Physical, cognitive, social and mental health in near-centenarians and centenarians living in New York City: findings from the Fordham Centenarian Study

Table 4 Regression models predicting depression and life satisfaction: Domain-Specific and combined models

	Depression				Life satisfaction
	B	β	p	R ²	B	β	p	R ²
Demographic model				.01				.05
Age	.12	.08	.43		−.01	−.03	.76
Gender	.37	.05	.66		−.09	−.03	.74
Residence (1 = priv, 2 = inst)	−.12	−.02	.88		−.38	−.15	.15
Widowed (1 = yes, 0 = no)	−.13	−.02	.88		.32	.12	.21
Education	−.05	−.03	.80		−.07	−.11	.29
US born (1 = yes, 0 = no)	.24	.03	.76		.17	.07	.51
Physical functioning model				.27*				.14*
Number of illness	.09	.07	.52		.04	.09	.44
Subjective health	−1.02	−.33	.00		.29	.28	.01
PADL	−.07	−.07	.64		.08	.24	.16
IADL	−.20	−.24	.09		−.01	−.02	.90
Cognitive functioning model				.01				.00
MMSE	.05	.04	.76		.00	−.01	.96
GlobDetScale^a	−.46	−.10	.46		.04	.03	.86
Social resources model				.15**				.08***
Number of living children	−.25	−.10	.35		.17	.20	.07
Relatives support score	−.20	−.20	.07		.03	.09	.43
Friends support score	−.21	−.26	.01		.04	.14	.20
Combined model				.28*				.20*
Subjective health	−.96	−.31	.002		.26	.25	.009
PADL	--	--	--		.07	.22	.019
IADL	−.24	−.27	.005		--	--	--
Number of living children	--	--	--		.22	.24	.009
Relatives support score	−.22	−.22	.023		--	--	--

Variable selection for combined models was based on including all variables from domain-specific models with p ≤ .20. Number of predictor variables were then further reduced using a stricter criterion of .10 or less. -- indicates that this variable has not been used in this regression model. Combined model for depression: n = 88. Combined model for life satisfaction: n = 102. ^aReverse coded for ease of interpretation. Higher values indicate better functioning (except Number of Illness and GDS)
Residence priv private, inst institution; PADL Personal Activities of Daily Living; IADL Instrumental Activities of Daily Living; MMSE Mini-Mental State Examination (shortened, max. 21); GlobDetScale Global Deterioration Scale; GDS Geriatric Depression Scale
*p < 0.01; **p < 0.05; ***p < 0.10

ISSN: 1471-2318