Official PSQI scoring for Component 3 does not clearly define boundaries for scoring:
- > 7 hours: score 0
- 6-7 hours: score 1
- 5-6 hours: score 2
- < 5 hours: score 3
I have found several scoring scripts and they are quite inconsistent in this regard. Unfortunately affected numbers (7, 6, and 5) are the majority in my data and the choice of scoring will have an impact on overall results for this component (and might affect models for the global score as well), so I would like to make this decision before the analysis to avoid possible bias. Is there some kind of guideline or common practice for this calculation?
Hi,
Scores between 5 and 7 show the normal distribution in the population too.I think we have to analyze according to the observed values.
Component 3 reflects answers for question 3 of the PSQI questionnaire : What time have you usually gotten up in the morning?
here is the tip : avoid to let the patients answer with a precise "time of awakeness" . they should give you a time frame of their usual or frequent time of awakeness ;)
i have used this questionnaire in a research performed in our department once :
Article Comparison of Sleep Quality before and after Chemotherapy in...
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