Table 4 Characteristics of stones among patients with UUC stratified by HBsAg status
From: Chronic hepatitis B virus infection increases the risk of upper urinary calculi
Patients with UUC | OR (95% CI) | P value | ||
|---|---|---|---|---|
HBsAg-positive (n = 41) | HBsAg-negative (n = 473) | |||
Number of stones, n (%) | 1.029 (0.541–1.957) | 0.930 | ||
1 | 18 (43.9) | 211 (44.6) | ||
≥ 2 | 23 (56.1) | 262 (55.4) | ||
Side of stones, n (%) | 1.267 (0.652–2.462) | 0.739 | ||
Unilateral | 26 (63.4) | 325 (68.7) | ||
Bilateral | 15 (36.6) | 148 (31.3) | ||
Staghorn stone, n (%) | 8 (19.5) | 40 (8.5) | 2.624 (1.136- 6.064) | 0.043 |
History of UUC, n (%) | 12 (29.2) | 132 (27.9) | 1.069 (0.530–2.157) | 0.852 |