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Osteoporosis International
Published in: Osteoporosis International 8/2007

01-08-2007 | Original Article

Urban-rural differences in distal forearm fractures: Cohort Norway

Authors: A. J. Søgaard, T. K. Gustad, E. Bjertness, G. S. Tell, B. Schei, N. Emaus, H. E. Meyer, On behalf of the Norwegian Epidemiological Osteoporosis Studies (NOREPOS) Research Group

Published in: Osteoporosis International | Issue 8/2007

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Abstract

Summary

The prevalence of forearm fractures increased with increasing degree of urbanization for both genders in the population-based study “Cohort Norway” with more than 180,000 participants. The differences were not explained by available risk factors. Prospective studies with information on bone mineral density and falls are warranted.

Introduction

The purpose was to investigate urban-rural gradients in self-reported forearm fractures and assess the contribution of possible explanatory factors.

Methods

“Cohort Norway” comprises ten population-based surveys inviting 309,742 individuals age 20 years and older. All 181,891 participants underwent a standardized examination and answered 50 common questions, including one concerning former forearm fractures. Based on the home-addresses, participants were divided into three population density groups: cities, densely populated areas and sparsely populated areas. Analyses were limited to 149,725 participants 30 years or over with valid information on exposure and outcome. Of these, 21,627 reported having suffered a forearm fracture.

Results

The prevalence of forearm fractures increased with increasing degree of urbanization for both genders. After adjustment for age and explanatory factors, the odds ratio of having sustained a forearm fracture in men living in densely populated areas and in cities were 1.12 (95% CI, 1.04–1.21) and 1.38 (95% CI, 1.30–1.46), respectively, compared to rural areas. Similar odds ratios were observed among women.

Conclusions

Prospective studies are needed to verify whether lower bone mineral density, different lifestyle and/or more falls may explain the higher proportion of self-reported forearm fractures found in urban compared to rural areas.
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Metadata
Title
Urban-rural differences in distal forearm fractures: Cohort Norway
Authors
A. J. Søgaard
T. K. Gustad
E. Bjertness
G. S. Tell
B. Schei
N. Emaus
H. E. Meyer
On behalf of the Norwegian Epidemiological Osteoporosis Studies (NOREPOS) Research Group
Publication date
01-08-2007
Publisher
Springer-Verlag
Published in
Osteoporosis International / Issue 8/2007
Print ISSN: 0937-941X
Electronic ISSN: 1433-2965
DOI
https://doi.org/10.1007/s00198-007-0353-9

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