scholarly journals Intervention Based Exclusively on Stage-Matched Printed Educational Materials Regarding Healthy Eating Does Not Result in Changes to Adolescents’ Dietary Behavior

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Natacha Toral ◽  
Betzabeth Slater
Keyword(s):  
Stages Of Change ◽  
Healthy Eating ◽  
Self Efficacy ◽  
Vegetable Intake ◽  
Dietary Behavior ◽  
Decisional Balance ◽  
Fruit And Vegetable Intake ◽  
Fruit And Vegetable ◽  
Educational Materials ◽  
Printed Educational Materials

Purpose.To assess the impact of a six-month stage-based intervention on fruit and vegetable intake, regarding perceived benefits and barriers, and self-efficacy among adolescents.Design.Randomized treatment-control, pre-post design.Subjects/Setting.Schools were randomized between control and experimental groups. 860 adolescents from ten public schools in Brasília, Federal District, Brazil were evaluated at baseline; 771 (81%) completed the study.Intervention.Experimental group received monthly magazines and newsletters aimed at promotion of healthy eating.Measures.Self-reported fruit and vegetable intake, stages of change, self-efficacy and decisional balance scores were evaluated at baseline and post-intervention in both groups.Analysis.The effectiveness of the intervention was evaluated using the analysis of covariance model (ANCOVA) and repeated measurement analysis by means of weighted least squares. Comparison between the proportions of adolescents who advanced through the stages during the intervention was performed using the Mantel-Haenszel chi-square test.Results.After adjusting for sex and age, study variables showed no modifications through the proposed intervention. There was no statistical difference in participant mobility in the intervention and control groups between the stages of change, throughout the study.Conclusion.A nutritional intervention based exclusively on distribution of stage-matched printed educational materials was insufficient to change adolescents’ dietary behavior.

scholarly journals Stages of Change for Increasing Fruit and Vegetable Intake in a Japanese Population

2019 ◽  
Vol 11 (7) ◽  
pp. 139
Author(s):  
Da-Hong Wang ◽  
Michiko Kogashiwa ◽  
Naoko Mori ◽  
Shikibu Yamashita ◽  
Wakako Fujii ◽  
...  
Keyword(s):  
Stages Of Change ◽  
Self Efficacy ◽  
Vegetable Intake ◽  
Linear Trend ◽  
Cross Sectional Study ◽  
Fruit And Vegetable Intake ◽  
Fruit Intake ◽  
Fruit And Vegetable ◽  
Cross Sectional ◽  
Maintenance Stage

OBJECTIVE: Thhis study aimed to investigate the reason why people choose to consume less vegetable and fruit through examining how the stage of change and psycho-social parameters relate to vegetable and fruit intake. METHODS: We carried out a cross-sectional study in 4 regions of Japan in which 2308 individuals (1012 men and 1296 women) aged 18 years or older who completed the questionnaires were included in the study. RESULTS: The results showed 56% of the participants were in the precontemplation stage (not thinking about consuming recommended amount of fruit and vegetable) and their average amounts of vegetable and fruit intake were far below the level of current recommendations, and subjects in the precontemplation stage showed lower scores of attitude and self efficacy. Men were more likely to be in precontemplation (67.7%) and less likely to be in action/maintenance stage (7.9%) than women (46.9%, 12.1%, respectively) (p < 0.001). We also observed the scores of attitude (p = 0.06) and self-efficacy (p < 0.01) rose as the stage went up from the precontemplation to action/maintenance for increasing vegetable and fruit intake. Moreover, a linear trend was found toward higher vegetable (p < 0.05) and fruit (p = 0.121) intake from precontemplation to action/maintenance stage. CONCLUSION: The present evidence suggests more attention should be focused on strategy for perceptions of personal need for recommended amount of vegetable and fruit intake for those who are in the precontemplation stage. Moreover, effective programs on enhancement of self-efficacy and attitude toward vegetable and fruit consumption are needed for increasing the vegetable and fruit intake.

scholarly journals Associations of psychosocial factors with fruit and vegetable intake among African-Americans

2007 ◽  
Vol 10 (7) ◽  
pp. 701-711 ◽  
Author(s):  
Joanne L Watters ◽  
Jessie A Satia ◽  
Joseph A Galanko
Keyword(s):  
African American ◽  
African Americans ◽  
Psychosocial Factors ◽  
Self Efficacy ◽  
Vegetable Intake ◽  
African American Men ◽  
Predisposing Factors ◽  
Fruit And Vegetable Intake ◽  
Fruit And Vegetable ◽  
Enabling Factors

AbstractObjectiveTo examine associations of various psychosocial factors with fruit and vegetable intake in African-American adults.MethodsA cross-sectional survey of a population-based sample of 658 African-Americans, aged 18–70 years, in North Carolina. Information was collected on diet-related psychosocial (predisposing, reinforcing and enabling) factors based on the PRECEDE (Predisposing, Reinforcing, and Enabling Constructs in Educational Diagnosis and Evaluation) planning framework; demographic, lifestyle and behavioural characteristics, and fruit and vegetable intake.ResultsThe mean participant age was 43.9 years (standard deviation 11.6), 57% were female and 76% were overweight/obese. Participants expressed healthy beliefs regarding many of, but not all, the psychosocial factors. For example, although half of the respondents believed it is important to eat a diet high in fruits/vegetables, only 26% knew that ≥ 5 daily servings are recommended. The strongest associations of the psychosocial factors with fruit/vegetable intake were for predisposing factors (e.g. belief in the importance of a high fruit/vegetable diet and knowledge of fruit/vegetable recommendations) and one reinforcing factor (social support), with differences between the healthiest and least healthy responses of 0.5–1.0 servings per day. There was evidence of effect modification by gender in associations between psychosocial factors and fruit/vegetable consumption (e.g. self-efficacy was only significant in women), with higher intakes and generally healthier responses to the psychosocial variables in women than men.ConclusionsInterventions to increase fruit/vegetable intake in African-Americans may be more effective if they focus primarily on predisposing factors, such as knowledge, self-efficacy and attitudes, but not to the exclusion of reinforcing and enabling factors. The psychosocial factors that are targeted may also need to be somewhat different for African-American men and women.

The Importance of Decisional Balance and Self-Efficacy in Relation to Stages of Change for Fruit and Vegetable Intakes by Young Adults

2002 ◽  
Vol 16 (3) ◽  
pp. 157-166 ◽  
Author(s):  
Jun Ma ◽  
Nancy M. Betts ◽  
Tanya Horacek ◽  
Constance Georgiou ◽  
Adrienne White ◽  
...  
Keyword(s):  
Young Adults ◽  
Stages Of Change ◽  
Self Efficacy ◽  
Decisional Balance ◽  
Fruit And Vegetable

scholarly journals Reliability and validity of a questionnaire to measure personal, social and environmental correlates of fruit and vegetable intake in 10–11-year-old children in five European countries

2005 ◽  
Vol 8 (2) ◽  
pp. 189-200 ◽  
Author(s):  
I De Bourdeaudhuij ◽  
K-I Klepp ◽  
P Due ◽  
C Perez Rodrigo ◽  
MDV de Almeida ◽  
...  
Keyword(s):  
Predictive Validity ◽  
Self Efficacy ◽  
Vegetable Intake ◽  
European Countries ◽  
Fruit And Vegetable Intake ◽  
Fruit And Vegetable ◽  
Retest Reliability ◽  
Environmental Correlates ◽  
Test Retest Reliability ◽  
General Self Efficacy

AbstractObjectivesTo investigate the internal consistency of the scales and the test–retest reliability and predictive validity of behaviour theory-based constructs measuring personal, social and environmental correlates of fruit and vegetable intake in 10–11-year-old children.DesignTest–retest with one-week interval.SettingFive European countries: Norway, Spain, Denmark, Portugal, Belgium.SubjectsThree hundred and twenty-six children completed the questionnaire during class hours.ResultsFor the total sample across all countries, the test–retest reliability was good to very good (intra-class correlation coefficient (ICC) >0.60) for 12 out of the 15 fruit constructs and also for 12 out of the 15 vegetable constructs. Acceptable ICCs, ranging between 0.50 and 0.59, were found for the remaining constructs. Test–retest reliability was comparable across countries. Only in Portugal were some significantly lower ICCs found for some constructs (knowledge and barriers related to fruit, general self-efficacy related to fruit and vegetables) compared with the other countries. Cronbach'sαvalues were moderate to high (range 0.52 to 0.89) with the exception of the general self-efficacy scale, which had a value below 0.50 for both fruit (α= 0.42) and vegetables (α= 0.49). Spearman correlations with intake ranged between -0.16 and 0.54 for personal determinants and between 0.05 and 0.38 for environmental determinants. Compared with other studies, predictive validity can be considered moderate to good.ConclusionsThe questionnaire provides a reliable, valid and easy-to-administer tool for assessing personal, social and environmental factors of potential influence on fruit and vegetable intake in 10–11-year-olds.

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