Table 1.

Clinical characteristics of the cases included in this study

Characteristic	CBA group (n=10)	CC group (n=35)	P-value
Maternal age (year)	31.0±4.5	28.5±3.8	0.453
Gestational age at diagnosis (week)	23.0±3.1	22.8±2.2	0.845
Sex			<0.001
Female	10 (100)	25 (71.4)
Male	0	10 (28.6)
Incidence (‰)	0.2	0.7	<0.001
Body weight (g)	3,131.0±229.8	3,304.0±364.0	0.164
Operation	10 (100)	25 (71.4)	<0.001

Values are presented as mean±SD or number (%) unless otherwie indicated.

CBA, cystic biliary atresia; CC, choledochal cyst; SD, standard deviation.