Table 5. Comparison of the groups for age, risk factor, number of UTI within the last six months, leucocyturia and number of positive culture.
| Primary SS (n=107) | Rheumatoid arthritis (n=40) | Control (n=53) | p | ||||||||||
| n | % | Mean±SD | Min-Max | n | % | Mean±SD | Min-Max | n | % | Mean±SD | Min-Max | ||
| Age (year) | 50.7±11.6 | 51.7±14.2 | 25-79 | 46.8±15.5 | 21-78 | NS | |||||||
| Risk factors | 17 | 10 | 7 | NS | |||||||||
| Average number of UTIs in last six months | 27* | 4 | 5 | 0.013 | |||||||||
| Leukocyturia** | 21 | 19.6 | 14 | 35 | 17 | 32 | NS | ||||||
| Number of positive | 18 | 16.8 | 8 | 20 | 2 | 3.7 | 0.04 | ||||||
| SD: Standard deviation; Min: Minimum; Max: Maximum; SS: Sjögren’s syndrome; * This difference was due to SS; ** Leukocyturia: leukocyte >5/high power field. | |||||||||||||