Interval Colorectal Cancers following Guaiac Fecal Occult Blood Testing in the Ontario ColonCancerCheck Program

Table 4

Death from any cause following CRC by baseline and subsequent gFOBT screens.

Variable	CRC ≤ 24 months following baseline gFOBT	CRC ≤ 24 months following subsequent gFOBT
	Hazard ratio (95% confidence interval)	Hazard ratio (95% confidence interval)
Positive gFOBT result	Reference	Reference
Normal gFOBT result	1.65 (1.32, 2.05)	1.71 (1.00, 2.91)
Female	0.85 (0.68, 1.07)	0.79 (0.46, 1.34)
Male	Reference	Reference
Distal anatomic CRC site	0.75 (0.61, 0.94)	0.41 (0.24, 0.70)
Another anatomic CRC site	Reference	Reference
Age, per one-year increase	1.04 (1.02, 1.05)	1.02 (0.97, 1.06)