B. Kim

Cardiovascular Disease Risk Factors in Korean American Elderly

An in-depth cardiovascular risk factor assessment was carried out in a sample of 205 Korean American elderly in Maryland, consisting of 75 males and 130 females aged 60 to 89 years (mean age = 69.9±6.5 years). Six risk factors were assessed in each participant: high blood pressure, current smoking, high blood cholesterol, overweight, sedentary lifestyle, and diabetes. The findings of this cross-sectional study suggested that high blood pressure was the leading cardiovascular disease risk factor among Korean American elderly (71%), followed by high blood cholesterol (53%), overweight (43%), sedentary life style (24%), diabetes (18%), and smoking (7%). Two thirds of the sample had multiple cardiovascular disease risk factors. The pattern of prevalence and risk factors that was observed was consistent with the distribution of multiple risk factors in that the combination of high blood pressure, high blood cholesterol, and overweight was most common in Korean American elderly (62%). These findings indicate that culturally relevant and salient strategies are needed to reduce multiple risk factors in this population.

A Community-Based, Culturally Tailored Behavioral Intervention for Korean Americans With Type 2 Diabetes

Purpose The purpose of this study is to test the efficacy of a culturally tailored comprehensive type 2 diabetes management intervention for Korean American immigrants (KAIs) with type 2 diabetes. Methods A randomized controlled pilot trial with 2 parallel arms (intervention vs control) with a delayed intervention design was used. A total of 79 KAIs, recruited from the Baltimore-Washington area, completed baseline, 18-week, and 30-week follow-ups (intervention, n = 40; control, n = 39). All participants had uncontrolled type 2 diabetes (hemoglobin A1C ≥7.5%) at baseline. The authors’ comprehensive, self-help intervention program for type 2 diabetes management (SHIP-DM) consisted of a 6-week structured psychobehavioral education, home glucose monitoring with teletransmission, and bilingual nurse telephone counseling for 24 weeks. The primary outcome of the study was A1C level, and secondary outcomes included an array of psychobehavioral variables. Results Using analysis of covariance, the findings support that the proposed intervention was effective in significantly lowering A1C and fasting glucose and also in improving psychosocial outcomes in the sample. Specifically, the amount of reduction in A1C among intervention group participants was 1.19% at 18 weeks and 1.31% at 30 weeks, with 10% and 15.5% of the participants achieving the suggested goal of A1C <7% at 18 and 30 weeks of follow-up, respectively. Conclusions The results highlight the clinical efficacy of the SHIP-DM intervention composed of a 6-week education program, self-monitoring, and follow-up counseling, in terms of maintaining the improved intervention effects obtained and in terms of glucose control.

Does knowledge matter? Intentional medication nonadherence among middle-aged Korean Americans with high blood pressure

Aim: To examine predictors of intentional and unintentional nonadherence to antihypertensive medication regimens and their relationships to blood pressure outcomes. Background: Although poor adherence to medical regimens is a major concern in the care of patients with high blood pressure (HBP), our understanding of the complex behavior related to adherence is limited. Moreover, few studies have been devoted to understanding adherence issues in ethnic minority groups, such as the interplay between cultural beliefs and HBP medication-taking behaviors. Design: A cross-sectional analysis was performed to assess the factors affecting nonadherence to antihypertensive medication regimens. Methods: The data used in this analysis came from an ongoing HBP intervention trial involving middle-aged (40-64 years) Korean Americans with HBP. A total of 445 Korean Americans with HBP was enrolled in the trial at baseline. Of these, 208 participants who were on antihypertensive medication were included in the analysis. Using multivariate logistic regression, we examined theoretically selected variables to assess their relationships to intentional and unintentional nonadherence in this sample. Results: Approximately 53.8% of the subjects endorsed 1 or more types of nonadherent behaviors. After controlling for demographic variables, multivariate analysis revealed that a greater number of side effects from the medication (adjusted odds ratio [OR], 1.19; 95% confidence interval [CI], 1.07 to 1.33) and a lower level of HBP knowledge (adjusted OR, 0.89; 95% CI, 0.79 to 0.99) were significantly associated with intentional nonadherence. Unintentional nonadherence was less strongly associated with the study variables examined in the analysis. Conclusion: Our findings indicate that intentional nonadherence to antihypertensive medication that stems from incomplete knowledge of HBP treatment is prevalent among middle-aged Korean Americans with HBP. The results highlight the strong need for an intervention that focuses on increasing patient knowledge about HBP, including the benefits and side effects of antihypertensive medication. This type of focused intervention may help reduce intentional nonadherence to antihypertensive medications and ultimately result in achieving adequate BP control in this high-risk group.

Barriers to and strategies for recruiting Korean Americans for community-partnered health promotion research

While increasing numbers of researchers are targeting ethnic minorities in order to address their health disparities, the unique health needs of Korean Americans are not well known to the mainstream community, and only relatively few systematic research studies have been conducted in this “hard-to reach” population. The purpose of this paper is to describe the barriers to recruiting participants for health promotion research and to identify facilitators in the community that can contribute to this effort. We have analyzed data pertaining to the 14 studies we have conducted since 1998, which included a total sample of about 2,400 Korean Americans. We describe in detail the unique recruitment challenges that we have faced in regard to the culture, language, sociodemographic characteristics of the participants, such as gender and age, and other community level barriers. Multiple strategies at different levels (individual and community) to address these issues are discussed.

Predictors of Older Korean Americans' Participation in Colorectal Cancer Screening

BACKGROUND Cancer is the second leading cause of death among Korean Americans aged 65 and older. Colorectal cancer is the second most commonly diagnosed cancer among Korean American women and the third among men. The purpose of this study was to examine the rates of colorectal cancer (CRC) screening and the correlates of screening tests. METHODS The study employed cross-sectional face-to-face interviews with a sample of 205 Korean American elderly aged 60 and older. RESULTS About 18% of respondents had ever had a fecal occult blood test (FOBT) and 11%, sigmoidoscopy. A history of bloody stool was related to having FOBT. In multiple logistic regression analyses, government assistance, routine checkups, having insurance, and speaking fluent English were associated with having FOBT. Marital status, proportion of time spent in the U.S., and general health status were related to having sigmoidoscopy. CONCLUSIONS The findings suggest a need for further research addressing barriers to cancer screening in Korean Americans.

Correlates of self-care behaviors for managing hypertension among Korean Americans: A questionnaire survey

BACKGROUND While self-care behaviors have been documented as one of the main determinant of hypertension control, studies investigating correlates of self-care behaviors have been rare regarding hypertension among minority population. OBJECTIVES The purpose of this study was to examine factors associated with self-care behaviors for hypertension using a community sample of Korean Americans. DESIGN A descriptive cross-sectional design. SETTINGS Community setting in the Baltimore-Washington metropolitan area. PARTICIPANTS The sample included 445 middle-aged (40-64 years of age) Korean Americans with hypertension (systolic BP > or = 140 and/or diastolic BP > or = 90 mmHg; or taking antihypertensive medication). METHODS Guided by Social Cognitive Theory, a variety of personal (age, gender, marital status, employment status, years in U.S., duration of hypertension, hypertension knowledge, hypertension belief, and hypertension control self-efficacy) and environmental (social support) factors were examined in relation to hypertension self-care behaviors, including medication-taking, exercise, diet, and weight control. RESULTS The model explained 18.0% of the total variance in self-care scores. Hierarchical multiple regression revealed that personal factors contributed significantly to the explanatory model, whereas social support did not add much. Examination of individual regression coefficients showed that Korean Americans who were older, who had longer duration of hypertension, and who had higher hypertension control self-efficacy were more likely to have higher self-care scores. CONCLUSIONS Hypertension control self-efficacy emerged as the most significant contributing factor to hypertension self-care. Future intervention programs should focus on improving hypertension control self-efficacy as a modifiable personal factor.

Development and validation of the high blood pressure-focused health literacy scale

OBJECTIVE While the role of health literacy in chronic disease management is well documented, few intervention studies have been reported. A major barrier to designing and implementing such interventions is the lack of valid health literacy tools. This study developed and tested a novel health literacy scale for individuals with high blood pressure (HBP). METHODS A two-step design process was used: In the construction phase, focus group studies and a literature review were conducted to generate a pool of items. The testing phase involved a psychometric evaluation and pilot-testing of the scale on hypertensive Korean Americans (n=386). The end product was a HBP-health literacy scale (HBP-HLS) with two essential domains, print literacy and functional health literacy. RESULTS Psychometric testing indicated that the scale was reliable (Kuder-Richardson-20 coefficient=0.98), valid (content validity index ≥0.8), and significantly correlated with theoretically selected variables (education, r=0.67, p<0.01; HBP knowledge, r=0.33, p<0.01). CONCLUSION The HBP-HLS demonstrated its utility for evaluating HBP management interventions in the community setting. PRACTICE IMPLICATIONS Utilizing the HBP-HLS should be considered as a potential tool for improving health literacy and evaluating intervention studies in the context of HBP management.

Translating Current Dietary Guidelines Into a Culturally Tailored Nutrition Education Program for Korean American Immigrants With Type 2 Diabetes

Purpose The purpose of this article is to describe the process of translating evidence-based dietary guidelines into a tailored nutrition education program for Korean American immigrants (KAI) with type 2 diabetes mellitus (DM). Methods Community-based participatory research (CBPR) is a research process involving researchers and communities to build a collaborative partnership. The study was conducted at a community-based organization. In a total of 79 KAI (intervention, n = 40; control, n = 39) with uncontrolled type 2 DM (A1C ≥7.5%), 44.3% were female and the mean age was 56. 5 ± 7.9 years. A culturally tailored nutrition education was developed by identifying community needs and evaluating research evidence. The efficacy and acceptability of the program was assessed. Results In translating dietary guidelines into a culturally relevant nutrition education, culturally tailored dietary recommendations and education instruments were used. While dietary guidelines from the American Diabetes Association (ADA) were used to frame nutrition recommendations, additional content was adopted from the Korean Diabetes Association (KDA) guidelines. Culturally relevant intervention materials, such as Korean food models and an individually tailored serving table, were utilized to solidify nutritional concepts as well as to facilitate meal planning. Evaluation of the education revealed significantly increased DM-specific nutrition knowledge in the intervention group. The participants’ satisfaction with the education was 9.7 on a 0 to10-point scale. Conclusion The systematic translation approach was useful for producing a culturally tailored nutrition education program for KAI. The program was effective in improving the participants’ DM-specific nutrition knowledge and yielded a high level of satisfaction. Future research is warranted to determine the effect of a culturally tailored nutrition education on other clinical outcomes. 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Implementation and success of nurse telephone counseling in linguistically isolated Korean American patients with high blood pressure.

OBJECTIVE Nurse telephone counseling can improve the management of chronic conditions, but the effectiveness of this approach in underserved populations is unclear. This study evaluated the use of bilingual nurse-delivered telephone counseling in Korean Americans (KAs) participating in a community-based intervention trial to improve management of hypertension. METHODS KAs were randomized to receive 12 months of hypertension-related telephone counseling that was more intensive (bi-weekly) or less intensive (monthly). Counseling logs were kept for 360 KAs who completed the pre- and post-intervention evaluations. RESULTS The overall success rate for the intervention was 80.3%. The level of success was significantly influenced by the dose of counseling, employment status, and years of US residence. Over the 12-month counseling period, both groups showed improvement with regard to medication-taking, alcohol consumption, and exercise but not smoking, with no significant group differences. CONCLUSION Bilingual telephone counseling could reach monolingual KAs and improve their hypertension management behavior. PRACTICE IMPLICATIONS Bilingual nurse telephone counseling may have wide applicability, serving as an effective means of disseminating evidence-based chronic disease management guidelines to a linguistically isolated community with limited health resources and information.

The effect of a community-based self-help multimodal behavioral intervention in Korean American seniors with high blood pressure.

BACKGROUND Great strides have been made in improving heart health in the United States during the last 2 decades, yet these strides have not encompassed many ethnic minority populations. There are significant health disparity gaps stemming from both a paucity of valid research and a lack of culturally sensitive interventions. In particular, many Korean Americans with chronic illnesses encounter difficulty navigating the healthcare system because of limited health literacy. METHODS The effect of a multimodal Self-Help Intervention Program on the Control of High Blood Pressure (HBP) was tested in a community-based clinical trial for Korean American seniors. Of 440 seniors enrolled, 369 completed the study (184 in the intervention group and 185 in the control group; mean age = 70.9±5.3 years). The intervention group received 6 weekly educational sessions on HBP management skill building, including health literacy training, followed by telephone counseling and home blood pressure (BP) monitoring for 12 months. RESULTS Findings support that the Self-Help Intervention Program on the Control of HBP was effective in controlling BP in this ethnic/linguistic minority population. The BP control rates for the intervention and control groups were 49.5% vs. 43.2% at baseline, 58.5% vs. 42.4% at 6 months, 67.9% vs. 52.5% at 12 months, and 54.3% vs. 53.0% at 18 months. Significant changes were observed over time in some psychobehavioral outcomes, including self-efficacy for BP control, medication adherence behavior, HBP knowledge, and depression. CONCLUSIONS The study findings suggest that the multimodal Self-Help Intervention Program on the Control of HBP is effective at promoting optimal HBP control for this ethnic/linguistic minority population. CLINICAL TRIALS REGISTRY NCT00406614.