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Table 3 EDQLS Total Score and Item Correlations with Validation Instruments for 130 Multi-site Participants at Baseline

From: Development and multi-site validation of a new condition-specific quality of life measure for eating disorders

Convergent Validity EDQLS Item Criterion Item – SF12 Spearman's rho* p
3 I have an open honest relationship with someone outside my family 12 Interference with social activities .22 .01
10 I feel connected to others 12 Interference with social activities .40 .000
16 I have fights with my family members about food and eating * 12 Interference with social activities .33 .000
19 I turn down opportunities to go out with friends * 12 Interference with social activities .62 .000
22 People don't understand me * 12 Interference with social activities .37 .000
28 I have to be in a relationship to feel good about myself * 12 Interference with social activities .01 NS
6 I hardly ever worry 9 How much ..time...felt calm/peaceful -.55 .000
21 I feel hopeful about the future 11 How much ..time....felt downhearted .51 .000
9 I have lots of energy 10 How much.. time ...did you have lots of energy -.75 .000
EDQLS Item Criterion Item – QoLI   
11 I get satisfaction from my main activity 10 Satisfaction with work .55 .000
28 I have to be in a relationship to feel good about myself * 19 Importance of love -.28 .001
28 I have to be in a relationship to feel good about myself * 20 Satisfaction with love .06 NS
3 I have an open honest relationship with someone outside my family 19 Importance of love .07 NS
3 I have an open honest relationship with someone outside my family 20 Satisfaction with love .38 .000
19 I turn down opportunities to go out with friends * 22 Satisfaction with friends .30 .001
16 I have fights with my family members about food and eating * 26 Satisfaction with relatives .17 NS
21 I feel hopeful about the future 6 Satisfaction with goals and values .52 .000
27 I think about what I would like to do in my life 6 Satisfaction with goals and values .38 .000
1 I have fun with others 12 Satisfaction with play .33 .000
14 I enjoy relaxing in my free time 12 Satisfaction with play .28 .001
24 I enjoy participating in different activities, not just exercise 12 Satisfaction with play .27 .002
7 I show my true self to others 4 Satisfaction with self-esteem .39 .000
26 I am able to see good qualities in myself 4 Satisfaction with self-esteem .60 .000
30 I put myself down a lot * 4 Satisfaction with self-esteem .68 .000
5 My health is more important than my physical appearance 1 Importance of health .41 .000
31 I feel self-conscious about my body around others * 4 Satisfaction with self-esteem .60 .000
EDQLS Item Criterion Item – 16D   
4 I have trouble concentrating 14 Mental function (thinking clearly and logically) -.52 .000
20 I can focus on things other than food 14 Mental function (thinking clearly and logically) -.39 .000
29 Thoughts about food and eating dominate my life * 14 Mental function (thinking clearly and logically) -.41 .000
39 The eating disorder has taken over my life * 11 School and hobbies -.59 .000
19 I turn down opportunities to go out with friends * 13 Making friends or being with them -.45 .000
13 I see positive things in my appearance 10 Weight, height and what I look like -.61 .000
9 I have lots of energy 1 Feeling healthy and energetic -.67 .000
25 I'm constantly trying to fix my body * 10 Weight, height and what I look like -.75 .000
38 I'm obsessed with my weight or my body shape * 10 Weight, height and what I look like -.75 .000
24 I enjoy participating in different activities, not just exercise 11 School and hobbies -.35 .000
31 I feel self-conscious about my body around others * 10 Weight, height and what I look like -.68 .000
21 I feel hopeful about the future 16 Feeling sad, melancholic or depressed -.49 .000
6 I hardly ever worry 4 Feeling anxious, stressed or nervous -.55 .000
32 My sleep is restful 6 Problems with sleeping -.51 .000
  Criterion Item or Scale Score Pearson's r p
EDQLS Total Score SF-12 Health status item -.48 .000
  Please rate how well you feel today. .56 .000
  Please rate your overall quality of life in the last week (EDQLS global QoL item) .73 .000
  SF 12 Mental Subscale .71 .000
  SF 12 Physical Subscale .37 .000
  16D Weighted Total Score .78 .000
  QoLI Weighted Total Score .61 .000
Divergent Validity EDQLS Total Score    
  16D 2 Vision -.08 NS
  16D 3 Breathing -.32 .000
  16D 5 Hearing -.21 NS
  16D 9 Speech -.28 .001
  16D 12 Walking -.04 NS
  1. * refers to items that are reverse scored for analysis.