Table 1 Characteristics of the 1062 patients stratified by UUC status
From: Chronic hepatitis B virus infection increases the risk of upper urinary calculi
UUC (n = 514) | Non-UUC (n = 548) | P value | |
|---|---|---|---|
Age (yr) | 52 (43, 62) | 62.5 (46, 73) | < 0.001 |
Sex, n (%) | < 0.001 | ||
Males | 310 (60.3) | 404 (73.7) | |
Females | 204 (39.7) | 144 (26.3) | |
Geographical residence, n (%) | 0.725 | ||
Rural | 96 (18.6) | 107 (19.5) | |
Urban | 418 (81.4) | 441 (80.5) | |
History, n (%) | |||
Blood transfusion | 3 (0.6) | 2 (0.4) | 0.678 |
Haemodialysis | 3 (0.6) | 1 (0.2) | 0.359 |
Surgery | 263 (51.2) | 254 (46.4) | 0.117 |