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["Table 1.Univariate and multivariate Cox analyses of patients with stricture recurrence after dilatation for stricture"]
[]
["Variable",null,"Univariate Analysis ",{"$nulls":3},"Multivariate Analysis "]
[null,null,"HR","95% CI","P value",null,"HR","95% CI","P value"]
["Nature of strictures",{"$nulls":3},"＜0.001",{"$nulls":3},"＜0.001"]
[null,"Benignant","1(ref)",{"$nulls":3},"1(ref)"]
[null,"Malignant","2.558","1.617-4.046","＜0.001",null,3.044,"2.457-3.771","＜0.001"]
["M-S hydronephrosis",{"$nulls":3},"0.017"]
[null,"No","1(ref)"]
[null,"Yes","1.657","1.090-2.519","0.018"]
["Urinary nitrite（NIT）",{"$nulls":3},"0.020",{"$nulls":3},0.041]
[null,"Negative","1(ref)",{"$nulls":3},"1(ref)"]
[null,"Positive","2.146","1.195-3.853","0.011",null,1.915,"1.489-2.461","＜0.001"]
["Urinary culture bacteria",{"$nulls":3},"0.043"]
[null,"Negative","1(ref)"]
[null,"Positive","1.882","1.064-3.327","0.030"]
["CKD",{"$nulls":3},"0.001",{"$nulls":3},0.005]
[null,1,"1(ref)",null,"＜0.001",null,"1(ref)"]
[null,2,"1.140","0.523-2.487","0.742",null,1.015,"0.734-1.398",{"v":0.9363,"d":"0.936"}]
[null,3,"2.055","0.953-4.432","0.066",null,{"v":1.46,"d":"1.460"},"0.966-2.206",{"v":0.0062,"d":"0.006"}]
[null,4,"2.458","0.947-6.384","0.065",null,1.561,"1.135-2.148",{"v":0.0724,"d":"0.072"}]
[null,5,"5.021","1.975-12.764","0.001",null,{"v":4.12,"d":"4.120"},"2.806-6.049","＜0.001"]
["Urine leukocyte",{"$nulls":3},"0.035"]
[null,"Negative","1(ref)"]
[null,"Positive","1.722","1.007-2.945","0.047"]
["Approach",{"$nulls":3},"0.028"]
[null,"Retrgrade","1(ref)",null,"0.028"]
[null,"Antegrade","2.414","0.981-5.941","0.055"]
["Location of stenosis",{"$nulls":3},"0.194"]
[null,"Proximal","1(ref)",null,"0.224"]
[null,"Mid","0.592","0.325-1.080","0.087"]
[null,"Distal","0.854","0.535-1.363","0.508"]
["Balloon size",{"$nulls":3},"0.044",{"$nulls":3},0.029]
[null,"F18","1(ref)",null,"0.035",null,"1(ref)"]
[null,"F21","0.677","0.235-1.953","0.471",null,0.943,"0.606-1.469",0.796]
[null,"F24","0.654","0.230-1.859","0.426",null,0.888,"0.577-1.367",{"v":0.59,"d":"0.590"}]
[null,"F30","1.273","0.448-3.613","0.650",null,1.814,"1.164-2.827",0.008]
["Dilatation time",{"$nulls":3},"0.026"]
[null,"< 5 minutes","1(ref)",null,"0.034"]
[null,"5-10 minutes","0.573","0.324-1.014","0.056"]
[null,"> 10 minutes","1.340","0.802-2.239","0.263"]
["Operation side per patient",{"$nulls":3},"0.504"]
[null,"Left","1(ref)"]
[null,"Right","0.873","0.586-1.301","0.504"]
["Stent retention time",{"$nulls":3},"＜0.001",{"$nulls":3},"＜0.001"]
[null,"< 3 months","1(ref)",null,"＜0.001",null,"1(ref)"]
[null,"3-6 months","0.996","0.584-1.700","0.989",null,1.13,"0.902-1.416",0.289]
[null,"> 6 months","3.302","2.015-5.412","＜0.001",null,3.043,"2.455-3.772","＜0.001"]
["Stent retention number",{"$nulls":3},0.291]
[null,1,"1(ref)"]
[null,2,1.243,"0.829-1.864",0.293]
["M-S hydronephrosis moderate severe hydronephrosis, CKD chronic kidney disease, CI confidence intervals"]