| Methods |
|
| Participants |
|
| Interventions |
|
| Outcomes |
|
| Notes |
See Table 15
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
Unclear risk |
Method of allocation not described. |
| Allocation concealment (selection bias) |
Unclear risk |
Not described. |
| Blinding (performance bias and detection bias)
Subjective outcomes |
High risk |
Cases of Invasive aspergillosis were recorded as suspected or proven. Staff would have been aware of intervention. |
| Blinding (performance bias and detection bias)
Objective outcomes |
High risk |
Staff would have been aware of presence or absence of portable air filtration units. |
| Incomplete outcome data (attrition bias)
All outcomes |
Unclear risk |
Withdrawals and drop‐outs not described. It is unclear if outcome data are complete. |
| Selective reporting (reporting bias) |
Unclear risk |
Not known. |
| Protection from contamination? |
Low risk |
Intervention assigned to patient rooms. |
