Table 12.

Multitrait scaling of PDQ-39 items (N = 96)

	Mobility	Activities of Daily Living	Emotion Well-Being	Stigma	Social Support	Cognitions	Communication	Bodily Discomfort
Mobility
Leisure activities	0.65a	0.58	0.54	0.37	0.51	0.49	0.49	0.42
Looking after home	0.79a	0.63	0.36	0.28	0.22	0.36	0.46	0.56
Carry shopping bags	0.87a	0.67	0.33	0.23	0.22	0.25	0.42	0.46
Walk half mile	0.83a	0.64	0.30	0.20	0.33	0.28	0.37	0.46
Walk 100 yards	0.79a	0.59	0.25	0.23	0.24	0.22	0.32	0.41
Getting around house	0.66a	0.62	0.24	0.21	0.27	0.26	0.42	0.38
Getting around public	0.73a	0.62	0.37	0.31	0.36	0.37	0.53	0.48
Accompanied when out	0.62a	0.52	0.25	0.16	0.15	0.18	0.25	0.42
Worried about falling	0.70a	0.56	0.36	0.30	0.28	0.39	0.42	0.46
Confined to house	0.64a	0.51	0.50	0.28	0.44	0.41	0.43	0.44
Activities of Daily Living
Washing	0.76	0.76a	0.24	0.13	0.24	0.38	0.43	0.43
Dressing	0.75	0.84a	0.25	0.19	0.25	0.41	0.39	0.48
Buttons and laces	0.64	0.74a	0.22	0.16	0.24	0.44	0.32	0.42
Writing	0.46	0.62a	0.26	0.17	0.22	0.39	0.50	0.33
Cutting food	0.63	0.85a	0.31	0.26	0.27	0.48	0.53	0.49
Holding drink	0.50	0.57a	0.45	0.40	0.27	0.43	0.45	0.51
Emotional Well-Being
Depressed	0.33	0.29	0.76a	0.44	0.54	0.45	0.49	0.43
Isolated and lonely	0.51	0.41	0.71a	0.55	0.61	0.46	0.52	0.50
Weepy and tearful	0.39	0.32	0.78a	0.50	0.54	0.46	0.52	0.50
Angry and bitter	0.23	0.24	0.58a	0.46	0.46	0.37	0.38	0.41
Anxious	0.35	0.21	0.59a	0.50	0.48	0.29	0.34	0.27
Worried about future	0.27	0.19	0.63a	0.42	0.40	0.30	0.27	0.30
Stigma
Conceal PD	0.14	0.07	0.42	0.58a	0.36	0.18	0.13	0.31
Eating/drinking public	0.45	0.44	0.60	0.70a	0.48	0.39	0.43	0.50
Embarrassed	0.25	0.21	0.48	0.80a	0.41	0.23	0.35	0.35
Others reactions	0.28	0.19	0.59	0.89a	0.46	0.26	0.39	0.41
Social Support
Close relationships	0.40	0.30	0.64	0.47	0.73a	0.42	0.47	0.55
Support spouse	0.29	0.23	0.50	0.42	0.69a	0.32	0.37	0.37
Support friends/family	0.33	0.28	0.59	0.43	0.76a	0.28	0.43	0.34
Cognitions
Fall asleep day	0.25	0.28	0.17	0.09	0.15	0.45a	0.17	0.28
Concentration	0.35	0.40	0.47	0.37	0.33	0.46a	0.40	0.43
Memory	0.38	0.47	0.46	0.26	0.37	0.59a	0.50	0.46
Hallucinations	0.19	0.33	0.32	0.17	0.25	0.36a	0.23	0.41
Communication
Speech	0.45	0.50	0.35	0.24	0.33	0.32	0.69a	0.36
Communicate	0.43	0.43	0.39	0.28	0.31	0.33	0.73a	0.29
Ignored	0.41	0.41	0.67	0.48	0.63	0.53	0.42a	0.53
Bodily Discomfort
Muscle cramps/spasms	0.32	0.40	0.29	0.43	0.37	0.43	0.30	0.42a
Aches and pains	0.45	0.34	0.29	0.26	0.38	0.31	0.20	0.40a
Hot or cold	0.50	0.46	0.55	0.33	0.30	0.49	0.50	0.37a

Bold values = highest item-scale correlation for a given item, unless the highest item-scale correlation is with the scale in which that item is placed. Italics values = item-scale correlation is less than a half of standard error (0.05) below or is higher than the correlation of that item with the scale in which it is placed

^aItem’s original scale