Læknablaðið - 15.04.2010, Side 32

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Smoking, obesity and education of lcelandic women by rural-urban residence
Objective: To assess the prevalence of obesity and the
association with smoking and education among young
lcelandic women residing within and outside the capital
area.
Materials and methods: A self-administered questionnaire
was sent to 28.000 lcelandic women, 18-45 years-old,
in the period November 2004 to June 2005. The sample
was randomly selected from The National Registry,
response rate being 54.6%. The study was part of a large
Nordic population-based cross-sectional study. Logistic
regression was used for assessing the odds ratio of
obesity (BMI&30) in a multivariate analysis according to
smoking and education, taking also into account age and
alcohol consumption. The chi-square test was used for
comparing percentages.
Results: Thirteen percent of women residing in the capital
area were obese compared with 21 % outside the capital.
In the multivariate analysis obesity was increased among
women living outside the capital (OR = 1.66; 95% Cl 1,50-
1,83), among smokers (OR=1,13; 95% Cl 1.01-1.28), and
among women who did not have university education
(OR=1.53; 95%CI 1.36-1.71). Daily smokers within the
capital area were more likely to be obese (OR=1.27; 95%CI
1.07-1.49) but not smokers outside the capital (OR=1.0)..
Conclusions: Residence outside the capital area, daily
smoking and non-university education are associated
with an increased risk of obesity among young lcelandic
women. The relationship beween these factors is complex
and differs between women residing within and outside the
capital area.
Steingrímsdottir L, Olafsdottir EJ, Jonsdottir LS, Sigurdsson R, Tryggvadottir L.
Smoking, obesity and education of lcelandic women by rural-urban residence. Icel Med J 2010; 96:259-64
Key words: obesity, smoking, residence, education, women's health.
Correspondence: Laufey Steingrímsdóttir, laufey@hi.is
Barst: 11. febrúar 2010, - samþykkt til birtingar: 24. febrúar 2010
Hagsmunatengsl: Engin
264 LÆKNAblaðið 2010/96