Table 1.

Sample characteristics, according to baseline caregiver status combined with the top quartile of Perceived Stress Scale scores among 1069 Caregiver-SOF respondents

Variable	Non- caregiver: low stress (n=502)	Non- caregiver: high stress (n=192)	Caregiver: low stress (n=226)	Caregiver: high stress (n=149)	p-value
Mean age (std)	81.6 (3.7)	81.2 (3.9)	81.3 (3.5)	80.5 (3.7)	0.02
% Black	10.4	15.1	12.0	12.1	0.34
% married	25.7	28.1	51.3	61.7	<0.001
% college +	52.2	46.4	61.1	51.7	0.02
% daily social contact	35.1	33.3	40.9	20.8	<0.001
ADL limitations : mean (std)	0.4 (0.8)	0.8 (1.1)	0.3 (0.5)	0.5 (0.7)	<0.001
IADL limitations: mean (std)	0.8 (1.2)	1.2 (1.6)	0.3 (0.7)	0.5 (0.8)	<0.001
Medical conditions: mean (std)	1.7 (1.1)	2.0 (1.2)	1.6 (1.1)	2.0 (1.2)	<0.001
BMI: mean (std)	27.2 (5.1)	27.6 (5.7)	27.0 (4.7)	27.4 (5.7)	0.62
Perceived Stress Scale: mean (std)	12.1 (4.7)	24.0 (4.3)	12.5 (4.9)	25.0 (4.3)	<0.001
% caregiver to spouse			40.7	57.7	<0.01
% lives with care recipient			45.1	58.4	0.01
% care recipient has dementia			20.8	36.9	<0.001
% caregiving ≥ 5 years			43.4	43.6	0.96
% no scheduled time away from caregiving			19.5	27.5	0.07
# ADLs caregiver helps with			1.4 (1.6)	1.6 (1.9)	0.27
# IADLs caregiver helps with			3.6 (2.0)	4.3 (2.0)	0.003