Table 1 Participant information on sociodemographic and health-related characteristics

age in years (mean)

75–89 (79.8)

80–100 (86.8)

gender

female

17

5

male

9

3

predominantly male

1

-

educational level

lower secondary education

2

3

intermediate secondary education

11

-

high school diploma/college degree

13

4

others

1

-

missing

-

1

type of household

living alone

14

3

partnership

10

2

family home/shared accommodation

2

-

assisted living

1

-

nursing home

-

3

marital status

single

2

1

married

9

2

divorced/separated

7

-

widowed

8

5

widowed & new relationship

1

-

financial worries

never

10

3

rarely

12

1

occasionally

5

2

frequently

-

1

always

-

1

state of health

excellent

1

-

very good

5

-

good

16

2

less good

5

3

poor

-

3

mental problems (last week)

5 (1 missing)

4 (2 missing)

physical problems (last week)

10 (1 missing)

6 (1 missing)

impaired socializing due to mental or physical problems (last week)

never

14

1

rarely

4

-

sometimes

5

2

quite often

3

1

mostly

1

-

always

-

3