Table 4 Assessment of surface contamination by cultural technique (RODAC) and ATP-bioluminescence assay. Comparison of the different sampled surfaces
Sampled surfaces | TVC (RODAC) (CFU/plate) | ATP-Bioluminescence assay (RLU/100 cm2) | ||||||
|---|---|---|---|---|---|---|---|---|
Geometric mean | CI 95% | Median | Range | Geometric mean | CI 95% | Median | Range | |
medical anaesthesia trolley | 2.1 | 1.4–3.0 | 1 | 0–14 | 42.2 | 24.7–72.3 | 38 | 6–510 |
nurse’s computer touch screen | 1.1 | 1.0–1.4 | 0 | 0–3 | 29.9 | 17.8–50.2 | 30 | 4–480 |
operating table | 1.7 | 1.2–2.5 | 0 | 0–13 | 35.7 | 21.6–58.9 | 31 | 5–468 |
vitals monitor | 1.4 | 1.1–1.7 | 0 | 0–3 | 29.6 | 19.7–44.2 | 32 | 5–172 |
anaesthetist’s computer touch screen | 1.6 | 1.1–2.4 | 0 | 0–16 | 27.2 | 18.2–40.8 | 26 | 5–102 |
surgical lighting | 2.6 | 1.6–4.1 | 1 | 0–41 | 60.5 | 37.4–98.1 | 42.5 | 13–357 |
Instrument table | 2.4 | 1.7–3.4 | 1 | 0–10 | 18.4 | 12.4–27.2 | 13.5 | 4–106 |