School of Sport, Exercise & Health Sciences, Loughborough University, Loughborough, Leicestershire, UK.
Public Health Nutr. 2010 Jun;13(6):876-85. doi: 10.1017/S1368980010000121. Epub 2010 Mar 3.
To evaluate the feasibility and effectiveness of a pilot family-based newsletter intervention to increase fruit and vegetable (FV) consumption among adolescents.
Family-based, two-group randomised control trial with baseline, post-intervention 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 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.
East Midlands, UK.
Forty-nine parents and adolescents aged 12-14 years.
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.
Family-based, newsletter interventions promoting FV consumption to adolescents appear to be feasible and effective at increasing FV consumption.
评估基于家庭的试点通讯干预增加青少年水果和蔬菜（FV）消费的可行性和有效性。
基于家庭的、两组随机对照试验，具有基线、干预后和随访测量。干预组通过邮寄方式在 1 个月内收到两期 FV 通讯包。社会认知和行为选择理论为干预材料的设计和开发提供了理论框架。对照组在研究结束时收到了所有的干预材料。青少年 FV 消费通过 FFQ 进行评估。青少年报告的 FV 食用障碍、FV 习惯和偏好是次要结果，以及父母的 FV 消费、父母报告的知识、鼓励、FV 的家庭可得性和可及性。重复测量方差分析用于检测组间、时间和组间时间差异对行为和社会心理结果的影响。
英国东米德兰兹。
49 名年龄在 12-14 岁的父母和青少年。
过程评估表明干预具有高覆盖范围、可接受的剂量和保真度。在干预后和 6 周后的随访中，与对照组相比，干预组青少年的水果摄入量显著增加（P < 0.01）和蔬菜摄入量（P < 0.05），对蔬菜的偏好也更高（P < 0.01）。在干预后和随访时，与对照组相比，干预组的父母水果（P < 0.001）和蔬菜（P < 0.01）摄入量显著增加，并且报告水果和蔬菜的可及性更高（P < 0.001）。
针对青少年的基于家庭的、促进 FV 消费的通讯干预似乎是可行且有效的，可以增加 FV 消费。
