Strategies for achieving successful cannulation in endoscopic retrograde cholangiopancreatography: A technical overview

Table 3 Selected studies reporting post-endoscopic retrograde cholangiopancreatography pancreatitis incidence, mean ± SD/n (%)[50-69]

Ref.	Country	Design	Total patients/females	Age, years	PEP incidence
Zhu[50]	China	Retrospective cohort	988/493 (49.9)	52.74 ± 9.81	52 (5.2)
Sharma et al[51]	India	RCT	144/109 (75.7)	51.7 ± 15.6	13 (9)
Palomera-Tejeda et al[52]	United States	Retrospective cohort	681/361 (53.0)	54.6 ± 16.1	12 (1.7)
Lou et al[53]	China	Retrospective cohort	6944/3450 (49.7)	60.7 ± 17.1	362 (5.2)
Hattori et al[54]	Japan	Retrospective cohort	98/231 (42.4)	68.8 ± 13.7	13 (5.6)
Jiang et al[55]	China	Retrospective cohort	193/ 89 (46.1)	54.13 ± 6.87	55 (28.5)
Chung et al[56]	Korea	Retrospective cohort	527/231 (43.8)	65.2 ± 16.2	45 (8.5)
Agarwal et al[57]	India	Retrospective cohort	769/426 (55.4)	48 ± 16	428 (55.7)
Parvin et al[58]	Bangladesh	Retrospective cohort	1042/446 (42.8)	54.08 ± 14	204 (19.6)
Makhzangy et al[59]	Egypt	RCT	120/66 (55.0)	43.8 ± 14.9	5 (4.2)
Aleem et al[60]	Pakistan	RCT	203/118 (58.1)	49.3 ± 15.4	32 (15.8)
Suzuki et al[61]	Japan	Retrospective cohort	1932/774 (40.1)	72.9	142 (7.4)
Romano-Munive et al[62]	Mexico	RCT	548/380 (69.3)	51.05 ± 20.9	24 (4.4)
Parvin et al[63]	Bangladesh	Retrospective cohort	125/51 (40.8)	55.76 ± 13.57	26 (20.8)
Deng et al[64]	China	Retrospective cohort	66/35 (53.0)	7.1 ± 4.3	19 (28.8)
Maruyama et al[65]	Japan	Retrospective cohort	168/102 (60.7)	70.1 ± 9.1	26 (15.5)
Ogura et al[66]	Japan	RCT	146/55 (37.7)	70.8 ± 9.8	27 (18.5)
Miyatani et al[67]	Japan	Retrospective cohort	60/41 (68.3)	61 ± 15	14 (23.3)
Kim et al[68]	Korea	Case control	258/136 (52.7)	61.83 ± 16.68	86 (33.3)
Debenedet et al[69]	United States	Case control	371/274 (73.9)	52.3 ± 15.9	123 (33.2)

PEP: Post-endoscopic retrograde cholangiopancreatography pancreatitis; RCT: Randomized controlled trial.