| Guideline | Overall measure of efficacya | Chi-Squareb | DF | p-value |
|---|---|---|---|---|
| Hand hygiene | 4.2 | 317.52 | 9 | < 0.001 |
| Remote services | 4.2 | |||
| Alcohol rub sanitizers at entrance | 4.2 | |||
| Signage at entrance | 4.1 | |||
| Mask for contact with symptomatic patients | 4.1 | |||
| Mask for symptomatic patients | 3.8 | |||
| Gloves and gown | 3.8 | |||
| Prohibited gathering over 10 people | 3.7 | |||
| questioning at entrance | 3.5 | |||
| Maintaining a distance of 2 m | 3.3 |