Table 4.
Bacterial reduction after enhanced disinfection with UV-C in contact precaution patient room surfaces.
| Author | High-touch surface | Sample size | % Reduction after standard | % Reduction after UV |
|---|---|---|---|---|
| Kitagawa et al., 2020 | Bed rail | 11 | 47% | 74% |
| Hoesin et al., 2016 | Bedrail | 28 | 100% | 0% |
| Jinadatha et al., 2014 1 | Bedrail | 10 | 96% | 100% |
| Kitagawa et al., 2020 | Bed control panel | 11 | 53% | 95% |
| Ali et al., 2017 (S) | Bed control panel | 6 | 100% | −800% |
| Ali et al., 2017 (U) | Bed control panel | 6 | 83% | 100% |
| Jinadatha et al., 2014 1 | Call button | 10 | 87% | 95% |
| Ali et al., 2017 (S) | Nurse call button (front) | 6 | 78% | 100% |
| Ali et al., 2017 (U) | Nurse call button (front) | 6 | 99% | 100% |
| Ali et al., 2017 (S) | Nurse call button (back) | 6 | 79% | 100% |
| Ali et al., 2017 (U) | Nurse call button (back) | 6 | 98% | 100% |
| Kitagawa et al., 2020 | Over table | 11 | 96% | 92% |
| Kitagawa et al., 2020 | Bedside table | 11 | 72% | 10% |
| Ali et al., 2017 (S) | Bedside table | 6 | 76% | 100% |
| Ali et al., 2017 (U) | Bedside table | 6 | 91% | 100% |
| Hoesin et al., 2016 | Tray table | 39 | 100% | 0% |
| Jinadatha et al., 2014 1 | Tray table | 10 | 93% | 99% |
| Ali et al., 2017 (S) | Floor corner | 6 | −572% | 100% |
| Ali et al., 2017 (U) | Floor corner | 6 | −215% | 98% |
| Wong et al., 2016 2 | Floors | 61 | −145% | 99% |
| Kitagawa et al., 2020 | Toilet seat | 9 | 77% | 11% |
| Ali et al., 2017 (S) | Toilet flush | 6 | 100% | 0% |
| Ali et al., 2017 (U) | Toilet flush | 6 | 90% | 100% |
| Ali et al., 2017 (S) | Toilet seat | 6 | 97% | 0% |
| Ali et al., 2017 (U) | Toilet seat | 6 | 87% | 100% |
| Hoesin et al., 2016 | Toilet seat | 39 | 79% | 100% |
| Jinadatha et al., 2014 1 | Toilet seat | 10 | 31% | 99% |
| Ali et al., 2017 (S) | Toilet handrail | 6 | 100% | 0% |
| Ali et al., 2017 (U) | Toilet handrail | 6 | 100% | 0% |
| Hoesin et al., 2016 | Bathroom handrail | 39 | 67% | 100% |
| Jinadatha et al., 2014 1 | Bathroom handrail | 10 | 77% | 98% |
Percent reductions reported were based on reported reductions in either median or total CFUs reported before standard disinfection, after standard disinfection, and after UV-C treatment in patient room surfaces where contact precaution patients were assigned for a minimum of 48 h before discharge. High-touch surfaces are grouped into clusters based on similarity between studies.
1Studies reported reductions in bacterial burden based on two-arm intervention, where the baseline for UV-C effectiveness was an independent sampling of uncleaned patient rooms after discharge rather than after standard room disinfection, reflecting the effectiveness of UV-C compared to null rather than standard operating procedures.
2Wong et al., reported only mean CFUs. (S) Surfacide intervention and (U) Ultra-V intervention were both UV-C treatments carried out within the same population/study.