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Table 7 Rotated component matrix

From: DEMQOL and DEMQOL-Proxy: a Rasch analysis

Item

In the past week

Component

1

2

dem1

Felt cheerful

−.123

−.755

dem2

Felt worried or anxious

.452

.439

dem3

Felt enjoying life

−.099

−.775

dem4

Felt frustrated

.452

.486

dem5

Felt confident

−.204

−.665

dem6

Felt full of energy

−.021

−.750

dem7

Felt sad

.389

.587

dem8

Felt lonely

.374

.476

dem9

Felt distressed

.466

.533

dem10

Felt lively

.012

−.757

dem11

Felt irritable

.440

.420

dem12

Felt fed-up

.357

.651

dem13

Felt there were things you wanted to do but couldn’t

.421

.467

dem14

Worried about forgetting what happened recently

.651

.190

dem15

Worried about forgetting who people are

.648

−.004

dem16

Worried about forgetting what day it is

.572

.122

dem17

Worried about thoughts being muddled

.724

.140

dem18

Worried about difficulty making decisions

.716

.192

dem19

Worried about poor concentration

.723

.163

dem20

Worried about not enough company

.522

.310

dem21

Worried about how you get on with people close to you

.714

.175

dem22

Worried about getting the affection you want

.663

.164

dem23

Worried about people not listening to you

.681

.191

dem24

Worried about making yourself understood

.733

.122

dem25

Worried about getting help when needed

.658

.265

dem26

Worried about getting to the toilet in time

.462

.183

dem27

Worried about how you feel in yourself

.616

.427

dem28

Worried about your overall health

.617

.365

  1. Primary loadings with a relatively negligible secondary loading are in bold; the primary loading is at least 3.73 (cotangent 15°) times as large as the secondary loading, therefore can be seen as factor-pure [36]