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["Additional Table 1.Baseline characteristics of the study population "]
[{"$nulls":4},"NO."]
["Overall",{"$nulls":3},327]
["Sex"]
[null,"Male",null,null,162,{"v":0.4954,"d":"49.54%"}]
[null,"Female",null,null,165,{"v":0.5046,"d":"50.46%"}]
["Age,years (mean, SD)",{"$nulls":3},47,"(SD 15.56)"]
["BMI (mean, range)",{"$nulls":3},22.68,"(20.44-25.16)"]
["Hypertension"]
[null,"Yes",null,null,61,{"v":0.1865,"d":"18.65%"}]
[null,"No",null,null,266,{"v":0.8135,"d":"81.35%"}]
["Diabetes"]
[null,"Yes",null,null,27,{"v":0.0826,"d":"8.26%"}]
[null,"No",null,null,300,{"v":0.9174,"d":"91.74%"}]
["Scr (median, IQR)",{"$nulls":3},94.5,"(IQR 79.00-127.25）"]
["eGFR (mean, IQR)",{"$nulls":3},64.86,"(IQR 48.99-80.71)"]
["CKD"]
[null,1,null,null,42,{"v":0.1284,"d":"12.84%"}]
[null,2,null,null,136,{"v":0.4159,"d":"41.59%"}]
[null,3,null,null,98,{"v":0.2997,"d":"29.97%"}]
[null,4,null,null,24,{"v":0.0734,"d":"7.34%"}]
[null,5,null,null,14,{"v":0.0428,"d":"4.28%"}]
[null,"Missing",null,null,13,{"v":0.0398,"d":"3.98%"}]
["Recurrence "]
[null,"Yes",null,null,97,{"v":0.2966,"d":"29.66%"}]
[null,"No",null,null,224,{"v":0.685,"d":"68.50%"}]
[null,"Missing",null,null,6,{"v":0.0183,"d":"1.83%"}]
["Stricture location"]
[null,"Proximal ",null,null,175,{"v":0.5352,"d":"53.52%"}]
[null,"Mid",null,null,61,{"v":0.1865,"d":"18.65%"}]
[null,"Distal",null,null,91,{"v":0.2783,"d":"27.83%"}]
["Dilatation side per patient"]
[null,"Left",null,null,160,{"v":0.4893,"d":"48.93%"}]
[null,"Right",null,null,167,{"v":0.5107,"d":"51.07%"}]
["Moderate-Severe  hydronephrosis"]
[null,"Yes",null,null,154,{"v":0.4709,"d":"47.09%"}]
[null,"No",null,null,173,{"v":0.5291,"d":"52.91%"}]
["Hydronephrosis side per patient"]
[null,"Left",null,null,124,{"v":0.3792,"d":"37.92%"}]
[null,"Right",null,null,127,{"v":0.3883,"d":"38.83%"}]
[null,"Bilateral",null,null,55,{"v":0.1682,"d":"16.82%"}]
[null,"Negative",null,null,21,{"v":0.0642,"d":"6.42%"}]
["Urinary  leukocyte (>16/ul)"]
[null,"Positive",null,null,242,{"v":0.7401,"d":"74.01%"}]
[null,"Negative",null,null,77,{"v":0.2355,"d":"23.55%"}]
[null,"Unknown",null,null,8,{"v":0.0244,"d":"2.44%"}]
["Urinary nitrite (NIT)"]
[null,"Positive",null,null,24,{"v":0.0734,"d":"7.34%"}]
[null,"Negative",null,null,295,{"v":0.9021,"d":"90.21%"}]
[null,"Unknown",null,null,8,{"v":0.0245,"d":"2.45%"}]
["Urinary culture"]
[null,"Bacteria"]
[null,null,"Positive",null,31,{"v":0.0948,"d":"9.48%"}]
[null,null,"Negative",null,281,{"v":0.8593,"d":"85.93%"}]
[null,null,"Unknown",null,15,{"v":0.0459,"d":"4.59%"}]
[null,"Fungus"]
[null,null,"Positive",null,10,{"v":0.0306,"d":"3.06%"}]
[null,null,"Negative",null,317,{"v":0.9694,"d":"96.94%"}]
[null,null,"Unknown",null,0,0]
["Dilation complicated by calculs"]
[null,"Yes",null,null,162,{"v":0.4954,"d":"49.54%"}]
[null,"No",null,null,165,{"v":0.5046,"d":"50.46%"}]
["Nature of strictures"]
[null,"Benignant",null,null,278,{"v":0.8502,"d":"85.02%"}]
[null,"Malignant",null,null,49,{"v":0.1498,"d":"14.98%"}]
["Approach"]
[null,"Retrograde",null,null,301,{"v":0.9205,"d":"92.05%"}]
[null,"Antegrade",null,null,26,{"v":0.0795,"d":"7.95%"}]
["Balloon size"]
[null,"F30",null,null,74,{"v":0.2262,"d":"22.62%"}]
[null,"F24",null,null,134,{"v":0.4098,"d":"40.98%"}]
[null,"F21",null,null,88,{"v":0.2691,"d":"26.91%"}]
[null,"F18",null,null,11,{"v":0.0337,"d":"3.37%"}]
[null,"Unknown",null,null,20,{"v":0.0612,"d":"6.12%"}]
["Dilatation time"]
[null,"< 5 minutes",null,null,169,{"v":0.5168,"d":"51.68%"}]
[null,"5-10 minutes",null,null,78,{"v":0.2385,"d":"23.85%"}]
[null,"> 10 minutes",null,null,50,{"v":0.1529,"d":"15.29%"}]
[null,"Unknown",null,null,30,{"v":0.0917,"d":"9.17%"}]
["Perioperative complication"]
[null,"Fever",null,null,61,{"v":0.1865,"d":"18.65%"}]
[null,"Pain",null,null,63,{"v":0.1926,"d":"19.26%"}]
["Stent retention time (median)",{"$nulls":3},180,"(IQR 90-187)"]
["Stent retention number"]
[null,1,null,null,154,{"v":0.4709,"d":"47.09%"}]
[null,2,null,null,173,{"v":0.5291,"d":"52.91%"}]
["Hospital stay in days (median, range)",{"$nulls":3},7,"(5-10)"]
["Stricture-free survival days (median, IQR)",{"$nulls":3},406,"(IQR 93-852)"]
["Median totall follow-up days (median, IQR)",{"$nulls":3},590,"(IQR 335-1024)"]
["BMI body mass index, eGFRestimated glomerular filtration rate, CKD chronic kidney disease, IQR interquartile range, SD standard deviation"]