Psychometric evaluation of the modified 19-item Bengali version of WHOQOL scale using Rasch analysis: a cross-sectional study of a rural district in Bangladesh

Table 3 DIF on age, gender, educational attainment and socio-economic conditions of the four domains of 19-item modified WHOQOL scale

	DIF on Age			DIF on Gender			DIF on Education			DIF on Socio-economic Status
	MS	F	P*	MS	F	P*	MS	F	P*	MS	F	P*
Physical domain
Pain (3)	0.72	1.28	0.26	1.24	2.24	0.14	1.03	1.84	0.18	0.01	0.02	0.89
Dependence of medical aids (4)	1.45	1.46	0.23	2.59	2.56	0.11	2.22	2.50	0.05	0.51	0.51	0.48
Energy (10)	0.79	1.03	0.31	2.30	3.85	0.05	3.34	4.37	0.06	0.00	0.00	0.98
Mobility (15)	3.44	4.43	0.04	0.00	0.00	0.95	2.86	3.68	0.06	2.50	3.52	0.05
Activities of daily living (17)	0.17	0.24	0.62	0.68	0.94	0.33	1.46	2.03	0.16	1.61	2.24	0.14
Psychological domain
Positive feeling (5)	0.17	0.22	0.64	0.08	0.11	0.75	0.15	0.19	0.67	0.12	0.15	0.70
Concentration (7)	1.36	1.89	0.17	0.02	0.03	0.85	0.59	0.82	0.37	1.17	1.62	0.21
Bodily image (11)	1.74	2.20	0.14	0.90	1.13	0.29	0.89	1.12	0.29	0.45	0.56	0.45
Self-esteem (19)	0.22	0.33	0.57	0.67	0.96	0.33	0.01	0.02	0.89	0.03	0.04	0.84
Social domain
Personal relationship (20)	1.08	1.85	0.18	0.04	0.08	0.78	0.01	0.01	0.91	0.09	0.16	0.69
Sexual activity (21)	1.81	2.68	0.10	0.22	0.31	0.58	0.17	0.26	0.61	1.10	1.60	0.21
Social support (22)	0.28	0.38	0.54	0.64	0.89	0.35	0.02	0.03	0.86	1.21	1.69	0.20
Environmental domain
Security (8)	0.99	1.29	0.26	1.32	1.72	0.19	1.88	2.47	0.12	0.02	0.02	0.88
Physical environment (9)	2.76	3.65	0.06	0.10	0.14	0.71	2.35	3.10	0.08	4.05	5.54	0.06
Financial support (12)	1.97	2.29	0.13	0.06	0.07	0.79	0.56	0.64	0.42	5.17	6.15	0.05
Accessibility of information (13)	2.12	2.93	0.09	0.03	0.04	0.85	0.02	0.03	0.87	0.55	0.77	0.38
Leisure activity (14)	0.03	0.03	0.85	5.13	6.08	0.01	0.01	0.01	0.93	0.21	0.25	0.62

*P ≤ 0.01 indicates significant difference after Bonferroni corrections for five items for the physical and the environmental domain. (any p values > 0.01 will be considered non-significant at 0.05 level)
MS Mean square and F F test value.

ISSN: 2050-7283