Table 4 Multinomial logistic regression analysis for class memberships of social relationships

Class 2: Socially Isolated (ref = Class 1: Active)

Crude Odds

95% CI

Adjusted Odds

95% CI

Age (Continuous)

1.08***

1.05–1.11

0.98

0.95–1.01

Sex = Male (ref. female)

1.69*

1.08–2.65

1.72*

1.07–2.76

Subjective economic status = Poor (ref. Better-off)

1.38

0.83 2.29

1.11

0.65–1.88

 Heart disease

1.25

0.57–2.71

1.05

0.47–2.37

 Diabetes

0.90

0.48–1.66

0.82

0.44–1.55

 Musculoskeletal disorder

1.00

0.48–2.06

0.99

0.46–2.15

IADL = Dependent (ref. Independent)

1.91*

1.14–3.22

2.19**

1.21–3.97

Depressive symptoms = Having (ref. Not having)

1.99**

1.28–3.11

1.80*

1.13–2.86

Living status = Living alone (ref = Living with someone)

2.59**

1.27–5.31

3.07**

1.43–6.61

Class 3: Less motivated (ref = Class 1: Active)

Crude Odds

95% CI

Adjusted Odds

95% CI

Age (Continuous)

1.00

0.97–1.03

1.03

0.99–1.06

Sex = Male (ref. female)

0.93

0.59–1.47

0.86

0.52–1.42

Subjective economic status = Poor (ref. Better-off)

1.51

0.89–2.54

1.32

0.75–2.35

 Heart disease

1.28

0.56–2.91

0.88

0.36–2.13

 Diabetes

1.38

0.77–2.46

1.32

0.71–2.47

 Musculoskeletal disorder

1.04

0.48–2.24

0.83

0.36–1.91

IADL = Dependent (ref. Independent)

8.00***

4.90–13.07

6.29***

3.47–11.39

Depressive symptoms = Having (ref. Not having)

2.10**

1.30–3.41

1.69*

1.00–2.85

Living status = Living alone (ref = Living with someone)

0.92

0.28–3.07

1.41

0.39–5.09