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Canadian Journal of Public Health

, Volume 100, Issue 3, pp 231–236 | Cite as

Increasing Incidence and Prevalence of Diabetes among the Status Aboriginal Population in Urban and Rural Alberta, 1995–2006

  • Jeffrey A. JohnsonEmail author
  • Stephanie U. Vermeulen
  • Ellen L. Toth
  • Brenda R. Hemmelgarn
  • Kelli Ralph-Campbell
  • Greg Hugel
  • Malcolm King
  • Lynden Crowshoe
Quantitative Research
  • 1 Downloads

Abstract

Objective

To compare changes in diagnosed diabetes prevalence and incidence among Status Aboriginal men and women living in urban and rural areas of Alberta.

Methods

We compared trends in diabetes prevalence and incidence from 1995 to 2006 based on diagnostic codes from Alberta Health and Wellness (AHW) administrative records for adults aged 20 years and older. The AHW Registry file was used to determine registered Aboriginal status, as well as rural and urban residence (based on postal code). Multivariable logistic regression was used to compare diabetes rates over time, by sex and location of residence.

Results

Age- and sex-adjusted diabetes prevalence increased 35% in rural Status Aboriginals, from 10.9 (10.4–11.5) per 100 in 1995 to 14.7 (14.2–15.2) per 100 in 2006. Rates in urban Status Aboriginals increased 22% in the same time period from 9.4 (8.5–10.3) per 100 in 1995 to 11.5 (10.9–12.1) per 100 in 2006. The increases in prevalence were greater (p<0.001) for men (43% and 40%) compared to women (30% and 12%) in rural and urban settings, respectively. Diabetes incidence increased 45% in Status Aboriginal men, from 7.4 (4.9–10.6) per 1000 in 1995 to 10.7 (8.3–13.5) per 1000 in 2006 in urban locations, compared to a 35% increase among Status Aboriginal men living in rural locations (p=0.628). Among Status Aboriginal women, incidence increased by 25% for those living in urban locations, but did not change for those in rural locations (p=0.109).

Conclusions

Prevalence and incidence of diagnosed diabetes were highest in Status Aboriginal women, but these rates have increased faster in men over the past decade, regardless of their location of residence.

Key words

Diabetes epidemiology rural health Status Aboriginal 

Résumé

Objectif

Comparer les changements de taux de prévalence et d’incidence du diabète diagnostiqué chez les hommes et les femmes qui appartiennent à la population autochtone et qui résident dans les régions urbaines et rurales de l’Alberta.

Méthodes

Nous avons comparé les tendances des taux de prévalence et d’incidence du diabète de 1995 à 2006, selon les codes de diagnostic des dossiers administratifs conservés par Alberta Health and Wellness (AHW) pour les adultes âgés de 20 ans ou plus. Les fichiers du registre d’AHW ont été utilisés pour déterminer le statut de personne inscrite comme Autochtone, en plus de sa résidence rurale ou urbaine (selon le code postal). Une analyse de régression logistique multidimensionnelle a été utilisée pour comparer les taux de diabète au fil des ans, selon le sexe et le lieu de résidence.

Résultats

Le taux de prévalence du diabète, rajusté pour tenir compte de l’âge et du sexe, a augmenté de 35 % chez les Autochtones qui résident en milieu rural, de 10,9 (10,4 à 11,5) par 100 habitants en 1995 à 14,7 (14,2 à 15,2) par 100 habitants en 2006. Le taux de prévalence du diabète chez les Autochtones qui résident en milieu urbain a augmenté de 22 % au cours de la même période, de 9,4 (8,5 à 10,3) par 100 habitants en 1995 à 11,5 (10,9 à 12,1) par 100 habitants en 2006. Les augmentations des taux de prévalence (p<0,001) chez les hommes (43 % et 40 %) ont été supérieures à celles des femmes (30 % et 12 %) dans les milieux ruraux et urbains, respectivement. Le taux d’incidence du diabète a augmenté de 45 % chez les hommes autochtones, de 7,4 (4,9 à 10,6) par 1000 habitants en 1995 à 10,7 (8,3 à 13,5) par 1000 habitants en 2006 dans les régions urbaines, comparativement à une augmentation de 35 % chez les hommes autochtones des régions rurales (p=0,628). Chez les femmes autochtones, le taux d’incidence a augmenté de 25 % dans les régions urbaines, mais il est demeuré le même dans les régions rurales (p=0,109).

Conclusions

Les taux de prévalence et d’incidence du diabète diagnostiqué étaient plus élevés chez les femmes autochtones, mais ces taux ont augmenté plus rapidement chez les hommes autochtones au cours de la dernière décennie, peu importe le lieu de résidence.

Mots clés

diabète épidémiologie santé en milieu rural personne appartenant à la population autochtone 

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Copyright information

© The Canadian Public Health Association 2009

Authors and Affiliations

  • Jeffrey A. Johnson
    • 1
    • 2
    Email author
  • Stephanie U. Vermeulen
    • 2
  • Ellen L. Toth
    • 3
  • Brenda R. Hemmelgarn
    • 4
  • Kelli Ralph-Campbell
    • 3
  • Greg Hugel
    • 2
  • Malcolm King
    • 3
  • Lynden Crowshoe
    • 5
  1. 1.Department of Public Health SciencesUniversity of AlbertaEdmontonCanada
  2. 2.Institute of Health EconomicsEdmontonCanada
  3. 3.Department of MedicineUniversity of AlbertaEdmontonCanada
  4. 4.Departments of Medicine and Community Health SciencesUniversity of CalgaryCalgaryCanada
  5. 5.Department of Family MedicineUniversity of CalgaryCalgaryCanada

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