. 2019 Aug 18;51(4):653–659. [Article in Chinese] doi: 10.19723/j.issn.1671-167X.2019.04.010

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结石清除组与结石残留组肾下盏解剖因素比较

Comparison of low calyceal anatomic parameters between stone-free group and stone-residual group

Items	Stone-free group (n=75)	Stone-residual group (n=51)	P value
Statistical significance was set at P<0.05; b, Student’s t test; c, Mann-Whitney U test. PCH, pelvic caliceal height; IPA, infundibulopelvic angle; IL, infundibular length; IW, infundibular width.
PCH/mm, x±s	17.0±4.3	21.8±5.3	0.000^b
IPA/(°), median (min-max)	44.3 (29.2-71.5)	34.9 (22.3-44.6)	0.000^c
IL/mm, x±s	22.9±3.7	27.8±5.0	0.000^b
IW/mm, median (min-max)	7.3 (1.0-22.0)	6.8 (1.0-9.5)	0.076^c