Table 2 Validity values of skin and NC culture and superficial culture (skin + hubs) for prediction of catheter colonization and C-RBSI
From: Vascular catheter colonization: surveillance based on culture of needleless connectors
CULTURE | S% 95% CI | SP% 95% CI | PPV% 95% CI | NPV% 95% CI | Validity index 95% CI | Prevalence 95% CI | LR+ 95% CI | LR- 95% CI |
|---|---|---|---|---|---|---|---|---|
Catheter colonization | ||||||||
Skin+NCs | 77.8 (45.0-100) | 52.9 (38.3-67.6) | 22.6 (6.2-38.9)- | 93.1 (82.2-100) | 56.7 (43.3-70.0) | 15.0 (5.1-24.9) | 1.65 (1.05-2.60) | 0.42 (0.12-1.46) |
Skin+hubs | 66.7 (30.3-100) | 86.3 (75.8-92.0) | 46.1 (15.2-77.1) | 93.6 (85.6-100) | 83.3 (73.0-93.6) | 15.0 (5.1-24.9) | 4.86 (2.12-11.13) | 0.39 (0.15-0.98) |
C-RBSI | ||||||||
Skin+NCs | 100 (75.0-100) | 50.0 (36.3-63.7) | 6.4 (0.0-16.7) | 100 (98.3-100) | 51.7 (38.2-65.1) | 3.3 (0.0-8.7) | 2.00 (1.55-2.59) | NA |
Skin+hubs | 100 (75.00-100) | 81.0 (70.0-91.9) | 15.4 (0.0-38.8) | 100 (98.9-100) | 76.8 (67.0-86.6) | 3.3 (0.0-8.7) | 5.27 (3.10-8.98) | NA |