Article Text

other Versions

PDF
Does a population-based multifactorial lifestyle intervention increase social inequality in physical activity? The Inter99 study
  1. M Aadahl1,
  2. L von Huth Smith1,
  3. U Toft1,
  4. C Pisinger1,
  5. T Jørgensen1,2
  1. 1Research Centre for Prevention and Health, Building 84/85, Glostrup University Hospital, DK-2600 Glostrup, Denmark
  2. 2Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
  1. Correspondence to Mette Aadahl, Research Centre for Prevention and Health, Building 84/85, Glostrup University Hospital, DK-2600 Glostrup, Denmark; metaad01{at}glo.regionh.dk

Abstract

Aim To examine the effect of a multifactorial lifestyle intervention on 5-year change in physical activity (PA) and to explore whether length of education had an impact on the effect of the intervention.

Methods Two random samples (high intervention group A, n=11 708; low intervention group B, n=1308) were invited for a health examination, assessment of absolute risk of ischemic heart disease and individual lifestyle counselling. The participation rate was 52.5%. High-risk individuals in group A were also offered group-based counselling on diet and PA and/or smoking cessation. High-risk individuals in group B were referred to usual care. All high-risk individuals were reinvited for examination and counselling after 1 and 3 years, and all participants were reexamined after 5 years. The control group (group C, n=5264, response rate 61.1%) answered a mailed questionnaire. Change in self-reported PA from baseline to 5-year follow-up was the main outcome. Level of education was classified as no vocational training, ≤4 years and >4 years. Data were analysed using longitudinal linear regression models with random intercepts.

Results In men, the high-intensity intervention had a beneficial effect on PA level after 5 years. The age- or time-related decrease in PA was approximately 30 min/week less compared to men in the control group (p<0.0001). Level of education had no significant impact on the effect of the intervention neither in men (p=0.39) nor in women (p=0.32).

Conclusion A population-based multifactorial lifestyle intervention did not influence social inequality in PA.

Keywords Lifestyle, Exercise, Randomised Intervention Study, Ischemic Heart Disease, Socioeconomic Position.

Statistics from Altmetric.com

Footnotes

  • Competing interests None.

  • Ethics approval This study was conducted with the approval of the local ethics committee of Copenhagen County (KA 98155).

  • Provenance and peer review Not commissioned; externally peer reviewed.

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.