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Table 2 Factor analysis of the IQualiV-OG-21 (n = 149)

From: Development of a new multimedia instrument to measure cancer-specific quality of life in Portuguese-speaking patients with varying literacy skills

Item Descriptorsa Factors
Emotion Physical Existen Relation Function Financial
6 Insomnia 0.482 0.064 0.129 0.280 0.126 0.281
17 Depressed 0.652 0.133 0.247 0.252 0.069 0.239
18 Anxious 0.736 −0.047 0.147 0.138 −0.064 0.251
19 Easily irritated 0.702 0.228 0.172 0.257 −0.095 0.023
21 Fear of worsening health 0.588 0.012 0.335 −0.207 0.160 0.145
22 Worry about the family’s future 0.572 0.032 0.055 −0.059 0.191 0.460
1 Pain 0.588 0.189 −0.165 0.358 0.348 −0.050
2 Weak or without energy 0.399 0.582 −0.045 0.197 0.219 −0.204
4 Lack of appetite 0.076 0.742 0.084 −0.089 0.118 0.347
5 Limited ability to taste foods −0.061 0.755 0.095 0.153 0.161 0.081
7 Nauseated 0.142 0.777 0.117 0.062 0.009 0.121
24 Hopeless 0.203 0.111 0.784 0.073 0.169 0.008
25 Lost faith in God 0.144 0.068 0.786 0.215 −0.004 0.153
29 Life did not make sense 0.109 0.088 0.759 0.077 0.051 −0.009
15 Relationship problems 0.225 0.112 0.132 0.762 0.015 0.177
16 People distanced themselves 0.151 0.059 0.205 0.795 0.107 0.064
9 Needing help to get dressed, shower or eat 0.067 −0.001 0.020 −0.034 0.821 −0.017
10 Unable to work 0.107 0.260 0.120 0.313 0.689 0.318
11 Needing to lie down or sit to rest 0.058 0.407 0.243 0.043 0.648 0.021
12 Worried about finances 0.263 0.180 0.084 0.051 0.113 0.773
13 Not enough money to meet needs 0.259 0.180 0.017 0.298 −0.049 0.744
  1. aThe brief item descriptors approximate the questions asked in each item
  2. Factor loadings are italicized when grouped in a same domain
  3. Emotion. emotional, Existen. existential, Relation. interpersonal relationships, Function. functional