Additional file 3: of Analysis of resources assisting in coping with swallowing difficulties for patients with Parkinson’s disease: a cross-sectional study

APPENDIX of Questions Extracted from the SDQ for the Study Here. Fourteen questions (1 to 14) were rated by a four-point (0 to 3) scale (0 for no disability and 3 for severe disability) and one (question 15) was a "yes/no" question (yes was scored 2.5 and no was scored 0.5). (DOCX 35 kb)