Measuring the impact of health problems among adults with limited mobility in Thailand: further validation of the Perceived Impact of Problem Profile

Table 2 Individual item fit statistics for PIPP Impact scale items

		Location	SE	Fit Residual	DF	Chi Sq	DF	Prob
Self-care
4	Wash self	0.13	0.11	-1.21	105.45	7.96	2	0.02
5	Use toilet	-1.24	0.12	0.27	106.18	1.07	2	0.59
6	Dress self	-0.06	0.11	-0.12	106.18	6.99	2	0.03
7	Feed self	1.18	0.13	1.21	106.18	3.33	2	0.19
Mobility
9	Sit/stand	0.26	0.13	1.80	125.48	1.72	2	0.42
11	Use vehicle	-0.21	0.13	1.26	98.39	0.38	2	0.83
12	Move – house	0.38	0.11	-1.64	125.48	3.85	2	0.15
13	Move – neighbourhood	-0.43	0.12	-0.67	117.64	5.38	2	0.07
Relationship
14	People in authority	-0.86	0.12	0.48	86.58	0.52	2	0.77
15	Neighbours & friends	-0.21	0.11	-0.10	97.94	3.28	2	0.19
16	Relatives	-0.10	0.11	-1.01	98.65	8.27	2	0.02
17	Close relationship	1.18	0.13	1.15	90.84	2.82	2	0.24
Participation
8	Assist family members	0.40	0.1	1.06	117.44	0.07	2	0.96
18	Family activities	0.15	0.10	0.32	121.9	5.31	2	0.07
19	Community activities	-0.20	0.10	0.71	119.67	0.43	2	0.81
20	Activities you enjoy	0.32	0.10	1.09	110.01	2.19	2	0.33
21	Work	-0.67	0.11	-0.39	86.97	1.38	2	0.50
Psychological
1	Overall life satisfaction	-0.30	0.10	1.26	144.62	1.44	2	0.49
2	Moods & feelings	-0.15	0.10	0.26	140.73	0.62	2	0.73
3	Confidence	0.05	0.10	1.36	131.4	0.03	2	0.98
22	Live independently	0.23	0.09	-0.95	145.4	6.13	2	0.05
23	Reliance on others	0.170	0.09	0.07	143.84	2.04	2	0.36

SE = Standard Error, DF = degrees of freedom, ChiSq = Chi square, Prob = probability All probability values non-significant after Bonferroni adjustment for the number of items in each subscale.

ISSN: 1477-7525