Table 2.
Wrong answers on Chagas knowledge scale and difficulty index of each question (N = 214)
| Knowledge item | Correct answer | Wrong answer | Difficulty index* | |
|---|---|---|---|---|
| n | % | |||
| Is CD endemic to the Americas? | Yes | 13 | 6.1 | 0.94 |
| Is CD endemic to Africa? | No | 75 | 35.0 | 0.65 |
| Is CD endemic to Europe? | No | 0 | 0.0 | 1.00 |
| Can CD be transmitted from mother to child? | Yes | 94 | 43.9 | 0.56 |
| Can CD be transmitted through blood transfusions? | Yes | 98 | 45.8 | 0.54 |
| Can CD be transmitted by kissing bugs? | Yes | 75 | 35.0 | 0.65 |
| Can CD affect the heart? | Yes | 9 | 4.2 | 0.96 |
| Can CD affect the stomach and bowels? | Yes | 24 | 11.2 | 0.89 |
| Is CD diagnosed via serology? | Yes | 41 | 19.2 | 0.81 |
| What drug is used to treat CD? | Benznidazole or nifurtimox | 190 | 88.8 | 0.11 |
CD = Chagas disease.
*
Difficulty index (0 to 1) calculated during the validation study of the knowledge scale7; lower values represent more difficulty.