Different Multimorbidity Measures Result in Varying Estimated Levels of Physical Quality of Life in Individuals with Multimorbidity: A Cross-Sectional Study in the General Population

Table 3

Main characteristics of the individuals with multimorbidity, depending on the multimorbidity measure.

Measure of multimorbidity	MM2+		MM3+
	21 conditions ()	6 conditions ()	21 conditions ()	6 conditions ()
Age: mean (SD)	55.0 (11.4)	59.0 (9.7)	56.3 (10.6)	59.5 (8.7)
Males: (%)	455 (41.7)	111 (46.8)	352 (42.1)	33 (50.0)
Socioeconomic status: (%)
Low	165 (15.1)	50 (22.4)	137 (16.4)	17 (28.3)
Middle-low	227 (20.8)	47 (21.1)	176 (21.1)	13 (21.7)
Middle-high	456 (41.8)	96 (43.0)	346 (41.4)	28 (46.7)
Elite group	200 (18.3)	30 (13.5)	143 (17.1)	2 (3.3)
Chronic conditions: mean number (SD)
As documented by the 21-c. list	4.2 (2.1)	6.1 (2.3)	4.8 (1.2)	7.8 (2.4)
As documented by the 6-c. list	0.9 (0.9)	2.3 (0.6)	1.1 (0.9)	3.2 (0.5)

SD: standard deviation; Socioeconomic classes were derived from a data-driven combination of the following variables: education level, perceived financial situation, house ownership, presence or absence of medical insurance, and possession of a retirement plan; 21-condition list; 6-condition list.
Missing data for each variable are not reported in this table because their number differed depending on the group considered. They ranged from 2 missing values (age, MM3+, 6 conditions) to 43 missing values (socioeconomic status, MM2+, 21 conditions).