An examination of ethnic differences in cigarette smoking intention among female teenagers

The State of Norm-Based Antismoking Research: Conceptual Frameworks, Research Designs, and Implications for Interventions

This synthesis review examined 189 qualified studies on norms and smoking in terms of conceptual frameworks, types of social norms, research designs, dependent variables, independent variables and covariates, and findings related to norms. Results show that 7.9% were experimental, and the remaining were cross-sectional. By far, the reasoned action approach (RAA) was the most-cited theory, but RAA was not used to guide experimental designs. The social norms approach, norm focus theory, social cognitive theory guided the intervention experiments. Harmful norms were more frequently examined than healthful norms. Pro-smoking norms positively predicted smoking intentions and behaviors, whereas antismoking norms positively predicted antismoking intentions and behaviors. The over-application of RAA in cross-sectional antismoking research has yielded repetitive findings. Norm-based experiments can adopt other theoretical perspectives to offer insights into antismoking interventions. The RAA constructs are still applicable and can be integrated into intervention designs.

Fruit and vegetable dietary behavior in response to a low-intensity dietary intervention: the rural physician cancer prevention project

CONTEXT

Increased fruit and vegetable intake can reduce cancer risk. Information from this study contributes to research exploring health disparities in high-risk dietary behavior.

PURPOSE

Changes in fruit and vegetable behavior were evaluated to assess the effects of a low-intensity, physician-endorsed dietary intervention in a rural population.

METHODS

The study was a randomized trial of 754 patients from 3 physician practices in rural Virginia. Low-literacy nutrition education materials and personalized dietary feedback were administered by mail and telephone. Mixed model analysis of variance was used to determine the effect of the intervention on fruit and vegetable intake behavior, knowledge, intentions, and self-efficacy at 1, 6, and 12 months.

FINDINGS

The intervention effect was moderated by age, race, sex, and education. Intake at 1 and 6 months was increased for older and younger participants and those with some college, and further maintained at 12 months by those who did not complete high school. African Americans in the intervention group displayed significantly greater intentions to increase fruit/vegetable intake than whites/others. Knowledge of fruit/vegetable recommendations significantly increased in the intervention group at 12 months, particularly for men.

CONCLUSIONS

For the rural population, a low-intensity physician-endorsed self-help dietary intervention was successful in initiating fruit and vegetable dietary changes at 1 and 6 months post-intervention, and increasing intentions to change in African Americans. The relationship of the moderating effects of age, race, sex and education need to be further explored in relation to dietary intervention and dietary behavior change for the rural population.