Factors associated with non-participation and drop-out in a lifestyle intervention for workers with an elevated risk of
- PDF / 483,483 Bytes
- 9 Pages / 610 x 792 pts Page_size
- 109 Downloads / 170 Views
BioMed Central
Open Access
Research
Factors associated with non-participation and drop-out in a lifestyle intervention for workers with an elevated risk of cardiovascular disease Iris F Groeneveld1,2, Karin I Proper*1,2, Allard J van der Beek1,2, Vincent H Hildebrandt2,3 and Willem van Mechelen1,2 Address: 1Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands, 2Body@Work, Research Center Physical Activity, Work and Health, TNO-VUmc, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands and 3TNO Prevention and Care, Department of Physical Activity and Health, Wassenaarseweg 56, 2301 CE Leiden, The Netherlands Email: Iris F Groeneveld - [email protected]; Karin I Proper* - [email protected]; Allard J van der Beek - [email protected]; Vincent H Hildebrandt - [email protected]; Willem van Mechelen - [email protected] * Corresponding author
Published: 1 December 2009 International Journal of Behavioral Nutrition and Physical Activity 2009, 6:80
doi:10.1186/1479-5868-6-80
Received: 6 May 2009 Accepted: 1 December 2009
This article is available from: http://www.ijbnpa.org/content/6/1/80 © 2009 Groeneveld et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract Background: Non-response and drop-out are problems that are commonly encountered in health promotion trials. Understanding the health-related characteristics of non-participants and drop-outs and the reasons for non-participation and drop-out may be beneficial for future intervention trials. Methods: Male construction workers with an elevated risk of cardiovascular disease (CVD) were invited to participate in a lifestyle intervention study. In order to investigate the associations between participation and CVD risk factors, and drop-out and CVD risk factors, crude and multiple logistic regression analyses were performed. The reasons for non-participation and drop-out were assessed qualitatively. Results: 20% of the workers who were invited decided to participate; 8.6% of the participants dropped out before the first follow-up measurement. The main reasons for non-participation were 'no interest', 'current (para-)medical treatment', and 'feeling healthy', and for drop-out they were 'lack of motivation', 'current (para-)medical treatment', and 'disappointment'. Participants were 4.2 years older, had a higher blood pressure, higher total cholesterol, and lower HDL cholesterol than non-participants, and were more likely to report 'tiredness and/or stress' and 'chest pain and/or shortness of breath'. After adjusting for age, most risk factors were not significantly associated with participation. Drop-outs were 4.6 years younger than those who complet
Data Loading...
