Table 1.

Characteristics of the included studies

Ref.	Country	Type of study	Total no. of patients	Groups	BMI groups	Sample size
Bota et al[32]	Romania	Retrospective	334	Mild		207
				Severe		127
Duarte-Rojo et al[18]	Mexico	Prospective	99	Mild		74
				Severe		25
Funnel et al[29]	South Africa	Prospective	99		< 19	15
					19-25	48
					26-29	17
					≥ 30	19
Karpavicius et al[23]	Lithuania	Prospective	102	Mild and moderate		82
				Severe		20
Katuchova et al[21]	Slovakia	Prospective	384	IEP		293
				SAP		91
Mery et al[25]	Mexico	Prospective	88		< 25	34
					25-29.9	32
					≥ 30	22
Papachristou et al[8]	United States	Prospective	102		< 30	74
					≥ 30	28
Párniczky et al[5]	Hungary	Prospective, multicenter	446		< 18.5	26
					18.5-24.9	136
					25-29.9	154
					30-34.9	86
					35-39.9	24
					> 40	20
Sharma et al[30]	United States	Prospective	128		< 30	87
					≥ 30	41
Shin et al[20]	South Korea	Retrospective	374		18.5-22.9	170
					23-24.9	96
					25-29.9	97
					≥ 30	11
Suazo-Barahona et al[26]	Mexico	Retrospective	150		< 25	65
					≥ 25	85
Taguchi et al[31]	Japan	Retrospective	6002		< 18.5	839
					18.5-24.9	3767
					25-29.9	1106
					30-34.9	220
					> 35	70
Thandassery et al[27]	India	Prospective	280		18.5-22.9	131
					23-24.9	83
					>25	66
Tsai et al[34]	Taiwan	Prospective	320		< 30	294
					≥ 30	26
Türkoglu et al[24]	Turkey	Prospective cohort study	92	Mild		62
				Severe		30
Yang et al[28]	China	Prospective, multicenter	161		≥ 25	82
					≥ 25	79
Yashima et al[22]	Japan	Prospective	124	Mild		76
				Severe		48
Yeung et al[19]	China	Prospective	101		< 25	19
					≥ 25	82
Yoon et al[17]	South Korea	Retrospective	203	Mild		128
				Moderate		62
				Severe		13

BMI: Body-mass index; IEP: Interstitial edematous pancreatitis; SAP: Severe acute pancreatitis.