| Variables | Before the intervention n (%) | After the intervention n (%) | p-valuea |
| Cleaning of dirty surfaces, plates and utensils |
|
| 0.0001 |
| Know | 211 (87.6) | 224 (92.6) |
|
| Don’t know | 30 (12.4) | 18 (7.4) |
|
| Storage of perishable foods |
|
| 0.0001 |
| Know | 128 (53.6) | 223 (92.1) |
|
| Don’t know | 111 (46.4) | 19 (7.9) |
|