Table 4.

Survival benefit from prompt colonoscopy vs delay for different rates of nosocomial infection per investigatory referral

Nosocomial infection rate for investigatory referral	Delay (months)	Age band
		30–39 years	40–49 years	50–59 years	60–69 years	70–79 years	80+ years
1%	2 months	0.09%	0.09%	0.08%	0.06%	0.04%	0.01%
	4 months	0.21%	0.22%	0.21%	0.20%	0.20%	0.19%
	6 months	0.35%	0.38%	0.36%	0.36%	0.37%	0.36%
2.5%	2 months	0.08%	0.09%	0.06%	0.01%	−0.08%	−0.22%
	4 months	0.20%	0.22%	0.19%	0.14%	0.07%	−0.05%
	6 months	0.35%	0.37%	0.34%	0.30%	0.24%	0.12%
5%	2 months	0.08%	0.08%	0.03%	−0.09%	−0.29%	−0.60%
	4 months	0.20%	0.21%	0.15%	0.04%	−0.14%	−0.44%
	6 months	0.34%	0.36%	0.30%	0.20%	0.02%	−0.28%

This analysis assumes no FIT triage. Green indicates survival benefit from prompt investigatory referral vs delay; red indicates survival disbenefit from prompt investigatory referral vs delay.