2. Demographic and symptom details of included studies.

Study	Country	Number of patients	Age of the patients	Degree of piles	Symptoms	Mean duration of sym	Follow‐up duration
		RBL EH	Years (Mean / SD)	II III Others	Bleeding Prolapse	Months (Mean / SD)
			RBL EH		RBL EH RBL EH	RBL EH
Murie JA 1980	Great Britain	50 50	53(15) 50(12)	32 56 12	42 42 43 45	94(115) 112(104)	1 year
Cheng FCY 1981	Hong Kong	30 30	40 49	60 ‐ ‐	20 19 10 11	54 60	1 year
Lewis AAM 1983	Great Britain	30 26	46(15) 49(13)	‐ 33 23	‐ ‐ ‐ ‐	54 60	5/52 to 5 years
Total	3	110 106	‐ ‐	92 89 35	62 61 53 56	‐ ‐	‐