A family-based intervention to increase fruit and vegetable consumption in adolescents: a pilot study

Natalie Pearson, Andrew J Atkin, Stuart JH Biddle, Trish Gorely
2010 Public Health Nutrition  
Objective: To evaluate the feasibility and effectiveness of a pilot family-based newsletter intervention to increase fruit and vegetable (FV) consumption among adolescents. Design: Family-based, two-group randomised control trial with baseline, postintervention and follow-up measures. The intervention group received two FV newsletter packs over a 1 month period by postal mail. Social cognitive and behavioural choice theories provide the theoretical framework for the design and development of
more » ... d development of intervention materials. Control families were provided with all intervention materials at the end of the study. Adolescent FV consumption was assessed by an FFQ. Adolescent-reported barriers to eating FV, FV habits and preferences were the secondary outcomes, along with parent FV consumption, and parents reported knowledge, encouragement, home availability and accessibility of FV. Repeated-measures ANOVA was used to detect differences in behavioural and psychosocial outcomes between groups, time and group-by-time. Setting: East Midlands, UK. Subjects: Forty-nine parents and adolescents aged 12-14 years. Results: Process evaluation indicated high reach, dose acceptability and fidelity of the intervention. At post-intervention and 6 weeks later at follow-up, adolescents in the intervention group had significantly higher fruit: (P , 0?01) and vegetable (P , 0?05) consumption and higher preferences for vegetables (P , 0?01), compared with the control group. At post-intervention and follow-up, parents in the intervention group had significantly higher fruit (P , 0?001) and vegetable (P , 0?01) consumption and reported higher accessibility of fruit and vegetables (P , 0?001), compared with those in the control group. Conclusions: Family-based, newsletter interventions promoting FV consumption to adolescents appear to be feasible and effective at increasing FV consumption.
doi:10.1017/s1368980010000121 pmid:20196908 fatcat:h2kbygpvsfgv3gno672f4jvtpm