Number of studies (%) | ||
---|---|---|
Quantitative methodology | 89 | (77.4) |
Questionnaire | 80 | (69.6) |
Discrete choice experiments | 4 | (3.5) |
36-Item Short-Form Health Survey (SF-36) | 3 | (2.6) |
36-Item Short-Form Health Survey (SF-36) + Acceptance of Illness Scale (AIS) | 1 | (0.9) |
Parental Needs Scale for RD (PNS-RD) | 1 | (0.9) |
Mixed methodology | 25 | (20.9) |
Interview + Questionnaire | 11 | (9.6) |
Literature Review + Questionnaire | 5 | (4.3) |
Open-ended Questionnaire | 4 | (3.5) |
Literature Review + Discrete Choice Experiments | 2 | (1.7) |
Literature Review + Delphi Technique | 1 | (0.9) |
Discussion + Questionnaire | 1 | (0.9) |
Patient Records Analysis + Questionnaire | 1 | (0.9) |
Qualitative methodology | 1 | (0.9) |
Discussion | 1 | (0.9) |