TY - JOUR
T1 - Socioeconomic position and participation in baseline and follow-up visits
T2 - The Inter99 study
AU - Bender, Anne M.
AU - Jørgensen, Torben
AU - Helbech, Bodil
AU - Linneberg, Allan
AU - Pisinger, Charlotta
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Background: The aim of this paper was to identify the extent of socioeconomic inequality in participation at baseline and follow-up visits. Design: The Inter99 study is a randomized intervention with the aim of investigating the effects of an individualized lifestyle consultation on ischaemic heart disease (IHD). The study comprised 61,301 persons of which 13,016 were assigned to the intervention group. The rest formed the control group. All those in the intervention group were invited to participate in health examinations, risk assessments, and lifestyle consultations. Participants at high risk of IHD were invited to follow-up visits after 1, 3, and 5 years. Methods: Data on five socioeconomic factors were retrieved from nationwide registers. For each socioeconomic factor we estimated the relative risks and relative index of inequality of participation at the baseline visit and among high-risk participants at follow-up visits. In addition, we conducted analyses of trends in socioeconomic inequality in participation across follow-up visits. Results: Participation rates were 53% at baseline and 61-65% at the three follow-up visits. There was strong socioeconomic inequality in participation at baseline, with increasing probability of participation found with increasing level of socioeconomic position. This was smaller at follow-up visits. Except for education and housing tenure, there was an increase in socioeconomic inequality in participation across follow-up visits. Conclusions: We found strong socioeconomic inequality in participation at baseline and follow-up visits. Effort should be made to increase participation in individualized lifestyle interventions among persons of low socioeconomic position. Otherwise, the consequence may be increased socioeconomic inequality in IHD.
AB - Background: The aim of this paper was to identify the extent of socioeconomic inequality in participation at baseline and follow-up visits. Design: The Inter99 study is a randomized intervention with the aim of investigating the effects of an individualized lifestyle consultation on ischaemic heart disease (IHD). The study comprised 61,301 persons of which 13,016 were assigned to the intervention group. The rest formed the control group. All those in the intervention group were invited to participate in health examinations, risk assessments, and lifestyle consultations. Participants at high risk of IHD were invited to follow-up visits after 1, 3, and 5 years. Methods: Data on five socioeconomic factors were retrieved from nationwide registers. For each socioeconomic factor we estimated the relative risks and relative index of inequality of participation at the baseline visit and among high-risk participants at follow-up visits. In addition, we conducted analyses of trends in socioeconomic inequality in participation across follow-up visits. Results: Participation rates were 53% at baseline and 61-65% at the three follow-up visits. There was strong socioeconomic inequality in participation at baseline, with increasing probability of participation found with increasing level of socioeconomic position. This was smaller at follow-up visits. Except for education and housing tenure, there was an increase in socioeconomic inequality in participation across follow-up visits. Conclusions: We found strong socioeconomic inequality in participation at baseline and follow-up visits. Effort should be made to increase participation in individualized lifestyle interventions among persons of low socioeconomic position. Otherwise, the consequence may be increased socioeconomic inequality in IHD.
KW - Follow-up study
KW - high risk
KW - ischaemic heart disease
KW - lifestyle intervention
KW - participation
KW - register-based data
KW - socioeconomic position
UR - http://www.scopus.com/inward/record.url?scp=84902584267&partnerID=8YFLogxK
U2 - 10.1177/2047487312472076
DO - 10.1177/2047487312472076
M3 - Journal article
AN - SCOPUS:84902584267
SN - 2047-4873
VL - 21
SP - 899
EP - 905
JO - European Journal of Preventive Cardiology
JF - European Journal of Preventive Cardiology
IS - 7
ER -