Table 6 Influence of variables on Mental Component Summary (MCS) score

Education status

Any Educ.

71.80 ± 17.09

-3.89^b

< 0.001*

No Educ.

62.66 ± 17.47

Marital status

Married

70.75 ± 17.26

2.59^b

0.01*

Single

64.17 ± 18.14

Occupational class

White collar

72.42 ± 16.67

4.47^a

0.01*

Self empl.

65.94 ± 18.37

Blue collar

63.00 ± 18.46

BMI

Obese

62.82 ± 16.81

2.90^b

0.004*

Not obese

70.71 ± 17.59

Symptom count

No symptom

64.78 ± 15.39

-4.29^b

< 0.001*

≥ 1 symptom

73.86 ± 18.73

Stroke

Yes

52.68 ± 16.42

-2.99^b

0.003*

No

69.49 ± 17.43

Visual impairment

Yes

56.93 ± 14.99

-4.80^b

< 0.001*

No

70.63 ± 17.34