Table 4 Univariate analysis of the risk factors for presence of adherence of the stone to the bladder mucosa at surgery (Fisher’s Exact test for categorical variables and Independent t test for continuous variables)
Variables | Adherence to mucosa | None | p value |
|---|---|---|---|
Mean ± standard deviation or percentage of total number of patients (% of 74) | |||
Age (year) | 61.9 ± 13 | 57.95 ± 14.4 | 0.499 |
Stone size (cm) | 7.5 ± 1.9 | 5.1 ± 0.82 | < 0.001 |
Duration of symptoms (month) | 17.3 ± 21.1 | 21.2 ± 28.2 | 0.431 |
Degree of symptoms | |||
Mild | 5.4 | 10.8 | 0.021 |
Moderate | 2.7 | 31.1 | |
Sever | 2.7 | 29.7 | |
Not assessed | 1.4 | 0 | |
Occupation | |||
Farmer | 27 | 48.6 | 0.010 |
Non-farmer | 1.4 | 23 | |
Stone surface | |||
Smooth | 1.4 | 28.4 | 0.009 |
Serrated | 0 | 59.5 | |
Spiky | 0 | 2.7 | |