Volume 18, Number 8—August 2012
CME ACTIVITY
Vaccination of Health Care Workers to Protect Patients at Increased Risk for Acute Respiratory Disease
Table 2
Risk for bias by using the Downs and Black tool in a review of the vaccination of health care workers to protect patients at risk for acute respiratory disease
| Study | Type of score (maximum score)* |
||||
|---|---|---|---|---|---|
| Reporting (11) | External validity (3) | Internal validity, bias (7) | Internal validity, confounding (6) | Total (27) | |
| Ando et al. (30) | 5 | 2 | 2 | 1 | 10 |
| Shugarman et al. (35) | 6 | 0 | 1 | 3 | 10 |
| Kanaoka et al. (29) | 5 | 1 | 3 | 1 | 10 |
| Monto et al. (36) | 5 | 0 | 2 | 2 | 9 |
| Weinstock et al. (32) | 4 | 0 | 4 | 1 | 9 |
| Stevenson et al. (37) | 4 | 1 | 2 | 1 | 8 |
| Munford et al. (34) | 2 | 0 | 0 | 1 | 3 |
*Maximum score indicates lowest risk of bias for each domain.


