OBJECTIVE: To investigate whether the effect of an individualised multi-factorial lifestyle intervention on dietary habits differs across socioeconomic groups. METHODS: The study was an individualised multi-factorial lifestyle intervention study with a control group, Inter99 (1999-2006), Copenhagen, Denmark. Participants in the intervention group (n=6 091) received lifestyle intervention during a five-year period. The control group (n=3 324) was followed by questionnaires. Multilevel regression analyses were used, including interaction term between intervention effect and socioeconomic position (SEP) and analysed separately for men and women. SEP was measured as length of education and employment status and dietary habits were measured by a validated food frequency questionnaire. RESULTS: Men with a short education improved their dietary habits more (net-change [95% confidence interval]) (0.25 points [-0.01;0.52]) than men with longer education (0.02 points [-0.09;0.14]), (interaction: p=0.02). Furthermore, unemployed women improved their dietary intake more (0.33 points [0.05;0.61]) than employed women (0.01 points [-0.10;0.11]), (interaction: p=0.03). Similar results were found for fruit intake, whereas no significant interactions were found for fish, fat and vegetable intake. CONCLUSIONS: Individualised dietary interventions do not increase and may even decrease or hinder further widening of the social inequalities in health due to unhealthy dietary habits among socially disadvantaged individuals.
RCT Entities:
OBJECTIVE: To investigate whether the effect of an individualised multi-factorial lifestyle intervention on dietary habits differs across socioeconomic groups. METHODS: The study was an individualised multi-factorial lifestyle intervention study with a control group, Inter99 (1999-2006), Copenhagen, Denmark. Participants in the intervention group (n=6 091) received lifestyle intervention during a five-year period. The control group (n=3 324) was followed by questionnaires. Multilevel regression analyses were used, including interaction term between intervention effect and socioeconomic position (SEP) and analysed separately for men and women. SEP was measured as length of education and employment status and dietary habits were measured by a validated food frequency questionnaire. RESULTS:Men with a short education improved their dietary habits more (net-change [95% confidence interval]) (0.25 points [-0.01;0.52]) than men with longer education (0.02 points [-0.09;0.14]), (interaction: p=0.02). Furthermore, unemployed women improved their dietary intake more (0.33 points [0.05;0.61]) than employed women (0.01 points [-0.10;0.11]), (interaction: p=0.03). Similar results were found for fruit intake, whereas no significant interactions were found for fish, fat and vegetable intake. CONCLUSIONS: Individualised dietary interventions do not increase and may even decrease or hinder further widening of the social inequalities in health due to unhealthy dietary habits among socially disadvantaged individuals.
Authors: Rory McGill; Elspeth Anwar; Lois Orton; Helen Bromley; Ffion Lloyd-Williams; Martin O'Flaherty; David Taylor-Robinson; Maria Guzman-Castillo; Duncan Gillespie; Patricia Moreira; Kirk Allen; Lirije Hyseni; Nicola Calder; Mark Petticrew; Martin White; Margaret Whitehead; Simon Capewell Journal: BMC Public Health Date: 2015-05-02 Impact factor: 3.295
Authors: Greig Inglis; Daryll Archibald; Lawrence Doi; Yvonne Laird; Stephen Malden; Louise Marryat; John McAteer; Jan Pringle; John Frank Journal: SSM Popul Health Date: 2018-10-19
Authors: Saskia Wouters; Viviane Thewissen; Mira Duif; Rob Jh van Bree; Lilian Lechner; Nele Jacobs Journal: Public Health Nutr Date: 2018-05-29 Impact factor: 4.022