Table 3 Univariate analysis of the risk factors of occurrence of iLUTS as the main presenting symptoms in patients with giant bladder stones (Fisher’s Exact test for categorical variables and One-way ANOVA for continuous variables)
Variables | Accidental | iLUTS | iLUTS with hematuria | p value |
|---|---|---|---|---|
Percentage of total number of patients (% of 74) or Mean ± SD | ||||
Stone number | ||||
Single | 1.4 | 85.1 | 2.7 | < 0.001 |
Multiple | 0 | 5.4 | 5.4 | |
Stone surface | ||||
Smooth | 1.4 | 28.4 | 0 | 0.009 |
Rough | 0 | 59.5 | 5.4 | |
Spiky | 0 | 2.7 | 2.7 | |
Association with ureteral stones | ||||
Present | 1.4 | 16.2 | 4.1 | 0.002 |
None | 0 | 74.3 | 4.1 | |
Age (year) | 7.7 | 63 | 3 | 0.806 |
Stone size (cm) | 5.8 ± 1.7 | 59.2 ± 14.3 | 21 ± 27.3 | 0.438 |
Duration of the diseases (month) | 5.4 ± 1.6 | 55.7 ± 12.7 | 9.3 ± 2.1 | 0.559 |