Dimensions and correlates of quality of life according to frailty status: a cross-sectional study on community-dwelling older adults referred to an outpatient geriatric service in Italy

Table 4 Multiple regression coefficients for OPQOL score among robust and frail participants.

Variables	Unstandardized Coefficient (95% CI)	Collinearity Tolerance
Robust participants ( n = 72)
BADL score	1.90 (-0.90 to 4.69)	0.48
IADL score	0.64 (-1.13 to 2.40)	0.31
MMSE score	0.34 (-0.52 to 1.19)	0.45
Body Mass Index (Kg/m²)	0.89 (0.17 - 1.60)	0.95
Frail participants ( n = 78)
Model without GDS score ( n = 78)
Age (years)	0.49 (0.01 - 0.99)	0.97
Depression	-0.84 (-6.76 to 5.09)	0.97
Model with GDS score ( n = 65)
Age (years)	0.55 (0.02 - 1.08)	0.96
GDS score	-0.50 (-0.91 to -0.09)	0.96

Notes: Bold values are significant at p < 0.05; Models are adjusted for age; "Robust participants" model adjusted R squared = 0.22; "Frail participants" model (with GDS score) adjusted R squared = 0.15.
OPQOL = Older People's Quality of Life questionnaire; BADLs = Basic Activities of Daily Living; IADLs = Instrumental Activities of Daily Living; MMSE = Mini Mental State Examination; GDS = Geriatric Depression Scale.

ISSN: 1477-7525