Table 1.

Definition of Elder Orphan status categories

	Elder Orphan Status
Category	Not an Elder Orphan	At Risk	Elder Orphan
Living Arrangement	• Spouse and 1+ others • 1+ others, non-spouse	Spouse only	Lives alone
Social Isolation
Social Network Size		≤ 2 individuals	≤ 2 individuals
Physical Isolation
Days Left House		≤ 4 days per week	≤ 4 days per week
Caregiving
IADL or ADL Assistance Needed	No	Yes	Yes
Caregiving Provided by	--	• Spouse • Paid Caregiver • Caregiving Not Received	• Paid Caregiver • Caregiving Not Received

IADL= Independent Activities of Daily Living; ADL= Basic Activities of Daily Living

IADL and ADL tasks include cooking, grocery shopping, laundry, banking, dressing, washing and toileting

Spouse is inclusive of spouse and unmarried partner