Table 4.

Threshold effect analysis for fasting blood glucose levels using two-piece-wise Cox proportional hazards model.

	CRC/population	Unadjusted HR (95% CI)
The one-line Cox proportional hazards model	132/11,587	1.17 (1.05, 1.29)
The two-piece-wise Cox proportional hazards model
<126 mg/dL (increasing per mmol/L)	114/10,830	1.07 (0.90, 1.29)
≥126 mg/dL (increasing per mmol/L)	18/757	1.27 (1.06, 1.53)
P for log–likelihood ratio test		.283

A log–likelihood ratio test was used to compare the one-line linear regression. In this part, 45 participants were excluded for over the 99th percentile.

CRC = colorectal cancer, HR, hazard ratio.