Development of the information quality scale for health information supply chain type 2 diabetes mellitus management using exploratory factor analysis.

Background: Research on the quality scale of the healthcare supply chain is still limited. This study aimed to assess the information quality of the supply chain model with a focus on construct validity. Studies related to information quality measurement generally focus on measuring the dimensions of the completeness of medical records and consumer perspectives. We intended to assess the scale based on doctors needed as care coordinators on type 2 diabetes mellitus or the Non-Insulin-Dependent-Diabetes-Mellitus (NIDDM) program in primary healthcare. Methods: Sixty-four primary healthcare doctors with an age range of 24-51 years were involved in this research. The scale obtained was formed from the assessment of the point of view of a panel of experts through the content validity index (CVI). The exploratory factor analysis (EFA) method was used to explore the scale of information quality in the information supply chain model for the NIDDM chronic disease management program. Result: The data analysis results indicated three main factors that affected the quality of the information supply chain model of NIDDM, namely accessibility, safety, and efficiency of information related to NIDDM. The results of the validity and reliability of the data showed that the scale used in this research was valid and reliable with a Cronbach alpha coefficient of 0.861. Conclusion: The scale developed in this research could be used to explore the quality of the information supply chain of NIDDM management in primary healthcare. Each item on the scale could explain the variables according to their respective groups.

FITRI's four steps in developing primary health cares' interprofessional collaborative: an intervention for fostering IPCP competencies.

It is important to fill the gaps in collaborative practice due to the lack of the healthcare professionals' ability to work in collaboration with other disciplines. However, the current team training does not routinely address this important issue. This study aimed to identify how interactive interprofessional collaborative practice (IPCP) learning materials in a virtual course and community implementation called FITRI's four steps in developing primary health cares' interprofessional collaborative practice can be used in primary healthcare settings to address IPCP competencies of healthcare providers. This research was a quasi-experimental study with an untreated control group design using a dependent pretest and posttest sample. A purposive sample of 50 primary healthcare providers consisting of general physicians, dentists, nurses, dietitians, and pharmacists were nonrandomly divided into the control and intervention groups. This study showed that IPCP competencies measured by the Interprofessional Collaborator Assessment Rubric (ICAR) in the intervention group were significantly higher after the training and implementation than before. The Mann-Whitney tests indicated that IPCP competencies were better in the intervention group than the control group. Based on effect size analysis, the intervention had a very strong impact and could significantly improve the participants' competencies, especially in the collaborative patient/client-family centered approach domain. The FITRI's four steps in developing primary health cares' interprofessional collaborative practice can be implemented and provide positive impacts in primary healthcare settings to improve and foster competencies of IPCP in primary healthcare.

How do elderly people with malnutrition and their families perceive collaborative practice in primary care? A phenomenological study.

As a frequent and serious problem in elderly people, malnutrition is a complex health issue. It requires comprehensive care through interprofessional collaborative practice (IPCP) engaging five health professionals in primary care consisting of a physician, dentist, nurse, dietitian and pharmacist. In Indonesia, the usual care involves monthly health screening in community programmes named Posyandu. The current study aimed to explore perceptions of elderly people with malnutrition and their families' experiences with interprofessional teams compared with usual care in primary care. This qualitative study used the phenomenological approach based on Creswell. Interviews were conducted with fourteen elderly people and their families in the intervention group and fourteen elderly people with their families in the control group. Data were analysed using the four steps of descriptive qualitative analysis described by Giorgi, including comparing the experiences of both groups. Elderly people with malnutrition in the intervention group had more valued experiences regarding two-way communication with the IPCP team and felt it involved more comprehensive care for malnutrition management. Participants in the control group experienced communication between the health care providers and elderly people; however, it was not clear enough. There were overlapping roles among health care providers in the usual care. However, both groups shared the experience that family members are partners in nutritional management. Elderly people and their families in the intervention group have more valuable experiences related to two-way communication and comprehensive care. Family as partners was experienced in both the intervention and control groups.

Risk Assessment on the Release of Wolbachia-Infected Aedes aegypti in Yogyakarta, Indonesia.

Wolbachia-infected Aedes aegypti is the latest technology that was developed to eliminate dengue fever. The Ministry of Research and Technology of the Republic of Indonesia (Kemenristekdikti) established an expert group to identify future potential risks that may occur over a period of 30 years associated with the release of Wolbachia-infected Ae. aegypti. The risk assessment consisted of identifying different hazards that may have impacts on humans and the environment. From the consensus among the experts, there were 56 hazards identified and categorized into 4 components, namely, ecological matters, efficacy in mosquito management, economic and sociocultural issues, and public health standards. There were 19 hazards in the ecological group. The overall likelihood in the ecology of the mosquito is very low (0.05), with moderate consequence (0.74), which resulted in negligible risk. For the efficacy in mosquito management group, there were 12 hazards that resulted in very low likelihood (0.11) with high consequence (0.85). The overall risk for mosquito management efficacy was very low (0.09). There were 14 hazards identified in the public health standard with very low likelihood (0.07), moderate consequence (0.50) and negligible risk (0.04). Lastly, 13 hazards were identified in the economic and sociocultural group with low likelihood (0.01) but of moderate consequence (0.5), which resulted in a very low risk (0.09). The risk severity level of the four components leading to the endpoint risk of "cause more harm" due to releasing Wolbachia-infected Ae. aegypti is negligible (0.01).

Effectiveness of collaboration in older adults: do interprofessional teams improve nutritional status more compared to usual care?

BACKGROUND: Ageing is accompanied by many changes that make it more difficult for nutritional needs to be met. Management of malnutrition in older adults requires collaboration among multiple clinical disciplines. OBJECTIVE: This study aimed to determine the effectiveness of interprofessional collaboration and practice (IPCP) implementation for older adults with malnutrition compared to usual care. METHODS: This was a quasi-experimental study using an untreated control group design with dependent pretest and posttest sample of older adults with malnutrition. The intervention group worked as a team to give the intervention based on their own roles and responsibilities. The older adults of the control group received usual care from primary health care. Outcome measurement of nutritional status used the Mini Nutritional Assessment (MNA). RESULTS: The study results show significant differences between before and after IPCP implementation in the intervention group which had better scores of MNA after implementation. In the control group, there was no significant difference between before and after implementation of usual care. The statistical analysis showed there was a significant difference between the control and intervention groups who had improved nutritional status after IPCP implementation. IPCP had strong correlation with nutritional status based on correlation analysis. These results demonstrate that the collaboration by more than one health profession can improve nutritional status better than usual daily care. CONCLUSION: IPCP has a strong and significant correlation with the nutritional status in older adults. The IPCP implementation could significantly improve their nutritional status after the IPCP implementation compared to usual care.

Malnutrition in older adults: how interprofessional teams see it? A systematic review of the qualitative research.

BACKGROUND: The understanding of health care providers' experiences involved in malnutrition treatment is a key component that should be explored. OBJECTIVE: This systematic review aimed to explore the views and perceptions of community health care providers related to malnutrition and its management for older adults, through synthesizing the qualitative studies. METHODS: Six electronic databases were used to search relevant articles. Qualitative research synthesis using Sandelowski and Barroso's method and thematic synthesis were used to broaden the range of methodology in this study. Joanna Briggs Institute (JBI) Critical Appraisal Tools for Qualitative Research was used to enable judgement about the strength of qualitative research. RESULTS: A total of four qualitative studies of health care providers' views and perceptions related to malnutrition in older adults were analysed. The results showed that there are three main themes that reflect their malnutrition experiences: (i) knowledge and skills about malnutrition, (ii) management of malnutrition and (iii) the need for collaborative teams. CONCLUSION: While health care professionals understand about the aetiology of malnutrition, however screening for malnutrition is not routine in their practice. Proper education and training about nutritional care is needed. Dietary changes and public education are preferable over oral nutritional supplements. Some solution and recommendations for management of malnutrition in older adult such as supportive interventions include environmental changes, nutritional counselling, food modification, oral nutrition supplement and pharmacotherapy if needed, routine screening and multidisciplinary approach.

Survey data of multidrug-resistant tuberculosis, Tuberculosis patients characteristics and stress resilience during COVID-19 pandemic in West Sumatera Province, Indonesia.

This set of data presents a survey data describing multidrug-resistant tuberculosis, tuberculosis patients characteristics and stress resilience during COVID-19 pandemic in West Sumatera Province, Indonesia. The data were gathered from multidrug-resistant tuberculosis, tuberculosis patients through a survey distributed by an online questionnaire, assesing patients characteristics (age, sex, level of education, working status, history of close contact to patients with multidrug resistant tuberculosis and tuberculosis, smoking, alcohol consumption, cavitary pulmonary, diabetes mellitus, nutritional status and tuberculosis outside the lung) and stress resilience (3 items), from 15th July until 7th August 2020. The samples were collected 73 multidrug resistant tuberculosis patients and 219 tuberculosis patients in West Sumatera Province, Indonesia who were willing to fill an online questionnaire. SPSS version 23.0 was used to analyzed the data by descriptive and inferential statistics. The data will help to identify mental health problems and potentially as a warning sign that can support for health education interventions among multidrug-resistant tuberculosis and tuberculosis patients during COVID-19 pandemic.

Survey data of COVID-19 awareness, knowledge, preparedness and related behaviors among breast cancer patients in Indonesia.

This dataset presents a survey data describing COVID-19 awareness, knowledge, preparedness and related behaviors among breast cancer patients in Indonesia. The data were collected from breast cancer patients through a survey distributed by an online questionnaire, assesing social-demographic characteristics (6 items), COVID-19 awareness (5 items), knowledge (2 items), preparedness (2 items) and related behaviors (2 items), from 20th June until 14th July 2020. The samples were gathered 500 breast cancer patients in Indonesia who were willing to fill an online questionnaire. SPSS version 23.0 was used to analyzed the data by descriptive and inferential statistics and SmartPLS 3 to created the partial least square path modeling. The data will help in preventing the transmission of COVID-19 among breast cancer patients and can support for health education and promotion interventions.

Cryptosporidium Infection Increases the Risk for Chronic Diarrhea Among People Living With HIV in Southeast Asia: A Systematic Review and Meta-Analysis.

We conducted a systematic review research and meta-analysis to reveal the relationship between the risk of chronic diarrhea and Cryptosporidium infection in people living with HIV in Southeast Asia. We performed online peer-reviewed literature research from January 2005 to December 2017, which included PubMed, Science Direct, ProQuest, EBSCO, Cochrane, and Web of Science databases. Calculation of size effects in the meta-analysis was performed by STATA 13.0 software to estimate relative risks (RRs) with 95% confidence intervals (CIs) for any associations. Seven cross-sectional research articles were recruited in this study based on the inclusion and exclusion criteria. Our analysis revealed a significant relationship between cryptosporidiosis and the risk of chronic diarrhea in people living with HIV, with RR = 1.325; 95% CI = 1.157 to 1.517; and P < .000. Our results suggested that cryptosporidiosis increases the risk of chronic diarrhea, and low CD4+ lymphocyte cell counts aggravate the degree of diarrhea. Therefore, clinicians should be more aware in treating HIV-positive people, especially those with low CD4+ cell counts, and we suggest that Cryptosporidium laboratory examinations be conducted immediately.

Efficacy of Artemisinin Base Combination Therapy and Genetic Diversity of Plasmodium falciparum from Uncomplicated Malaria Falciparum Patient in District of Pesawaran, Province of Lampung, Indonesia.

BACKGROUND: Malaria is an infectious disease caused by Plasmodium sp., that still prevalence in some part of Indonesia. District of Pesawaran is one of malaria endemic area in the Province of Lampung. The purpose of this study was to evaluate the efficacy of the ACT treatment in the District of Pesawaran Province of Lampung, Indonesia from Dec 2012 to Jul 2013 and the genetic variation of the Plasmodium falciparum also studied. METHODS: This study was observational analytic study of falciparum malaria patients treated with ACT and primaquine (DHP-PQ and AAQ-PQ) at Hanura Primary Health Centre (Puskesmas). DNA isolation was done with QIAmp DNA Mini Kit. Amplification of PfMDR1, MSP1, and MSP2 genes was done with appropriate forward and reverse primer and procedures optimized first. PCR Product of PfMDR1 gene was prepared for sequencing. Data analysis was done with MEGA 6 software. RESULTS: The results of this research are DHP-PQ effectiveness was still wellness among falciparum malaria patients in District of Pesawaran, Province of Lampung, Indonesia. There is Single-nucleotide mutation of N86Y of PfMDR1 gene. The dominant alleles found are MAD20 and 3D7 alleles with Multiplicity of Infection (MOI) are low. CONCLUSION: Therapy of DHP-PQ as an antimalarial falciparum in Pesawaran District, Lampung, Indonesia is still good. The genetic variation found was the SNP on the N86Y PfMDR1 gene, with dominant allele MAD20 and 3D7.

Neurofibromatosis type 2 gene mutation and progesterone receptor messenger RNA expression in the pathogenesis of sporadic orbitocranial meningioma.

AIM: To investigate neurofibromatosis type 2 (NF2) gene mutation at mRNA levels in sporadic orbitocranial meningioma and its association with progesterone receptor (PR) mRNA expression. METHODS: This was a case-control study. Thirty-four sporadic meningioma patients with no familial NF2-related meningioma history were recruited. They were interviewed for their obstetric, gynecologic, and contraception history. PR investigation was performed with real-time polymerase chain reaction (PCR). NF2 mutation was investigated using Qbiomarker Somatic Mutation PCR Assay at NF2 mRNA level after its cDNA extraction (four mRNA mutation cytoband coordinates for nucleotide change: c.634C>T/p.Q212, c.655G>A/p.V219M, c.784C>T/p.R262 and c.1228C>T/p. Q410). RESULTS: After mutation analysis at mRNA level, NF2 gene mutation was found in 35.29% patients. Non-mutation group was strongly associated with exogenous hormonal exposure (non-mutation vs mutation: 95.5% vs 83.3%, P<0.001). PR mRNA was found significantly lower in non-mutation group (P=0.033) which presumed as long term exogenous progesterone exposure. However, mutation group was associated with higher rate of progression to grade II (mutation vs non-mutation, 18.2% vs 5%, P<0.001) and was associated more in fibrous and anaplastic tumor tissue. CONCLUSION: NF2 mutation-meningioma is associated with higher grade of meningioma. Non NF2 mutation-meningioma is strongly associated with exogenous progesterone exposure and lower PR expression.

Spatiotemporal patterns of malaria at cross-boundaries area in Menoreh Hills, Java, Indonesia.

BACKGROUND: Comprehensive reports of malaria in Menoreh Hills, Central Java, Indonesia, a unique district cross-boundaries area under three districts and two provinces have been published previously. However, no study was performed to identify the hotspots of malaria in this cross-boundaries area, Kaligesing and Bagelen Subdistricts in Purworejo, Jawa Tengah Province and Kokap Subdistrict in Kulon Progo, Yogyakarta Province, using a longitudinal spatial data. METHODS: Monthly reports of malaria cases at primary health centres during 2005-2015 were collected and processed with ArcGIS and SaTScan to identify the malaria distribution at the village level. Malaria distribution was analysed using global spatial autocorrelation (Moran index) in ArcGIS. Cluster analysis was conducted using SaTScan purely spatial clustering and purely temporal clustering. Cluster characteristics resulted from three different approach were compared and analysed. RESULTS: During the last 11 years, 3812 malaria cases were reported and the number of high case incidence (HCI) villages were increased continuously. Malaria spatial distribution in Menoreh Hills was clustered spatially. Using three different approaches of time period ranges, consistent conclusion was found i.e. most likely clusters always occurred in the Purworejo district while the secondary clusters appeared later in the cross-boundaries districts. CONCLUSION: Spatiotemporal analysis of an 11 years surveillance data showed that hotspots of malaria cases in Menoreh Hills were continuously located in Purworejo district. The success of malaria elimination in the cross boundaries area of Menoreh Hills might be depended on the success in malaria case management and surveillance in this hotspot area.

The Indonesian general practitioners' perspectives on formal postgraduate training in primary care.

BACKGROUND: To be recognized as a primary care physician (PCP), an Indonesian general practitioner (GP) has to follow a formal postgraduate training in primary care. However, 4 years since the regulation was published, the progress of the training is slow. There is a need to deeply investigate the doctors' perspectives, particularly to explore factors associated with their willingness to follow this training. AIM: This study aims to explore the GPs' views and perspectives related to the formal postgraduate training in primary care that may influence their enrolment in PCP program. METHODS: We conducted semi-structured interviews with a topic guide. The study took place in Yogyakarta from January to December 2016. The participants were GPs practicing in Yogyakarta primary care clinics who were recruited using purposive-maximum variation sample design. The interviews were audio-recorded and transcribed. The data were analysed using interpretative phenomenological analysis approach. RESULTS: Nineteen GPs participants were involved in this study. Three major themes were identified, namely unfamiliarity, resistance, and positivism. Almost all the GP participants were unfamiliar with the primary care training program. They were also pessimistic if the training could change the health service in the country while it lacked resources and infrastructures. However, exposure to the training brought positive insights that it could improve the doctors' knowledge and skills in primary care practice. DISCUSSION: The government intention to establish PCP training is currently on the right tract. However, information dissemination and more supports in primary care are also essential.

Biopsychosocial model of illnesses in primary care: A hermeneutic literature review.

Biopsychosocial model is a useful worldview for primary care or family doctors. However, it is often considered as impractical or too complicated. The objective of this study is to review the implementation of the biopsychosocial model in clinical practice, and its contributions to clinical outcomes. Hermeneutic circle literature review was conducted to provide experiential learning in an attempt to understand biopscyhosocial model, first developed by George Engel. Literature search started with review articles in Medline and Scopus as search engines. Citations from previous articles, editorials, and research articles were identified and interpreted in the context of the knowledge derived from all identified relevant articles. The progress of biopsychosocial model has been slow, and primary care doctors do not implement biopsychosocial medicine in their practice, while biomedical thinking and approach are still the dominant model. Biopsychosocial research addressed chronic illnesses and functional disorders as conditions in need for biopsychosocial model implementation. As payment scheme, clinical guidelines and clinical performance indicators are biomedically oriented, there is no incentive for primary care doctors to adopt biopsychosocial model in their practice. Workload and lack of competence in primary care may hinder the implementation of biopsychosocial model. Biopsychosocial model helps primary care doctors to understand interactions among biological and psychosocial components of illnesses to improve the dyadic relationship between clinicians and their patients and multidisciplinary approaches in patient care. Biopsychosocial model potentially improves clinical outcomes for chronic diseases and functional illnesses seen in primary care.

Preparatory graduate professional training in general practice by using the 'experiential learning' framework.

BACKGROUND: General practitioners (GPs) in Indonesia are medical doctors without formal graduate professional training. Only recently, graduate general practice (GP) is being introduced to Indonesia. Therefore, it is important to provide a framework to prepare a residency training in general practice part of which is to equip GP graduate doctors to deliver person-centered, comprehensive care in general practice. Experiential learning theory is often used to design workplace-based learning in medical education. The aim of this study was to evaluate a graduate professional training program in general practice based on the 'experiential learning' framework. METHODS: This was a pre-posttest study. The participants were 159 GPs who have been practicing for a minimum of 5 years, without formal graduate professional training, from two urban cities of Indonesia (Yogyakarta and Jakarta). A 40-week curriculum called the 'weekly clinical updates on primary care medicine' (WCU) was designed, where GPs met with clinical consultants weekly in a class. The participant's knowledge was assessed with pre-posttests involving 100 written clinical cases in line with each topic in the curriculum. Learning continued with a series of group discussions to gain reflection to reinforce learning. RESULTS: Participants' knowledge regarding clinical problems in general practice was moderately increased (p < 0.05) after the training from a mean score of 50.64-72.77 (Yogyakarta's doctors) and 39.37-51.81 (Jakarta's doctors). Participants were able to reflect on the principles of general practice patient-care. Participants reported satisfaction during the course, and expressed a desire for a formal residency training. CONCLUSIONS: A graduate educational framework for GP based on the 'experiential learning' framework in this study could be used to prepare a graduate GP training; it is effective at increasing the comprehension of general practitioners towards better primary care practice.

A Time Series Analysis: Weather Factors, Human Migration and Malaria Cases in Endemic Area of Purworejo, Indonesia, 2005-2014.

BACKGROUND: Climatic and weather factors become important determinants of vector-borne diseases transmission like malaria. This study aimed to prove relationships between weather factors with considering human migration and previous case findings and malaria cases in endemic areas in Purworejo during 2005-2014. METHODS: This study employed ecological time series analysis by using monthly data. The independent variables were the maximum temperature, minimum temperature, maximum humidity, minimum humidity, precipitation, human migration, and previous malaria cases, while the dependent variable was positive malaria cases. Three models of count data regression analysis i.e. Poisson model, quasi-Poisson model, and negative binomial model were applied to measure the relationship. The least Akaike Information Criteria (AIC) value was also performed to find the best model. Negative binomial regression analysis was considered as the best model. RESULTS: The model showed that humidity (lag 2), precipitation (lag 3), precipitation (lag 12), migration (lag1) and previous malaria cases (lag 12) had a significant relationship with malaria cases. CONCLUSION: Weather, migration and previous malaria cases factors need to be considered as prominent indicators for the increase of malaria case projection.

Relationships Between Neurofibromatosis-2, Progesterone Receptor Expression, the Use of Exogenous Progesterone, and Risk of Orbitocranial Meningioma in Females.

Background: The pathogenesis of meningioma in females and its association with exogenous progesterone is remained unclear. This study was aimed to examine expression of Progesterone receptor (PR) and Neurofibromatosis-2 (NF2) and assess their relationships to history of exogenous progesterone use and risk of meningioma. Methods: Our study was a case-control study that involves 115 females, 40 cases who diagnosed with orbito-cranial meningioma and 75 controls of healthy, that has been presented in previous study. The demographic characteristics, reproductive factors, and history of progesterone use were obtained in-depth face-to-face interviews. PR and NF2 mRNA were assessed by real-time quantitative polymerase chain reaction (RT-qPCR) on serum specimens. Results: The mean age of participants in cases vs. controls were 46.6 ± 6.2 vs. 46.5 ± 7.45 (P = 0.969). The expression of PR and NF2 in cases was significantly lower than in controls. The longer duration of progesterone exposure was significantly associated with lower expression of PR and NF2. Significant association between lower expression of PR (OR 11.7; 95% CI 4.17-32.9; P < 0.001 comparing the lowest quartile vs. 3 highest quartile of PR) and NF2 (OR 4.23; 95% CI 1.85-9.67; P = 0.001 comparing the 2 lowest quartiles vs. 2 highest quartiles) with increased risk of meningioma were also reported. Conclusion: In this study we showed that the longer the exposure to exogenous progesterone, the lower the expression of PR and NF2 mRNA in the serum. Low expression of PR and NF2 were associated with higher risk of meningioma, suggesting that low PR expression and inactivation of NF2 might play a key role in progesterone-associated meningioma tumorigenesis and may be potential clinical marker for females at higher risk of meningioma.

How is Indonesia coping with its epidemic of chronic noncommunicable diseases? A systematic review with meta-analysis.

BACKGROUND: Chronic noncommunicable diseases (NCDs) have emerged as a huge global health problem in low- and middle-income countries. The magnitude of the rise of NCDs is particularly visible in Southeast Asia where limited resources have been used to address this rising epidemic, as in the case of Indonesia. Robust evidence to measure growing NCD-related burdens at national and local levels and to aid national discussion on social determinants of health and intra-country inequalities is needed. The aim of this review is (i) to illustrate the burden of risk factors, morbidity, disability, and mortality related to NCDs; (ii) to identify existing policy and community interventions, including disease prevention and management strategies; and (iii) to investigate how and why an inequitable distribution of this burden can be explained in terms of the social determinants of health. METHODS: Our review followed the PRISMA guidelines for identifying, screening, and checking the eligibility and quality of relevant literature. We systematically searched electronic databases and gray literature for English- and Indonesian-language studies published between Jan 1, 2000 and October 1, 2015. We synthesized included studies in the form of a narrative synthesis and where possible meta-analyzed their data. RESULTS: On the basis of deductive qualitative content analysis, 130 included citations were grouped into seven topic areas: risk factors; morbidity; disability; mortality; disease management; interventions and prevention; and social determinants of health. A quantitative synthesis meta-analyzed a subset of studies related to the risk factors smoking, obesity, and hypertension. CONCLUSIONS: Our findings echo the urgent need to expand routine risk factor surveillance and outcome monitoring and to integrate these into one national health information system. There is a stringent necessity to reorient and enhance health system responses to offer effective, realistic, and affordable ways to prevent and control NCDs through cost-effective interventions and a more structured approach to the delivery of high-quality primary care and equitable prevention and treatment strategies. Research on social determinants of health and policy-relevant research need to be expanded and strengthened to the extent that a reduction of the total NCD burden and inequalities therein should be treated as related and mutually reinforcing priorities.

Interpretation of Clinical Data Based on C4.5 Algorithm for the Diagnosis of Coronary Heart Disease.

OBJECTIVES: The interpretation of clinical data for the diagnosis of coronary heart disease can be done using algorithms in data mining. Most clinical data interpretation systems for diagnosis developed using data mining algorithms with a black-box approach cannot recognize examination attribute relationships with the incidence of coronary heart disease. METHODS: This study proposes a system to interpretation clinical examination results for the diagnosis of coronary heart disease based the decision tree algorithm. This system comprises several stages. First, oversampling is carried out by a combination of the synthetic minority oversampling technique (SMOTE), feature selection, and the C4.5 classification algorithm. System testing is done using k-fold cross-validation. The performance parameters are sensitivity, specificity, positive prediction value (PPV), negative prediction value (NPV) and the area under the curve (AUC). RESULTS: The results showed that the performance of the system has a sensitivity of 74.7%, a specificity of 93.7%, a PPV of 74.2%, an NPV of 93.7%, and an AUC of 84.2%. CONCLUSIONS: This study demonstrated that, by using C4.5 algorithms, data can be interpreted in the form of a decision tree, to aid the understanding of the clinician. In addition, the proposed system can provide better performance by category.