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Table 3 Comparison of Stone-Free and non-Stone-Free patients

From: Is it safe to use a ureteral access sheath in an unstented ureter?

Stone free status

Yes

No

Total

Univariate analysis

Multivariate analysis

p-value

p-value

OR

95% CI

N

127

33

160

    

Male gender (%)

77 (60.6%)

23 (69.7%)

100 (62.5%)

0.338

0.761

1.15

0.45-2.96

Age (median, range)

58 (18-83)

56 (24-74)

57 (18-83)

0.407

0.188

1.02

0.98-1.05

Number of stones (median, range, mean, SD)

1 (1-7) 1.4 ± 0.9

2 (1-5) 2.0 ± 1.2

1 (1-7) 1.5 ± 1.0

0.003

0.010

0.60

0.41-0.88

Stone Burden (cm3) (median, IQR)

3.3 (1.0-6.3)

4.4 (1.2-8.0)

3.3 (1.0-7.2)

0.194

0.993

1.00

0.92-1.08

Pre-operative hydronephrosis (%)

47 (37%)

15 (45.4%)

62 (38.7%)

0.411

0.182

1.88

0.74-4.78

UAS size (% wide)

66 (51.9%)

11 (33.3%)

77 (48.1%)

0.056

0.191

1.87

0.73-4.78

  1. Statistical significance was defined as p ≤ 0.05 and is shown in bold