Longitudinal changes and patterns in cardiometabolic index and the natural course of prediabetes in the China health and retirement longitudinal study

Table 5 The result of the two-piecewise Cox regression model

	HR (95%CI)	P-value
Fitting model by two-piecewise cox regression
The inflection point of CumCMI	0.37
< 0.37	10.56 (3.40, 32.80)	< 0.0001
> 0.37	1.13 (0.57, 2.23)	0.7351
P for log likelihood ratio test	0.004

Abbreviations: HR hazard ratios, CI confidence interval, CumCMI cumulative CMI

ISSN: 1476-511X