Table I.
Baseline parameters and estimates for the transmission of meticillin-resistant Staphylococcus aureus for volunteers in the Emergency Ward (EW) and Respiratory Intensive Care Unit (RICU) at Beijing Tongren Hospital
| Parameter | Symbol | Baseline value |
Source | |
|---|---|---|---|---|
| EW | RICU | |||
| Total number of beds | N | 23 | 7 | Tongren |
|
| ||||
| Total number of HCWs | H | 23 | 14 | Tongren |
|
| ||||
| Total admissions per day | X | 0.79 | 0.33 | Tongren |
|
| ||||
| Fraction of admissions per day | ||||
| Colonized patients | φ | 0.067 | 0.165 | Tongren |
|
| ||||
| Length of stay | ||||
| Uncolonized patients | 1/ δU | 13 | 7 | Tongren |
| Colonized patients | 1/δC | 20 | 13 | Tongren |
|
| ||||
| Hand hygiene compliance | ||||
| HCWs | η | 0.41 | 0.46 | Observed |
| Volunteers | ξ | 0.2 | 0.23 | Observed |
|
| ||||
| Transmission probability per contact | δ | 0.09 | Observed | |
|
| ||||
| Transmission rate | ||||
| Colonized patients to HCWs | β PH | 0.72 | Estimated | |
| Colonized patients to volunteers | β PV | 0.20 | Estimated | |
|
| ||||
| Duration of contamination | ||||
| HCWs | 1γH | 1/24 | 1/24 | Austin et al.13 |
| Volunteers | 1/γV | 1/12 | 1/12 | Tongren |
HCW, healthcare worker.