Table 3.

Frequency of Biliary Changes in Patients with Extra-hepatic Portal Venous Obstruction.

Study	Year	n	Age mean and/or range	M/F	Frequency of biliary changes (%)	Symptomatic patients (%)
Dilawari and Chawla21	1992	20	22 (13–38)	16/4	100	5
Sarin et al19	1992	20	9–32	16/4	90	15
Khuroo et al49	1993	21	14 ± 8.8	13/8	81	38
Bayraktar et al22	1995	44	31.5 (9–67)	24/20	94	30
Malkan et al2	1999	20	23	12/8	85	10
Nagi et al50	2000	43	14–45	25/18	100	19
Condat et al23	2003	25	49.5	15/1	84	28
Sezgin et al51	2003	36	NA	NA	94	10
Dhiman et al24	2006	53	24.5 (13–56)	36/17	100	24.5
Chevallier et al52	2006	10	43.5 (29–56)	5/5	90	50
Llop et al29	2011	67	47 (19–77)	41/26	78	21
Total [median (range)]		262			90 (78–100)	21 (5–50)

NA, not available.