The Oxford Participation and Activities Questionnaire (Ox-PAQ): development of a short form and index measure

Figures & data

Table 1 Sample characteristics

Condition	n	Male: Female	Mean age in years (SD)	Mean age at diagnosis in years	Mean disease duration in years
COPD	47	16: 31	65.47 (6.55)	58.26 (8.30)	7.21 (5.48)
MS	110	28: 82	54.10 (11.44)	39.24 (10.97)	14.85 (11.67)
PD	183	97: 86	65.01 (8.99)	59.07 (9.40)	5.93 (4.44)
Total	340	141: 199	61.52 (10.87)	52.51 (13.45)	9.01 (8.68)

Abbreviations: COPD, Chronic Obstructive Pulmonary Disease; MS, multiple sclerosis; PD, Parkinson’s Disease.

Table 2 Items found to be significantly predictive (p≤0.01) of their own scale scores in three independent linear regressions

Ox-PAQ Item Number*	Item (abridged wording)	Adjusted R2
Routine Activities		0.88
1	Getting up in morning
6	Daily activities for enjoyment
7	Doing work, paid or unpaid
8	Social life
9	Leisure activities
13	Engaging in community life
14	Being as independent as would like
Emotional Well-being		0.77
19	Lacking control over life
21	Feeling anxious
23	Feeling depressed
Social Engagement		0.88
11	Maintaining close relationships
12	Maintaining friendships
15	Engaging in community life
18	Communicating successfully with people

Note: *Item numbers correspond with the 23-item Ox-PAQ.⁸

Table 3 Comparison of results from the Ox-PAQ summary index against those derived from the SF-Ox-PAQ Summary Index across three conditions

Condition (n) and measure	Mean (S.D)	Min	Max 95% CI
COPD (=47)
Ox-PAQ Index	54.87 (22.04)	4.52	92.80 48.57–61.17
SF-Ox-PAQ Index	55.43 (22.98)	3.57	91.07 48.86–62.00
MS (n=110)
Ox-PAQ Index	51.70 (22.17)	2.38	96.73 47.56–55.84
SF-Ox-PAQ Index	52.33 (23.06)	0	96.43 48.02–56.64
PD (n=183)
Ox-PAQ Index	35.02 (21.90)	0	90.83 31.85–38.19
SF-Ox-PAQ Index	34.87 (23.14)	0	94.64 31.52–38.22

Abbreviations: COPD, Chronic Obstructive Pulmonary Disease; MS, Multiple Sclerosis; PD, Parkinson’s Disease.

Morley D, Dummett S, Kelly L, Dawson J, Fitzpatrick R, Jenkinson C. Ox-PAQ User Manual. Oxford: Health Services Research Unit; 2016.

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Availability of data and material

The datasets analysed for the current study are available from the corresponding author on reasonable request.