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Table 4 Quality of Life Index Scores Reported by HD Sample in This Study and by HD Patients Studied by Ferrans/Powers*

From: Nocturnal sleep, daytime sleepiness, and quality of life in stable patients on hemodialysis

Scale

Study Sample (n = 46)

Ferrans &Powers Study (n = 349)*

 

Mean (SD)

Range

Internal Consistency**

Mean (SD)

Range

Internal consistency

Health & Functioning Subscale ***

21.1 (4.7)

10.29–29.54

0.80

18.64 (5.7)

2.8–30.0

0.87

Social & Economic Subscale

22.0 (4.8)

10.71–30.0

0.94

21.29 (5.4)

3.2–30.0

0.82

Psychological & Spiritual Subscale ***

24.5 (4.4)

15.07–30.0

0.81

21.60 (6.7)

0.9–30.0

0.90

Family Subscale

26.8 (3.5)

18.0–30.0

0.91

25.25 (5.1)

0.0–30.0

0.77

Total QOLI Score ***

22.8 (4.0)

14.53–29.67

0.91

20.7 (4.8)

7.3–29.8

0.90

  1. * [38], ** Cronbach's alphas, *** p = 0.005, 0.007, 0.005 respectively: t-test