The Minnesota living with heart failure questionnaire: comparison of different factor structures

Table 4 Correlation between the MLHFQ social subscales and SF-12 components, and known-groups validity of the MLHFQ social subscales

	MLHFQ
	Social subscale proposed by
	Lambrinou	Garin	Munyombwe
	ρ coefficient	ρ coefficient	ρ coefficient
SF-12
Physical Component Summary	−0.24	−0.31	−0.38
Mental Component Summary	−0.31	−0.37	−0.41
	Mean (SD)	Mean (SD)	Mean (SD)
Attended emergency department during the previous 6 months
Yes (n = 239)	7.57 (5.50)	9.58 (6.38)	13.09 (8.54)
No (n = 724)	4.98 (5.09)	6.23 (5.92)	7.84 (7.18)
P value	<0.0001	<0.0001	<0.0001
Effect size	0.49	0.54	0.67
Readmission during the previous 6 months
Yes (n = 302)	7.29 (5.43)	9.30 (6.40)	13.09 (8.36)
No (n = 674)	4.94 (5.10)	6.11 (5.88)	7.42 (6.97)
P value	<0.0001	<0.0001	<0.0001
Effect size	0.44	0.51	0.72

ρ: Spearman correlation coefficient, SD Standard deviation
Data are expressed as the Spearman correlation coefficient when studying the correlation between the MLHFQ social subscales and SF-12 components, and as the mean (SD) when comparing the MLHFQ social subscales as a function of emergency department attendance, or readmission during the previous 6 months
The scores for the social dimension range from 0 to 15 for that proposed by Lambrinou, from 0 to 20 for that proposed by Garin, and from 0 to 30 for that proposed by Munyombwe, with higher scores indicating worse health status. The scores for the SF-12 dimensions range from 0 to 100, with higher scores indicating better health status

ISSN: 1477-7525