Table 3 Principal component analysis results

FT4

No choice about money spent

0.896

-

0.740

FT3

Worry about future financial problems

0.828

-

0.701

FT9

Concerned about keeping income

0.787

-

0.652

FT10

Reduced financial satisfaction due to treatment/disease

0.755

-

0.654

FT5

Frustrated about inability to contribute/work as usual

0.698

-

0.540

FT2

Out-of-pocket expenses are more than thought

0.672

-

0.603

FT8

Feel financially stressed

0.633

-

0.380

FT7

Able to meet monthly expenses

-

0.818

0.728

FT6

Satisfied with current finances

-

0.792

0.690

FT11

In control of finances

-

0.756

0.540

FT1

Have enough money to cover treatment

-

0.697

0.436

Component characteristic

Promax rotation

Eigenvalue

Proportion variance

Component 1

4.102

37.3%

Component 2

2.560

23.3%

PCA appropriateness check

Kaiser-Meyer-Olkin overall measure

0.883

Bartlett’s test for sphericity

χ2 = 1542.459 (df = 55), p < 0.001