Table 2 Multiple variate analyses of UTUC patients’ characteristics in black-foot-disease (BFD) non-endemic and endemic area

 male

222

298

1

–

–

 female

305

369

0.899

0.714

1.132

0.365

Age

0.974

0.963

0.984

< 0.001

  < 50

29

47

 50 ~ 59

74

111

 60 ~ 69

139

210

  > 70

259

237

 NO

156

223

1

–

–

 YES

105

63

0.420

0.289

0.610

< 0.001

 NO

231

232

1

–

–

 YES

30

54

1.792

1.107

2.902

0.018

 stage 0a/0is

43

113

1

–

–

 stage I

106

150

0.538

0.350

0.828

0.005

 stage II

112

119

0.404

0.261

0.625

< 0.001

 stage III

125

137

0.417

0.272

0.639

< 0.001

 stage IV

30

98

1.243

0.725

2.131

0.429

 low grade

63

44

1

–

–

–

 high grade

340

320

1.348

0.891

2.039

0.158

 Renal pelvis

369

367

0.565

0.441

0.725

< 0.001

 Proximal ureter

111

117

0.842

0.630

1.126

0.246

 Middle ureter

60

98

1.416

1.003

1.999

0.048

 Distal ureter

103

140

1.160

0.871

1.544

0.310

 Bladder cuff

7

13

1.547

0.613

3.907

0.356

 Not available

1

13

1

–

–

–

 No

284

403

0.014

0.837

0.109

 Yes

216

192

0.009

0.528

0.068

 No

254

493

1

–

–

–

 Yes

105

47

0.231

0.158

0.336

< 0.001