Table 4 Factor analysis of WHOQOL-BREF TW data from 130 healthy referents

Factor1 (F1): Environment (10 items)

23

Satisfaction with living place

.696

.378

24

Satisfaction with access to health service

.688

.395

25

Satisfaction with transportation

.688

28

Food satisfaction

.666

.391

12

Enough money for needs

.641

.330

13

Daily information availability

.628

.537

11

Acceptance of appearance

.569

.313

.391

9

Physical environmental health

.558

.301

8

Life safety

.557

.404

.348

.367

14

Opportunity for leisure activities

.416

.382

.334

Factor2 (F2): Physical (6 items)

18

Satisfaction with work capacity

.764

21

Satisfaction with sex life

.743

19

Self-satisfaction

.692

.448

17

Satisfaction with ability to perform daily living

.365

.630

15

Ability to get around

.546

.583

10

Vitality

.339

.507

.389

Factor3 (F3): Psychological (4 items)

6

Life meaning

.715

5

Life enjoyment

.654

20

Satisfaction of personal relationships

.617

.374

7

Concentration

.423

.533

.304

Factor4 (F4): Social 1 (2 items)

26

Negative feeling

.848

27

The feeling of being respected by others

.352

Factor5 (F5): Social 2 (1 items)

22

Satisfaction with friend support

.743

Eigen values

4.640

3.612

2.838

1.718

1.584

Variance explained (%)

20.174

15.706

12.339

7.471

6.887

Total variance explained