Table 1. Demographics and underlying diseases of the study subjects.
| Characteristics | No. (%), total = 827 |
|---|---|
| Age (years, mean ± SD) | 55.4 ± 19.0 |
| Sex | |
| Male | 54 (6.5) |
| Female | 773 (93.5) |
| Co-morbidity | |
| Cerebrovascular disorder | 77 (9.3) |
| Congestive heart failure | 41 (5.7) |
| Connective tissue disease | 13 (1.6) |
| Malignancy | 30 (3.6) |
| Chronic pulmonary disease | 21 (2.5) |
| Liver disease | 27 (3.3) |
| Pregnancy | 8 (1.0) |
| Diabetes mellitus | |
| Chronic renal disease | 50 (6.0) |
| Underlying urinary tract abnormality | |
| Hyperplasia of prostate | 11 (1.3) |
| Neurogenic bladder | 7 (0.8) |
| Urolithiasis | 14 (1.7) |
| Vesicoureteral reflux | 3 (0.4) |
| Intermittent catheterization | 6 (0.7) |
| Polycystic kidney disease | 7 (0.8) |
| Past history | |
| History of admission within 1 year | 192 (23.2) |
| History of antibiotics use within 1 year | 232 (28.1) |
| History of urinary tract infection within 1 year | 99 (12.0) |