Psychometric evaluation of a Canadian version of the Seattle Angina Questionnaire (SAQ-CAN)

Table 7 Correlation between SAQ-CAN and other measures

Instrument	SAQ-CAN				Original SAQ					Other measures
Instrument	IPF	OPF	ASB	TRE	PL	AS	AF	TS	DP	EQ5D_VAS	HADS_D	HADS_A
IPF	1
OPF	0.415	1
ASB	0.384	0.469	1
TRE	0.201	0.202	0.477	1
PL	0.619	0.958	0.534	0.237	1
AS	0.238	0.321	0.688	0.337	0.357	1
AF	0.314	0.369	0.842	0.358	0.426	0.475	1
TS	0.221	0.216	0.496	0.953	0.255	0.318	0.388	1
DP	0.363	0.444	0.901	0.459	0.504	0.493	0.578	0.478	1
EQ5D_VAS	0.293	0.298	0.394	0.281	0.347	0.259	0.265	0.282	0.412	1
HADS_D	− 0.061	− 0.016	− 0.067	− 0.059	− 0.034	− 0.015	0.038	− 0.063	− 0.085	− 0.068	1
HADS_A	0.055	0.053	0.143	0.100	0.060	0.094	0.083	0.102	0.156	0.115	0.684	1

IPF indoor physical functioning, OP outdoor physical functioning, ASB angina symptoms burden, TRE treatment experience, PL SAQ physical limitations, AF SAQ angina frequency, AS SAQ angina stability, TS SAQ treatment satisfaction, DP SAQ disease perception, EQ5D_VAS EQ5D visual analogue scale, HADS_D hospital anxiety and depression scale (HADS) depression subscale, HADS_A HADS anxiety subscale. All correlations are significant at either p < 0.01 or p < 0.05

ISSN: 1477-7525