Correlational finding on Happiness and subject: What one eats

StudyAverina, M. et al. (2005): study RU Archangelsk 1999
TitleSocial and lifestyle determinants of depression, aniety, sleeping disorders and self-evaluated quality of life in Russia
SourceSoc Psychiatry Psychiatr Epidemol (2005) 40: 511-518
DOIdoi: 10.1007/s00127-005-0918-x
Public15+ aged general public, Arkhangelsk, Russia, 2000
SampleProbability area sample
Non-Response
Respondents N =3705

Correlate
Author's labelLow consumption (of nutrients)
Page in Source 516
Our classificationWhat one eats
Operationalization
Self report on single question:
How often do you eat:
a: fresh fruits or vegetables
b:  fish or fish products
c: meat or meat products?
1: rarely or never
2: once a week
3: 2 to 3 times a week, 
4: 4 to 5 times a week
5: almost daily
Observed distributionConsumption once a week or less: Men (fruits or vegetables 40.3%, fish or fish products 33.8%, meat or meat products 15.0%), Women (fruits or vegetables 36.0%, fish or fish products 49.0%, meat or meat products 24.4%).

Observed Relation with Happiness
Happiness
Measure
StatisticsElaboration/Remarks
C-BW-c-sq-l-11-cOR=1.6 p < .000
Unhappiness by LOW consumption of fruits and 
vegetables. CI(1.4-2.0)
C-BW-c-sq-l-11-cOR=1.4 p < .000
Unhappiness by LOW consumption of fish or fish 
products. CI(1.2-2.7)
C-BW-c-sq-l-11-cOR=1.3 p < .05
Unhappinessd by LOW consumption of meat or meat 
products. 
CI(1.02-1.5)
Control variables not reported


Appendix 1: Happiness measures used
CodeFull Text
C-BW-c-sq-l-11-cSelfreport on single question:

Here is ladder representing the 'ladder of life'. Let's suppose the top of the ladder represents the best possible life for you; and the bottom, the worst possible life for you. On which step of the ladder do you feel you personally stand at the present time?
10 best possible
9
8
7
6
5
4
3
2
1
0 worst possible life

This question was followed (not preceded) by items on life 5 years ago and 5 years from now.


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