Table 2.

Disease location in non-appendicectomised and appendicectomised patients at diagnosis and throughout the course of the disease

	Non-appendicectomised		Appendicectomised
	Initial location*	Cumulative location	Initial location	Cumulative location
No of patients	580	589	49	49
Proctitis	182 (31)	70 (12)	10 (20)	5 (10)
Proctosigmoiditis	172 (30)	112 (19)	12 (24)	12 (24)
Left sided colitis	122 (21)	168 (29)	17 (35)	13 (27)
Pancolitis	104 (18)	239 (41)	10 (20)	19 (39)

* Initial data were lacking in nine patients.

Values in parentheses are percentages.