Abstract 1817: Fifteen-month Blood Pressure Outcomes of a Behavioral Intervention Using a Community-Based Participatory Research Approach in Korean Immigrants
This paper reports the process and outcomes of a 15-month behavioral intervention trial using a community-based participatory research (CBPR) approach in a group of Korean immigrants residing in the Baltimore-Washington metropolitan area. While many researchers and policy makers have suggested CBPR as a critical methodology to develop, test, and sustain meaningful intervention programs in underserved populations, most published studies using CBPR have been limited to either exploratory descriptions of need assessments of a community or formative evaluations of small programs without adequate outcomes evaluations. We attempted to address this gap by testing the effects of a full-scale community-based multifaceted behavioral BP control intervention using CBPR. A total of 360 middle-aged (40 – 64 yrs) Korean immigrants completed our approximately15-month intervention that consisted of 6-week behavioral education followed by tailored telephone counseling conducted by bilingual nurses for 12 months. In addition, every participant used home BP monitoring with telephone transmission system as a means to enhance self-care skills which also served as reliable and constant BP measurements over the intervention period. Final analysis of BP outcomes showed a dramatic increase in BP control rates which was sustained over one-year: At baseline, less than one third of the sample (30.3%) achieved BP control (< 140/90 mmHg). After the behavioral education period (approximately 3 months), 73.3% of the participants had controlled BP, a level that was maintained and continuously improved over 12 months of follow-up period (83.2% at 15 months; p < 0.001). Psycho-behavioral outcomes such as self-efficacy, depression, HBP knowledge, and medication adherence also improved as a result of our intervention (p < 0.001). The findings of our study suggest that CBPR can not only guide development and implementation of a culturally-sensitive intervention but can also serve as a viable operational strategy to conduct a rigorous community-based clinical trial in a traditionally understudied and hard-to-reach population.