Development of a disease specific questionnaire to measure health related quality of life in patients with chronic liver disease.
table 1 Impact scores and factor loadings of the items from the item reduction step |
|
CLDQ items
|
Proportion
with problem
|
Importance
|
Impact
|
Factor
loadings
|
Factor 1 |
|
|
|
|
Decreased strength |
0.69 |
3.95 |
2.73 |
0.69 |
Fatigue |
0.80 |
3.88 |
3.10 |
0.82 |
Decreased level of energy |
0.81 |
4.04 |
3.27 |
0.79 |
Lack of energy |
0.59 |
4.24 |
2.50 |
0.75 |
Feeling weak |
0.63 |
3.88 |
2.44 |
0.83 |
Feeling worn out |
0.70 |
3.89 |
2.72 |
0.79 |
Feeling sleepy during the day |
0.80 |
3.55 |
2.84 |
0.53 |
Tired in the morning when you wake up |
0.59 |
4.03 |
2.38 |
0.57 |
Tired in the afternoon |
0.77 |
3.37 |
2.59 |
0.58 |
Drowsiness |
0.63 |
3.55 |
2.24 |
0.61 |
Problem carrying heavy objects |
0.55 |
3.49 |
1.92 |
0.55 |
Anxiety |
0.69 |
3.73 |
2.57 |
0.54 |
Factor 2 |
Feeling depressed |
0.56 |
4.00 |
2.24 |
0.51 |
Irritability |
0.55 |
4.03 |
2.22 |
0.48 |
Mood swings |
0.52 |
4.09 |
2.13 |
0.51 |
Difficulty sleeping at night |
0.61 |
3.77 |
2.30 |
0.71 |
Unable to fall asleep at night |
0.58 |
3.73 |
2.16 |
0.69 |
The need to get up at night to urinate |
0.63 |
2.98 |
1.88 |
0.40 |
Not feeling rested in the morning |
0.67 |
3.84 |
2.57 |
0.61 |
Factor 3 |
Worried about the impact your disease has on your family |
0.64 |
3.90 |
2.50 |
0.74 |
Worried your symptoms will develop into a major problem |
0.73 |
4.02 |
2.93 |
0.79 |
Worried never feeling any better |
0.52 |
4.36 |
2.27 |
0.60 |
Worried condition getting worse |
0.83 |
4.08 |
3.39 |
0.81 |
Factor 4 |
|
|
|
Feeling bloated |
0.66 |
3.48 |
2.30 |
0.80 |
Abdominal discomfort |
0.55 |
3.43 |
1.89 |
0.66 |
Abdominal bloating |
0.58 |
3.81 |
2.21 |
0.83 |
Muscle cramps at night |
0.56 |
3.58 |
2.00 |
0.47 |
Factor 5 |
Trouble lifting heavy objects |
0.53 |
3.59 |
1.90 |
0.51 |
Change in eating habits |
0.56 |
3.44 |
1.93 |
0.76 |
Not able to eat as much as before |
0.56 |
2.81 |
1.57 |
0.58 |
Napping during the day |
0.61 |
3.23 |
1.97 |
0.56 |
Factor 6 |
Shortness of breath |
0.53 |
3.88 |
2.06 |
0.49 |
Dry mouth |
0.61 |
3.33 |
2.03 |
0.52 |
Worried about the availability of a liver if you need a transplant |
0.55 |
4.60 |
2.53 |
0.64 |
Itching |
0.53 |
3.24 |
1.82 |
0.40 |
|
Proportion of variance explained: factor 1, 0.224; factor 2, 0.122; factor 3, 0.110; factor 4, 0.099; factor 5, 0.098; factor 6, 0.056. |
|
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