Table 3.
Comparison between the recurrence group and the nonrecurrence group in female patients
| Recurrent group (n = 13) | Nonrecurrent group (n = 21) | p value | |
|---|---|---|---|
| Median Age (range) | 57 (35ཞ79) | 74 (43ཞ90) | 0.123 |
| Previous stone episodes before surgery (n) | 6 | 8 | 0.728 |
| The number of stones at surgery: Single/Multiple (n) | 6/7 | 10/11 | 1 |
| Residual fragment * at the primary evaluation (n) | 3 | 6 | 1 |
| Median BMI at surgery | 22 (15ཞ29) | 24 (17ཞ43) | 0.0978 |
| Median WA at the primary evaluation (range, mm2) | 46,221 (31999ཞ56746) | 53,077 (30754ཞ106925) | 0.137 |
| Median WA at the secondary evaluation (range, mm2) | 45,097 (33575ཞ56562) | 57,664 (30729ཞ110072) | 0.0503 |
| Median change of WA (range, ±mm2) | −2175 (−8054ཞ+13098) | + 3019 (−12625ཞ+17719) | 0.0386 |
| Median change of WA per year (range, ±mm2/year) | −363(−6041ཞ+4793) | + 708 (−6313ཞ+13207) | 0.0503 |
WA Waist area, BMI Body Mass Index
*Diameter longer than 2 mm on CT images