Analysis of the efficacy and safety of endoscopic retrograde cholangiopancreatography for the treatment of pediatric pancreatobiliary diseases

Table 1 General data comparison, n (%)

Factor	Observation group (n = 52)	Control group (n = 49)	χ2	P value
Gender			0.013	0.909
Male	27 (51.92)	26 (53.06)
Female	25 (48.08)	23 (46.94)
Age (years)			0.058	0.809
≤ 7	32 (61.54)	29 (59.18)
> 7	20 (38.46)	20 (40.82)
BMI (kg/m2)			0.016	0.899
≤ 16	28 (53.85)	27 (55.10)
> 16	24 (46.15)	22 (44.90)
JSGPM-PBM[10]			0.050	0.997
A	16 (30.77)	15 (30.61)
B	15 (28.85)	15 (30.61)
C	13 (25.00)	12 (24.49)
D	8 (15.38)	7 (14.29)

BMI: Body mass index.