Table 2.

Clinical features used for prediction.

Label	Age	Sex	Smoker	GI Bleeding
Colonoscopy	μ = 58.9	F = 159	Yes = 57	Yes = 12
	σ = 8.2	M = 196	Ex-smoker = 10	No = 343
			No = 274	Unknown = 0
			Unknown = 14
Normal	μ = 56.2	F = 364	Yes = 57	Yes = 8
	σ = 8.1	M = 269	Ex-smoker = 14	No = 623
			No = 540	Unknown = 2
			Unknown = 22