Correlational finding on Happiness and subject: Quality of sleep

StudyHo et al. (1995): study HK 1992
TitleLife Satisfaction and Associated Factors in Older Hong Kong Chinese.
SourceThe American Geriatrics Society, 1995, Vol. 43, 252 - 255
Public70+aged, Hong Kong, 1991-1992
SampleProbability stratified sample
Non-Response
Respondents N =1557

Correlate
Author's labelDifficulty with sleeping
Page in Source 253
Our classificationQuality of sleep
Operationalization
Self report on sleeping pattern. Text is not reported.
1: difficulty with sleeping 
0: not difficulty with sleeping

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
O-SL?-?-sq-n-11-bOR=0.7 p < .05
CI95 [0.6-0.8]

OR controlled for:
-place of residence
-marital status
-presence of joint pain


Appendix 1: Happiness measures used
CodeFull Text
O-SL?-?-sq-n-11-bSelf report on single question:

.. Life satisfaction .. (full text not reported)
10 very satisfied
9
8
7
6
5
4
3
2
1
0 very dissatisfied


Appendix 2: Statistics used
SymbolExplanation
OROR: Odds ratio in binary logistic regression.

Happiness is a binary or dichotomous variable with Happy =1 and Unhappy=0.

OR < 1 indicates that the odds of being happy-to-being unhappy
decreases by a factor OR when

1) the corresponding metric correlate increases by one unit
2) the corresponding category of a categorical correlate is compared to the reference category.

OR > 1 indicates an increase by a factor OR for both the above cases.
Source:
Ruut Veenhoven, World Database of Happiness, Collection of Correlational Findings, Erasmus University Rotterdam.
https://worlddatabaseofhappiness.eur.nl