Purpose: Poor diet is among the leading causes of morbidity and premature mortality in older women. The purpose of the study was to determine if theory-based tailored newsletters were more effective than generic newsletters in changing eating behaviors among rural midlife and older women. Conceptual Framework: The intervention was framed within the Health Promotion Model (Pender, 2002). Eating behavior as recommended in the Healthy People 2010 Objectives was studied. Subjects: 225 women aged 50-69 recruited by random digit dialing from two geographically separate communities. Methods: At two rural sites in the midwestern U.S., women were supervised in responding to established reliable and valid questionnaires on a computer. Eating behaviors were measured by the Block Health Habit and History Questionnaire. An assessment of eating biomarkers by the research nurse included lipids, body mass index, and % body fat measured by bioimpedance analysis. The intervention consisted of 18 computer-generated tailored newsletters for the experimental group and 18 generic newsletters for the comparison group over a 12 month period. Newsletters were sent every two weeks for six months and then monthly for the next six months. Results and Conclusions: RM ANOVAs found significant (.035 - .001) time effects at baseline, 6 & 12 months for all behavioral markers except daily dairy servings and for the biomarkers of LDL-C and BMI. Significant (<.05) time x group effects were found for daily fruit and vegetable servings and % calories from saturated fats. Significant decreases from baseline to 12 months were found for both groups for LDL-C; the tailored group had increases in fruit and vegetables servings and decreases in % calories from fat and saturated fat. Percentage of change will be reported. Both tailored and generic newsletters influenced eating behaviors and biomarkers; tailored newsletters had a greater influence over time for some measures.
Funded by NINR Grant No. R01 NR04861
Session #1195 - Prevention: Beliefs and Interventions
The 29th Annual MNRS Research Conference (April 1-4, 2005)