Uncovering Indicators of the International Classification of Functioning, Disability, and Health from the 39-Item Parkinson's Disease Questionnaire

Table 2

ICF classification of PDQ-39 items.

Item		ICF classification
No.	Contents (abridged)
1	Leisure activities	AP
2	Looking after home	AP
3	Carry shopping bags	AP
4	Walking half a mile	AP
5	Walking 100 yards	AP
6	Getting around the house	AP
7	Getting around in public	AP
8	Need company when going out	AP + E
9	Worry falling in public	BF + AP
10	Confined to the house	ND
11	Washing	AP
12	Dressing	AP
13	Do buttons or shoe laces	AP
14	Writing clearly	AP
15	Cutting food	AP
16	Hold a drink without spilling	AP
17	Depressed	BF
18	Isolated and lonely	BF
19	Weepy or tearful	BF
20	Angry or bitter	BF
21	Anxious	BF
22	Worried about the future	BF
23	Felt need to conceal PD	BF + E
24	Avoid eating/drinking in public	AP
25	Embarrassed due to PD	BF + E
26	Worried about people’s reactions	BF + E
27	Close relationships	AP
28	Support from partner	AP + E
29	Support from family or friends	E
30	Unexpectedly fallen asleep	BF
31	Concentration	BF
32	Poor memory	BF
33	Distressing dreams or hallucinations	BF
34	Speech	BF + AP
35	Unable communicate properly	AP
36	Felt ignored	BF + E
37	Painful cramps or spasms	BF
38	Pain in joints or body	BF
39	Unpleasantly hot or cold	BF

ICF: International Classification of Functioning, Disability and Health; AP: Activity and Participation; BF: Body Functions and Structures; E: Environment; ND: not definable.