Table 2.
Assessment of surface contamination by cultural technique (RODAC) and ATP-bioluminescence assay. Comparison between the operating rooms of Hospital A and Hospital B
| TVC (CFU/plate) | ATP-bioluminescence assay (RLU/100 cm2) | |||||||
|---|---|---|---|---|---|---|---|---|
| Total | Hospital A | Hospital B | P | Total | Hospital A | Hospital B | P | |
| Geometric mean | 1.8 | 2.2 | 1.5 | 0.01 | 32.7 | 37.7 | 29.8 | 0.19 |
| (CI 95%) | (1.6–2.0) | (1.7–2.8) | (1.3–1.8) | (27.5–38.9) | (29.6–48.1) | (23.5–37.9) | ||
| Median | 0 | 1 | 0 | 29 | 32 | 29 | ||
| (Range) | (0–41) | (0–41) | (0–16) | (4–510) | (8–356) | (4–510) | ||
CI: Confidence Interval