflection point of lactate dehydrogenase	557
≤557	0.90 (0.74, 1.10)	0.296
>557	1.12 (1.06, 1.19)	<0.001
for log-likelihood ratio test	0.048

Abbreviations: CI, confidence interval; OR, odds ratio. Adjusted: age, gender, BMI, hypertension, diabetes, stroke, atherosclerosis, smoking, symptom, systolic blood pressure, diastolic blood pressure, type of AAD (Stanford), admission of white blood cell, hemoglobin, alanine transaminase, aspartate aminotransferase, albumin, creatinine, and management.