Breast Cancer Screening Among Korean Americans: A Systematic Review

What factors influence the uptake of bowel, breast and cervical cancer screening? An overview of international research

BACKGROUND

For cancer screening programmes to be effective in early detection it is important that those invited can access screening services and understand the benefits of participation. A better understanding of the factors that matter to potential participants of cancer screening programmes can assist in developing strategies to increase current uptake.

METHODS

We conducted an overview of systematic reviews to answer the question: What factors influence the uptake of cancer screening services (breast, bowel and cervical) in high-income countries? A thematic approach supported by tabular summaries and qualitative heat maps was used to categorize factors, described as 'barriers' or 'facilitators'.

RESULTS

A total of 41 systematic reviews met the criteria for inclusion. The barrier with the greatest number of 'hot spots' across all three screening programmes was a fear of the unknown regarding a possible diagnosis of cancer or abnormal screening results, followed closely by a general lack of knowledge surrounding cancer screening programmes. The greatest collective facilitator to uptake was recommendation by a healthcare provider to attend screening.

CONCLUSION

Across all factors 'trust' and 'building trusted relationships' can be seen as integral to the success of cancer screening programmes and must be reflective of collaborative efforts to mitigate barriers and enhance facilitators to uptake. There is future scope to consider interventions that (i) increase demand for screening services, (ii) reduce barriers to uptake of services and/or (iii) are relevant to the healthcare system and those providing services.

Factors influencing breast cancer screening practices among women worldwide: a systematic review of observational and qualitative studies

BACKGROUND

The variation in breast cancer incidence rates across different regions may reflect disparities in breast cancer screening (BCS) practices. Understanding the factors associated with these screening behaviors is crucial for identifying modifiable elements amenable to intervention. This systematic review aims to identify common factors influencing BCS behaviors among women globally.

METHODS

Relevant papers were sourced from PubMed, Scopus, Embase, and Google Scholar. The included studies were published in English in peer-reviewed journals from January 2000 to March 2023 and investigated factors associated with BCS behaviors.

RESULTS

From an initial pool of 625 articles, 34 studies (comprising 29 observational and 5 qualitative studies) with 36,043 participants were included. Factors influencing BCS behaviors were categorized into nine groups: socio-demographic factors, health status history, knowledge, perceptions, cultural factors, cues to action, motivation, self-efficacy, and social support. The quality appraisal scores of the studies ranged from average to high.

CONCLUSIONS

This systematic review highlights factors pivotal for policy-making at various levels of breast cancer prevention and assists health promotion professionals in designing more effective interventions to enhance BCS practices among women.

The effectiveness of patient navigation services in reducing cancer screening disparities among Asian Americans

OBJECTIVES

Patient navigation has served as a useful intervention to reduce cancer disparities among diverse ethnic groups. Previous studies have consistently shown the effectiveness of patient navigation in reducing cancer disparities for ethnic minorities; however, few studies have been conducted for cancer screening behaviors focusing on the Asian population. This study aims to identify the overall effectiveness of patient navigation in cancer screening behaviors among Asian Americans through meta-analyses. In addition, this study examines the moderating effects of the type of cancers on cancer screening behaviors.

DESIGN

For data analyses, we selected 15 studies through a systematic review and meta-analyses, searching the databases of PubMed, Web of Science, Embase, Scopus, and Cochrane Library. Random-effects models were used for meta-analyses.

RESULTS

The results showed that Asian Americans who received patient navigation were more likely to participate in cancer screening behaviors than those who did not receive patient navigation regardless of the type of cancer. Publication bias was tested using a funnel plot, meta-regression, and Failsafe-N. No notable publication bias was found.

CONCLUSION

This study can provide comprehensive evidence regarding the overall effectiveness of patient navigation in cancer screening behaviors of Asian Americans.

Factors Associated with the Decision to Decline Chemotherapy in Metastatic Non-Small Cell Lung Cancer

(1) Background: Disparities in cancer treatment and outcomes have long been well-documented in the medical literature. With the eruption of advances in new treatment modalities, the long-existing disparities are now being further uncovered and brought to the attention of the medical community. While social health determinants have previously been linked to treatment disparities in lung cancer, we analyzed data from the National Cancer Database to explore sociodemographic and geographic factors related to accepting or declining physician-recommended chemotherapy. Patients diagnosed with metastatic lung cancer between 2004 and 2016 who declined chemotherapy recommended by their physicians were included in this study. Multivariate logistic regression analysis was performed. Cox Regression and Kaplan-Meier analyses were performed to look for survival characteristics. (2) Results: 316,826 patients with Stage IV lung cancer were identified. Factors related to a higher rate of refusal by patients included older age > 70, female sex, low income, lack of insurance coverage, residency in the New England region, and higher comorbidity. Patients living in areas with lower education were less likely to decline chemotherapy. (3) Conclusion: Further understanding of the factors impacting treatment decisions would be essential to improve the efficacy of care delivery in patients with cancer and reduce reversible causes of disparity.

Patient-Physician Relationships and Mammography Use in Korean American Women

Breast cancer is prevalent and fatal in Korean American women (KAW) and KAW report low screening rates. This study examined the impact of patient-physician relationships on mammography use in KAW, focusing on patient-physician ethnic and gender concordance, distrust in health professionals, and accessibility to health care. Cross-sectional survey data were collected from 340 KAW in North Carolina, and logistic regression was conducted to identify factors associated with mammography use. Having a non-Korean physician, regular check-ups, and physician recommendations were positively associated with getting mammography. Neither gender concordance nor distrust in health professionals predicted adherence to breast cancer screening guidelines. The findings highlight the critical roles of routine health care practice and usual source of care in compliance with the screening guidelines in KAW. Additional research is warranted to explore breast cancer screening recommendation behaviors and patterns of Korean American physicians compared to non-Korean counterparts.

Barriers to Breast Cancer-Screening Adherence in Vulnerable Populations

Breast cancer screening through periodic mammography has been effective in decreasing mortality and reducing the impact of this disease. However, adherence to screening does not meet the desired expectations from all populations. The main objective of this review is to explore the barriers that affect adherence to breast cancer-screening programs in vulnerable populations according to race and/or ethnicity in order to propose measures to reduce the lack of adherence. We conducted a search of publications in the PubMed Central and Scopus databases. The eligible criteria for the articles were as follows: original quantitative studies appearing in SJR- and/or JCR-indexed journals from 2016 to 2021 in English or Spanish. Most of them present common barriers, such as race/ethnicity (47%), low socioeconomic (35.3%) and educational levels (29.4%), no family history of cancer and being single (29.4%), medical mistrust and a health information gap (23.5%), lack of private health insurance (17.6%) and not having annual health checks (17.6%). The target populations with the lowest adherence were Black, Asian, Hispanic and foreign women. Implementing awareness campaigns focused on these populations should be promoted, as well as working on diversity, cultural acceptance and respect with healthcare workers, in order to improve breast cancer-screening adherence worldwide.

Examining Health-Seeking Behaviors of Korean Immigrant Women

OBJECTIVE

To identify specific factors that potentially influence the willingness of Korean immigrant women to seek preventive health care.

DESIGN

A descriptive cross-sectional correlational pilot study examining health-seeking behaviors of Korean immigrant women.

SETTING

Participants were recruited from multiple sites, including Korean churches, small businesses, e-mail, and social media.

PARTICIPANTS

A convenience sample of 87 Korean immigrant women (i.e., both parents Korean), 18 years or older, able to read and understand English and/or Korean, and currently living in the United States.

INTERVENTION/MEASUREMENTS

Data were collected using a 62-item bilingual questionnaire, composed of researcher-developed questions and the Risk Behavior Diagnosis Scale. Pearson's correlations were performed to analyze bivariate relationships between willingness to seek care and outcome variables.

RESULTS

Korean immigrant women were significantly more willing to seek preventive health care when they were prompted by outside sources of information and exhibited greater self-efficacy. Significant positive correlations were found between participant's age, years lived in the United States, cues to action, and self-efficacy.

CONCLUSION

Promoting preventive health information at every opportunity and fostering self-efficacy in culturally sensitive ways are important to increase health care use among Korean immigrant women. Developing cultural-based interventions to improve the health-seeking behaviors of Korean immigrant women was shown to be imperative.

Barriers and Facilitators to Participation in Health Screening: an Umbrella Review Across Conditions

Screening is an essential prevention practice for a number of health conditions. However, screening coverage remains generally low. Studies that investigate determinants of screening participation are becoming more common, but oftentimes investigate screening for health conditions in an individualized rather than integrated fashion. In routine clinical practice, however, healthcare professionals are often confronted with situations in which several screening procedures are recommended for the same patient. The consideration of their common determinants may support a more integrated screening approach. The objectives of this umbrella review were therefore to examine: 1) the determinants (barriers and facilitators) that have been identified in relation to recommended health screening procedures; and 2) the modifiable determinants (in primary care) common across health conditions or specific to individual procedures. Results were presented through a narrative synthesis. PubMed, PsycInfo and Cochrane were searched up to January 2022. Systematic reviews reporting determinants of participation in health screening procedures with grade A or B recommendation according to the US Preventive Services Task Force were included. A total of 85 systematic reviews were included, most which contained both qualitative and quantitative studies on determinants that describe individual factors (961 occurrences), social factors (113 occurrences, healthcare professional factors (149 occurrences), health system factors (105 occurrences) and screening procedure factors (99 occurrences). The most studied screening procedures concerned cervical cancer/human papillomavirus (n = 33), breast cancer (n = 28), colorectal cancer (n = 25) and the human immunodeficiency virus (n = 12). Other conditions have been under-studied (e.g. cardiovascular problems, lung cancer, syphilis). The individual domain, including determinants such as knowledge, beliefs and emotions, was the most covered across health conditions. Healthcare professional's recommendations and the quality of patient-provider communication were identified to have a strong influence on screening participation in most conditions. The other three domains included determinants which were more specific to a condition or a population. Various determinants modifiable in primary care were found in the individual domain and in the health system, healthcare professional and screening procedure domains. Quality was assessed as low for most systematic reviews included. The identification of various modifiable determinants common across conditions highlights the potential of an integrated screening participation approach. Interventions may address common determinants in a broader person-centred framework within which tailoring to specific procedures or populations can be considered. This approach needs to be explored in intervention studies. The systematic review registration is PROSPERO CRD42019126709.

Geographical Disparities and Factors Associated With the Decision to Decline Chemotherapy in Breast Cancer

PURPOSE

Social determinants of health have been linked to treatment-related disparities in breast cancer. We analyzed data from a large national registry to explore factors related to accepting or declining recommended chemotherapy and whether patients' decisions vary geographically across the United States.

METHODS

We used the National Cancer Database to study treatment decision making in patients with advanced breast cancer (American Joint Committee on Cancer clinical stage III-IV) between 2004 and 2017. We focused the analysis on patients who were recommended chemotherapy by their physicians but who declined this treatment. Multivariate logistic regression analysis was performed.

RESULTS

A total of N = 215,284 patients with stage III and IV breast cancers were included. Patients in the New England region were more likely to refuse chemotherapy compared with the rest, with patients in the East South Central regions (AL, KY, MS, and TN) and West South Central (AR, LA, OK, and TX) noted to be least likely to refuse chemotherapy. Factors related to a higher rate of refusal by patients included older age > 70 years; hormone receptor-positive tumors; and having higher comorbidity. Patients identified as Hispanic, those who are privately insured, and patients at academic institutions were less likely to decline chemotherapy.

CONCLUSION

This analysis identified a significant difference in rates of refusal of recommended chemotherapy by geographical location, insurance status, and treatment facility after adjusting for known social determinants of health. Further understanding of the factors affecting treatment decisions would be important to improve the efficacy of care delivery in patients with cancer and reduce reversible causes of disparity.

Beyond language: Motivators and barriers to breast cancer screening among Korean-speaking women in Sydney Metropolitan, Australia

BACKGROUND

There are persistent disparities in breast screening participation rates between Australian-born women and women from culturally and linguistically diverse (CALD) backgrounds. Cancer Institute NSW statistics from 2015 show Korean speaking women had the second lowest breast screening participation rates when compared across all language groups.

OBJECTIVE

The study aimed to gain a better understanding of the motivators and barriers associated with participation in breast cancer screening among women from a Korean background living in the Sydney metropolitan area.

METHODS

Semi-structured individual interviews (n = 32) and small focus groups (n = 28) were conducted. Data from interviews and focus group discussions were analysed using thematic analysis.

RESULTS

The findings highlight the barriers to access breast screening services extend beyond language to include perception, a lack of knowledge and understanding of the services offered, unfamiliarity with the Australian healthcare system and distrust in breast screening services.

CONCLUSION

Supporting Korean women to understand and navigate the Australian healthcare system plays an important role in increasing breast screening participation rates. Key strategies to provide this support include the delivery of culturally sensitive health promotion and community engagement as well as the provision of translated health information.

Korean American Immigrant Women's Perceived Breast Cancer Risk and Prevention Beliefs: A Qualitative Study

INTRODUCTION

With the goal of informing culturally appropriate intervention strategies, the purpose of this qualitative study was to understand the Korean American immigrant women's (KAIW) perceptions of breast cancer risk and how their perceived risk, along with normative breast cancer prevention beliefs, shaped their attitudes toward mammography.

METHOD

Semi-structured individual interviews were conducted with 30 Korean women in Los Angeles County, Los Angeles, California. Braun and Clarke's thematic analysis was used to code and analyze interview data.

RESULTS

Two major themes were identified: (a) perceived risk of breast cancer and attitudes to prevention (e.g., worried and using all means of prevention) and (b) influences on attitudes to breast cancer prevention (e.g., family members and friends' cancer experiences).

DISCUSSION

Breast cancer prevention interventions for KAIW should target perceived breast cancer risk, social factors such as women's family roles and social networks, and health information evaluation skills.

The Role of Education in Breast Cancer Beliefs and Screening Practices Among Korean Women - A quantitative study

INTRODUCTION

Cultural beliefs are influential factors that affect breast cancer screening practices among Korean women. The aim of this study was to examine the role of educational levels and compare the cultural beliefs associated with breast cancer screening practices among immigrant Korean women in Australia with those of their counterparts in Korea.

METHODS

A secondary analysis based on data from convenience samples of 245 and 249 Korean women living in Australia and Korea, respectively. Data were collected by the Korean version of Breast Cancer Screening Beliefs Questionnaire.

RESULTS

Educational level has a significant association with Korean women's cultural beliefs about breast cancer and breast cancer screening practices regardless of country of residence.

DISCUSSION

Nurses working in multicultural societies should take cultural beliefs and the role of education into account while designing strategies to promote breast cancer screening practices among immigrant Korean women.

The Association Between Fatalism and Mammography Use in Korean American Immigrant Women

Fatalism is reported as a salient cultural belief that influences cancer screening disparities in racial and ethnic minority groups. Previous studies provide a range of measures and descriptions of cancer fatalism, but no studies to our knowledge have analyzed how fatalistic views cluster together within subgroups to form distinct profiles, and how these profiles can be predicted. This study identified subgroups of Korean American immigrants with similar fatalistic beliefs toward cancer and examined the influence of fatalism, health belief variables, and health literacy on mammography use. A cross-sectional survey design was used to obtain a convenience sample of 240 Korean American immigrant women in Los Angeles, California. Latent class analysis was used to identify unobserved subgroups of fatalism. Hierarchical logistic regression models were used to identify predisposing, enabling, and need factors associated with recent mammography use. The latent class analysis model identified three cancer fatalism subgroups: high fatalism (17.8%), moderate fatalism (36.7%), and low fatalism (45.5%). Women in the high fatalism subgroup were more likely to have had a mammogram within the past 2 years than women in the low fatalism subgroup. Regression analysis revealed three facilitators of recent mammogram use: level of fatalism, perceived barriers to mammogram, and family history of cancer. Although cultural beliefs can have a powerful influence on health-seeking behavior, it is important to weigh individual and contextual factors that may weaken or mediate the relationship between fatalism and engaging in preventive care such as having a mammogram.

Analyzing factors associated with decisional stage of adopting breast cancer screening among Korean American women using precaution adoption process model

Background: Korean American (KA) women have experienced higher prevalence and lower survival rates of breast cancer (BC) than other ethnic groups in the United States. However, BC screening rates for KA women remain significantly lower than the national target (81.1%) specified by Healthy People 2020. Few studies have explained how the decision to adopt BC screening occurs and progresses and what factors contribute to this decision among KA women. This study used Weinstein's Precaution Adoption Process Model (PAPM) as a theoretical framework to examine characteristics and factors associated with the decisional stage of mammography adoption.Methods: A cross-sectional self-report survey was administered among KA women (N = 308) ages 50-80 from the Atlanta metropolitan area. A total of 281 KA women completed the survey, answering questions about socio-demographics, health-related information, mammography history, doctor recommendation, BC screening knowledge, self-efficacy for BC screening, decisional balance scores on attitudes and beliefs pertaining to mammography, and the seven-stage PAPM.Results: KA women reported a low rate of mammography uptake with about 24% and 35% of the participants undergoing mammography within the last year and two years, respectively. KA women in stages 5 (decided yes), 6 (action), and 7 (maintenance) were likely to have increased screening-related knowledge, positive decisional balance, and regular medical check-up compared to those in stages 1 (unaware), 2 (unengaged), and 3 (deciding).Conclusion: This study highlights important factors that could potentially facilitate BC screening among KA women in Georgia. The findings also provide implications for interventions and practice for increasing mammography screening among medically underserved populations.

Financial worry and psychological distress among cancer survivors in the United States, 2013-2018

BACKGROUND

A growing proportion of cancer survivors experience financial toxicity. However, the psychological burden of cancer costs and associated mental health outcomes require further investigation. We assessed prevalence and predictors of self-reported financial worry and mental health outcomes among cancer survivors.

PATIENTS AND METHODS

Data from the 2013-2018 National Health Interview Survey (NHIS) for adults reporting a cancer diagnosis were used. Multivariable ordinal logistic regressions defined adjusted odds ratios (AORs) of reporting financial worry by relevant sociodemographic variables, and sample weight-adjusted prevalence of financial worry was estimated. The association between financial worry and psychological distress, as defined by the six-item Kessler Psychological Distress Scale was also assessed.

RESULTS

Among 13,361 survey participants (median age 67; 60.0% female), 9567 (71.6%) self-reported financial worry, including worries regarding costs of paying for children's college education (62.7%), maintaining one's standard of living (59.7%), and medical costs due to illness or accident (58.3%). Female sex, younger age, and Asian American race were associated with increased odds of financial worry (P < 0.05 for all). Of 13,218 participants with complete responses to K6 questions, 701 (5.3%) met the threshold for severe psychological distress. Participants endorsing financial worry were more likely to have psychological distress (6.6 vs. 1.2%, AOR 2.89, 95% CI 2.03-4.13, P< 0.001) with each additional worry conferring 23.9% increased likelihood of psychological distress.

CONCLUSIONS

A majority of cancer survivors reported financial worry, which was associated with greater odds of reporting psychological distress. Policies and guidelines are needed to identify and mitigate financial worries and psychologic distress among patients with cancer, with the goal of improving psychological well-being and overall cancer survivorship care.

Factors Influencing Mammography Uptake Following a Screening Intervention among Asian American Women: A Systematic Review

Asian American women, both immigrant and US-born, are known to have low mammography screening rates. To reduce health disparities and address community health needs, we undertook a systematic review to identify factors that affect mammography uptake among Asian American women following a mammography screening intervention. Following the PRISMA guidelines, we searched four databases and selected 12 studies that met our inclusion criteria. We identified 22 relevant factors and developed a new conceptual model that comprehensively captures these sociodemographic; cultural; knowledge, attitude, and perception; health history; health care accessibility and availability; and intervention factors, including components and mode of intervention. This conceptual model can be used to guide development of interventions that effectively promote mammography screening. Future research should focus on the effect of acculturation on screening behaviors and the importance of culturally tailored intervention and information-sharing elements to improving mammography screening among Asian Americans.

Breast Cancer Incidence Trends by Estrogen Receptor Status Among Asian American Ethnic Groups, 1990-2014

BACKGROUND

Westernization and etiologic heterogeneity may play a role in the rising breast cancer incidence in Asian American (AA) women. We report breast cancer incidence in Asian-origin populations.

METHODS

Using a specialized Surveillance, Epidemiology, and End Results-9 Plus API Database (1990-2014), we analyzed breast cancer incidence overall, by estrogen receptor (ER) status, and age group among non-Hispanic white (NHW) and AA women. We used age-period-cohort models to assess time trends and quantify heterogeneity by ER status, race and ethnicity, and age.

RESULTS

Overall, breast cancer incidence increased for most AA ethnicities (Filipina: estimated annual percentage change [EAPC] = 0.96%/year, 95% confidence interval [CI] = 0.61% to 1.32%; South Asian: EAPC = 1.68%/year, 95% CI = 0.24% to 3.13%; Chinese: EAPC = 0.65%/year, 95% CI = 0.03% to 1.27%; Korean: EAPC = 2.55%/year, 95% CI = 0.13% to 5.02%; and Vietnamese women: EAPC = 0.88%/year, 95% CI = 0.37% to 1.38%); rates did not change for NHW (EAPC = -0.2%/year, 95% CI = -0.73% to 0.33%) or Japanese women (EAPC = 0.22%/year, 95% CI = -1.26% to 1.72%). For most AA ethnicities, ER-positive rates statistically significantly increased, whereas ER-negative rates statistically significantly decreased. Among older women, ER-positive rates were stable for NHW and Japanese women. ER-negative rates decreased fastest in NHW and Japanese women among both age groups.

CONCLUSIONS

Increasing ER-positive incidence is driving an increase overall for most AA women despite declining ER-negative incidence. The similar trends in NHW and Japanese women (vs other AA ethnic groups) highlight the need to better understand the influences of westernization and other etiologic factors on breast cancer incidence patterns in AA women. Heterogeneous trends among AA ethnicities underscore the importance of disaggregating AA data and studying how breast cancer differentially affects the growing populations of diverse AA ethnic groups.

Determinants of breast self-examination practice among women in Surabaya, Indonesia: an application of the health belief model

Background

Breast cancer has become one of the most common causes of mortality among Indonesian women. Many women in Indonesia present with late-stage breast cancer, negatively affecting prognosis and treatment outcomes. Better prognosis of breast cancer will be achieved if it is diagnosed in an earlier stage, thus efforts to detect breast cancer earlier are important. Breast Self-Examination (BSE) is considered as an important first step to encourage women to actively be responsible for their own health, especially for women in low-and middle-income countries with limited resources and access to other forms of preventive healthcare (e.g., screening programs). The present study aimed to predict BSE practice among women in Surabaya, Indonesia using the Health Belief Model (HBM).

Methods

This investigation was a cross-sectional survey which was distributed among 1967 women aged 20–60 years. The Indonesian version of Champion’s Health Belief Model Scale (I-CHBMS) was used to explain self-reported BSE practice. Logistic regression analysis was used to examine the association of HBM variables with BSE practice.

Results

44.4% of the respondents indicated they had performed BSE. Further, the results indicated that the HBM variables were significantly associated with BSE practice. Specifically, higher perceived benefits and self-efficacy, lower perceived barriers and less cues to action were unique correlates of BSE practice. The result also showed that perceived severity and susceptibility were not associated with BSE practice.

Conclusion

This study indicated that several HBM constructs significantly associated with BSE practice among Indonesian women, suggesting that BSE health education programs should emphasize the perceived benefits of BSE, focus on increasing women’s self-efficacy to address and overcome perceived barriers in performing BSE, and help them in identifying personally relevant cues to action.

Barriers to Breast Cancer Screening and Coping Strategies in Korean American Women

Introduction: To develop more culturally appropriate and effective intervention strategies, this qualitative study explored Korean American women's barriers to mammography and their coping strategies within their sociocultural context. Methodology: Semistructured individual interviews were conducted with 30 Korean American women in 2016. Thematic analysis was used to analyze the data and identify themes. Results: Four themes and their associated subthemes emerged from the data: (1) barriers to accessing mammography (cost, time consuming and complicated procedure, and language barriers), (2) psychosocial concerns related to mammography (pain, discomfort and embarrassment, and exposure to radiation), (3) strategies to access mammography (identifying ways to get a cost-free mammogram and having procedure done in home country), and (4) ways to deal with psychosocial concerns (being positive and avoiding or postponing the procedures). Discussion: Health professionals should account for cultural differences including, but not limited to, patients' concerns, access to care, and beliefs surrounding screening processes.

Factors associated with breast cancer screening participation among women in mainland China: a systematic review

OBJECTIVES

Although detecting breast cancer at an early stage through screening has been clearly shown to be an effective strategy, the screening participation rate in China remains low. This systematic review sought to synthesise the current evidence to identify factors associated with breast cancer screening participation among women in mainland China.

DESIGN

This study was a systematic review.

DATA SOURCES

Studies were collected from PubMed, PsycINFO, CINAHL, EMBASE and three major Chinese databases, specially China National Knowledge Infrastructure, Chongqing VIP and Wanfang Data.

ELIGIBILITY CRITERIA

All included papers were original research studies with a longitudinal or cross-sectional study design that considered associated factors of breast cancer screening participation among women in mainland China.

DATA EXTRACTION AND SYNTHESIS

Study selection, data extraction and quality assessment were conducted independently by two reviewers, involving a third to help reach a consensus when necessary. Primary outcomes of interest included factors associated with breast cancer screening participation.

RESULTS

A total of 19 studies were included in this review. Based on these studies, geographical region, a personal history of breast disease, past screening behaviours for breast disease, physical examination and the availability of medical specialists/equipment for breast examination were consistently associated with participation in breast cancer screening, while residential area, ethnicity and attitude towards breast cancer screening appeared to be associated with participation in breast cancer screening. There were additionally some factors with even more limited evidence with which to ascertain their association with screening participation.

CONCLUSIONS

There exists a wide range of factors that influence breast cancer screening participation in mainland China. These findings could help to inform future research and policy efforts.

Analyzing Factors of Breast Cancer Screening Adherence among Korean American Women Using Andersen's Behavioral Model of Healthcare Services Utilization

Objectives

Regular uptake of mammography screening reduces the risk of advanced stage diagnosis of breast cancer (BC). However, BC screening rates remain suboptimal among Korean American (KA) women. Using the Andersen's Behavioral Model of Healthcare Services Utilization, this study examined factors associated with mammography screening among KA women aged 50 to 80 years in the state of Georgia, USA.

Methods

We used purposive sampling to recruit study participants in the Atlanta metropolitan area from May 2015 to February 2016. A total of 303 KA women completed a cross-sectional, self-report survey about their sociodemographics, health care access information, knowledge, self-efficacy, decisional balance, and mammography history.

Results

Descriptive analyses confirmed low rates of mammography screening in the participants. Multiple logistic regression analyses showed that having a mammogram within the past year was associated with greater BC knowledge, higher scores of decisional balance and fewer annual health check-ups among KA women without any cancer history.

Conclusions

The findings offer implications for health policy aimed at increasing BC screening by leveraging enabling factors among medically underserved KA women at both structural and cultural levels.

Interventions for Cardiovascular Disease Risk Reduction in Korean Americans: A Systematic Review

This systematic review was to identify and synthesize literature that described the cultural appropriateness and effectiveness of interventions aimed at cardiovascular risk reduction in Korean Americans. We searched multiple electronic databases for studies published between January 2000 and August 2017 and identified 14 eligible research reports. All reviewed studies targeted first-generation Korean American adults. Most of the reviewed studies incorporated components of surface structure, and leveraged deep structure in those interventions. Significant changes in cardiovascular health outcomes were reported in most of the reviewed studies; however, the role of cultural factors in the outcomes was rarely evaluated, and few reported long-term effects. Future research needs to consider long-term effects. Deploying cultural factors and evaluating their contributions to the target outcomes will enhance the research on cardiovascular health disparities.