Modes of Data Collection in Included Studies on Footwear Worn by People With Diabetes in Low- and Middle-Income Countries
| Method | Studies, No. |
|---|---|
| Interview | 2 |
| Investigator/interviewer-administered questionnaire | 6 |
| Participant-administered questionnaire | 4 |
| Questionnaire (unspecified) | 6 |
| Observation/exam | 3 |
| Unspecified | 4 |