Risk analysis of the association between different hemoglobin glycation index and poor prognosis in critical patients with coronary heart disease-A study based on the MIMIC-IV database

Table 3 Threshold effect analysis

	Mortality within 30 days	Mortality within 365 days
Standard Linear Regression Model	0.9 (0.8, 1.0) 0.047	1.0 (0.9, 1.0) 0.237
Two-stage regression models
inflection point (K)	0.1	-0.5
<K	0.8 (0.7, 0.8) < 0.001	0.8 (0.7, 0.9) < 0.001
>K	1.2 (1.0, 1.3) 0.021	1.1 (1.0, 1.1) 0.099
log-likelihood ratio test	< 0.001	< 0.001

ISSN: 1475-2840