BMJ 2003;326:855 ( 19 April )

Primary care

Behavioural counselling to increase consumption of fruit and vegetables in low income adults: randomised trial

Andrew Steptoe, professor, ^a Linda Perkins-Porras, research nurse, ^a Catherine McKay, research nurse, ^b Elisabeth Rink, senior lecturer, ^b Sean Hilton, professor, ^b Francesco P Cappuccio, professor. ^b

^a Department of Epidemiology and Public Health, University College London, London WC1E 6BT, ^b Department of General Practice and Primary Care, St George's Hospital Medical School, London SW17 0RE

Correspondence to: A Steptoe a.steptoe{at}ucl.ac.uk

Objective: To measure the effect of brief behavioural counselling in general practice on patients' consumption of fruit and vegetables in adults from a low income population.
Design: Parallel group randomised controlled trial.
Setting: Primary health centre in a deprived, ethnically mixed inner city area.
Participants: 271 patients aged 18-70 years without serious illness.
Intervention: Brief individual behavioural counselling based on the stage of change model; time matched nutrition education counselling.
Main outcome measures: Self reported number of portions of fruit and vegetables eaten per day, plasma  carotene,  tocopherol, and ascorbic acid concentrations, and 24 hour urinary potassium excretion. Assessment at baseline, eight weeks, and 12 months.
Results: Consumption of fruit and vegetables increased from baseline to 12 months by 1.5 and 0.9 portions per day in the behavioural and nutrition groups (mean difference 0.6 portions, 95% confidence interval 0.1 to 1.1). The proportion of participants eating five or more portions a day increased by 42% and 27% in the two groups (mean difference 15%, 3% to 28%). Plasma  carotene and  tocopherol concentrations increased in both groups, but the rise in  carotene was greater in the behavioural group (mean difference 0.16 µmol/l, 0.001 µmol/l to 1.34 µmol/l). There were no changes in plasma ascorbic acid concentrations or urinary potassium excretion. Differences were maintained when analysis was restricted to the 177 participants with incomes £400 (596, $640) a week.
Conclusions: Brief individual counselling in primary care can elicit sustained increases in consumption of fruit and vegetables in low income adults in the general population.

What is already known on this topic Brief interventions can be effective in increasing consumption of fruit and vegetables Biomarkers and intention to treat analyses have seldom been used in such interventions, and few studies have targeted low income populations What this study adds Compared with nutritional counselling, brief behavioural counselling carried out by nurses in primary care led to greater increases in fruit and vegetable intake and in plasma  carotene concentration Favourable effects were observed in low income adults living in a deprived inner city area

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© 2003 BMJ Publishing Group Ltd
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Rapid Responses:

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an apple a day?

Stephen F Hayes
bmj.com, 18 Apr 2003 [Full text]

Brief interventions have useful long-term results

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Re: Brief interventions have useful long-term results

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Re: Brief interventions have useful long-term results

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More data please

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