Table 5.

Theoretical and external validation of the Polish version of the FIMA questionnaire

	Theoretical validity, Pearson’s correlation
	FIMA1	FIMA2	FIMA3	FIMA4	FIMA5	FIMA7	FIMA8	FIMA9	FIMA10	FIMA11	FIMA12	FIMA14
T1	0.14	0.29	0.11	0.31	0.78	0.34	0.14	0.34	−0.04	0.20	0.76	0.19
p-value	0.28	0.02	0.41	0.01	<0.001	0.007	0.28	0.007	0.74	0.13	<0.001	0.15
T2	−0.02	0.31	0.07	0.29	0.81	0.37	0.09	0.34	−0.03	0.20	0.75	0.18
p-value	0.86	0.01	0.59	0.02	<0.001	0.003	0.50	0.008	0.85	0.13	<0.001	0.17
	External validity, Yule’s Q coefficient
	FIMA1	FIMA2	FIMA3	FIMA4	FIMA5	FIMA7	FIMA8	FIMA9	FIMA10	FIMA11	FIMA12	FIMA14
T1 EQ1 (mobility)	−0.50	0.37	0.51	1	0.86	1	−0.18	0.49	−0.30	−0.32	0.61	0.30
T1 EQ2 (self-care)	1	−0.42	0.81	1	0.87	0.63	0.33	1	−0.52	−0.11	0.26	1
T1 EQ3 (usual activities)	−1	0.18	0.56	1	0.69	1	−0.22	−0.02	−0.35	−0.35	0.23	0.33
T1 EQ4 (pain/discomfort)	−1	−0.21	1	1	0.53	−0.76	0.18	−1	0.20	−0.82	−0.59	−1
T1 EQ5 (anxiety/depression)	−0.52	0.16	1	1	0.50	0.52	0.14	−0.12	−0.19	−0.25	−0.11	0.24
T2 EQ1 (mobility)	−1	0.37	0.51	1	0.86	1	−0.18	0.49	−0.30	−0.32	0.61	0.30
T2 EQ2 (self-care)	1	−0.42	0.81	1	0.87	0.63	0.33	1	−0.52	−0.11	0.26	1
T2 EQ3 (usual activities)	−1	0.18	0.56	1	0.69	1	−0.22	−0.01	−0.35	−0.35	0.23	0.33
T2 EQ4 (pain/discomfort)	−1	−0.21	1	1	0.54	−0.76	0.18	−1	0.20	−0.82	−0.59	−1
T2 EQ5 (anxiety/depression)	1	0.16	1	1	0.50	0.53	0.14	−0.12	−0.19	−0.25	−0.11	0.24

Notes: T1, participant evaluation within 48 hours of admission; T2, participant evaluation 2 weeks after admission.

Abbreviations: EQ, EuroQol; FIMA, Fragebogen zur Inanspruchnahme medizinischer und nicht-medizinischer Versorgungsleistungen im Alter [Questionnaire for Health-Related Resource Use in an Elderly Population].