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RE: Problemy związane z badaniem jakości życia pacjentów onkologicznych

Autor: gosiastar   Data: 2010-11-15, 22:23:00               

Link do kwestionariusza SF-36:

https://docs.google.com/fileview?id=0ByI6SPD57hCeMTM4MDExZGUtNzc2ZC00NWMxLTk1MDUtMWNmMzQ2ZjljNTAy&hl=en&authkey=CIKV2qoC


Klucz:

STEP 1: RECODING ITEMS

ITEM NUMBERS
Change original response category (Precoded
response choices as printed in the questionnaire.)
----------- > To recoded value of:

1,2,20,22,34,36
1 ----------- > 100
2 ----------- > 75
3 ----------- > 50
4 ----------- > 25
5 ----------- > 0

3,4,5,6,7,8,9,10,11,12
1 ----------- > 0
2 ----------- > 50
3 ----------- > 100

13,14,15,16,17,18,19
1 ----------- > 0
2 ----------- > 100

21,23,26,27,30
1 ----------- > 100
2 ----------- > 80
3 ----------- > 60
4 ----------- > 40
5 ----------- > 20
6 ----------- > 0

24,25,28,29,31
1 ----------- > 0
2 ----------- > 20
3 ----------- > 40
4 ----------- > 60
5 ----------- > 80
6 ----------- > 100

32,33,35
1 ----------- > 0
2 ----------- > 25
3 ----------- > 50
4 ----------- > 75
5 ----------- > 100


STEP 2: AVERAGING ITEMS TO FORM SCALES

A. Scale
B. Number Of Items
C. After Recoding Per Table 1, Average The Following Items:

a. Physical functioning
b. 10
c. 3 4 5 6 7 8 9 10 11 12

a. Role limitations due to physical health
b. 4
c. 13 14 15 16

a. Role limitations due to emotional problems
b. 3
c. 17 18 19

a. Energy/fatigue
b. 4
c. 23 27 29 31

a. Emotional well-being
b. 5
c. 24 25 26 28 30

a. Social functioning
b. 2
c. 20 32

a. Pain
b. 2
c. 21 22

a. General health
b. 5
c. 1 33 34 35 36




RELIABILITY, CENTRAL TENDENCY AND VARIABILITY OF SCALES IN THE MEDICAL OUTCOMES STUDY

Scale Items Alpha Mean SD

Physical Functioning 10 0.93 70.61 27.42
Role Functioning/physical 4 0.84 52.97 40.78
Role Functioning/emotional 3 0.83 65.78 40.71
Energy/fatigue 4 0.86 52.15 22.39
Emotional well-being 5 0.90 70.38 21.97
Social functioning 2 0.85 78.77 25.43
Pain 2 0.78 70.77 25.46
General Health 5 0.78 56.99 21.11
Health Change 1 - - 59.14 23.12

Note. Data is from baseline of the Medical Outcomes Study (N = 2471), except for Health change, which was obtained one-year later.

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