Table 4.
Sensitivity and specificity of the method used for ascertaining six different types of healthcare-associated infections (HAIs) among 1474 patients enrolled at the University Medical Centre Ljubljana in the Slovenian national HAI prevalence survey in 2011, in comparison to the retrospective medical chart review and respective kappa coefficients by type of HAIs.
| Surveillance method | SSI | UTI | PN | LRI | BSI | CRI |
|---|---|---|---|---|---|---|
| RMCR (reference) | ||||||
| Number of HAIs | 15 | 21 | 19 | 8 | 12 | 0 |
| Prevalence of HAI episodes* (%) 95% CI |
1.0 (0.6-1.7) |
1.4 (0.9-2.2) |
1.3 (0.8-2.0) |
0.5 (0.3-1.1) |
0.8 (0.5-1.4) |
0 (0.0-0.3) |
| SNHPS | ||||||
| Number of HAIs | 15 | 20 | 26 | 7 | 13 | 0 |
| Prevalence of HAI episodes* (%) 95% CI |
1.0 (0.6-1.7) |
1.4 (0.9-2.1) |
1.8 (1.2-2.6) |
0.5 (0.2-1.0) |
0.9 (0.5-1.5) |
0 (0.0-0.3) |
| Sensitivity (%) 95% CI |
86.7 (59.5-98.3) |
76.2 (52.8-91.8) |
89.5 (66.9-98.7) |
62.5 (24.5-91.5) |
91.7 (61.5-99.8) |
/ |
| Specificity (%) 95% CI |
99.9 (99.5-100) |
99.7 (99.3-99.9) |
99.4 (98.8-99.7) |
99.9 (99.5-100) |
99.9 (99.4-100) |
100 (99.8-100) |
| Kappa coefficient 95% CI |
0.87 (0.74-1.00) |
0.78 (0.64-0.92) |
0.75 (0.61-0.89) |
0.67 (0.39-0.94) |
0.88 (0.74-1.00) |
/ |
*
on the day of SNHPS
SSI: surgical site infections. UTI: urinary tract infections. PN: pneumoniae. LRI: lower respiratory tract infections, excluding pneumoniae. BSI: bloodstream infections (including microbiologically proven catheter related infections). CRI: catheter-related infections without bloodstream infections. 95% CI: 95% confidence interval