1.An Epidemiologic Study on the Nosocomial Bloodstream Infection in Two Hospitals.
Mi Jeung AHN ; Chang Kyu LEE ; Chae Seung LIM ; You Cheol SHIN ; Soon Duck KIM
Korean Journal of Epidemiology 2001;23(2):33-43
PURPOSE: In this study, nosocomial bloodstream infection rate and fatality rate for 774 and 386 patients, who whose blood cultivation were obtained after 48 hours of hospitalization between March 1999 and February 2000 in two university hospitals, were sought. A distribution of etiologic agent and risk factors of the nosocoial bloodstream infection were also investigated. METHODS: This study was carried out through medical record review and a structural questionnaire. Besides registers of microbe cultivation in the department of clinical pathology and medical records of patients were checked. The nosocomial bloodstream infection was also checked through medical records of patients using the standard of CDC. Statistical analysis were performed using SAS 6.12. RESULTS: The nosocomial bloodstream infection rate in hospital K and hospital A were 3.9 and 3.5 per 1,000 discharged patients, respectively. Although the rates were increased accoding to patients' age, they were different by medical departments, showing the highest level in the ICU. The fatality rate from nosocomial bloodstream infection in hospital K and hospital A were 12.5% and 21.8%, respectively. A distribution of etiologic agent of the nosocomial bloodstream infection in hospital K was 17 cases(21.8%) of Coagulase negative staphylococcus(CNS), 12 cases(15.0%) of Staphylococcus aureus and 8 cases(10.0%) of Enterococcus spp. For hospital A, it was 14 cases925.4%) of Coagulase negative taphylococcus(CNS), 9 cases(16.4%) of Staphylococcus aureus and 7 cases(12.7%) of Klebsiella pneumoniae. While risk factors of the nosocomial bloodstream infection edentified in hospital K were ICU, intracranial injury and hospitalization period, those for hospital A were a use of the central nenous tube, intracranial injury and hospitalization period. CONCLUSION: It is expected that nosocomial bloodstream infection increases as aged group increases by the change of the population structure, as the usage of invasive instrument increases by development of new medical instrument as well as large scale hospitals. For these reasons, further studies developing countermeasures against nosocomial bloodstream infection are recommended.
Centers for Disease Control and Prevention (U.S.)
;
Coagulase
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Cross Infection
;
Enterococcus
;
Epidemiologic Studies*
;
Hospitalization
;
Hospitals, University
;
Humans
;
Klebsiella pneumoniae
;
Medical Records
;
Pathology, Clinical
;
Risk Factors
;
Staphylococcus aureus
;
Surveys and Questionnaires
2.Optimal Range of Triglyceride Values to Estimate Serum Low Density Lipoprotein Cholesterol Concentration in Korean Adults: the Korea National Health and Nutrition Examination Survey, 2009.
You Cheol HWANG ; Hong Yup AHN ; In Kyung JEONG ; Kyu Jeung AHN ; Ho Yeon CHUNG
Journal of Korean Medical Science 2012;27(12):1530-1535
The aims of this study were to investigate the validity of Friedewald's formula and to propose a range of triglyceride values over which the formula can be used without significant error. This was a cross-sectional analysis of 1,929 subjects (946 males and 983 females) aged 20 yr and older using data of the Korea National Health and Nutrition Examination Survey in 2009. Estimated total number was considered to be 10,633,655 (5,846,384 males and 4,787,271 females). Calculated and directly-measured low density lipoprotein cholesterol (LDL-C) values were highly correlated (r = 0.96); however, significant differences were observed between the directly-measured and calculated LDL-C concentrations. Subjects in the underestimated group (10.5%) had higher dysmetabolic profiles than those in the overestimated group (11.4%). Although serum triglyceride level showed the greatest independent association with differences between the calculated and directly-measured LDL-C concentrations, no statistically significant differences were noted when triglyceride concentration was between 36 and 298 mg/dL (93.2%). In conclusion, Friedewald's formula accurately estimates directly-measured serum LDL-C concentration in Korean adults. However, the formula can be applied to subjects with serum triglyceride concentrations from 36 to 298 mg/dL without significant error.
Adult
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Asian Continental Ancestry Group
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Body Mass Index
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Cholesterol, LDL/*blood/standards
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Cross-Sectional Studies
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Female
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Humans
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Hyperlipidemias/diagnosis
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Male
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Middle Aged
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Nutrition Surveys
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Reference Values
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Regression Analysis
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Republic of Korea
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Triglycerides/*blood/standards
3.Epidemiologic Study of Measles Outbreak in School-Aged Children in East KyongGi-Do Area.
In Kyu YI ; Jong Woon CHOI ; Soon Ki KIM ; Byong Kwan SON ; Jeung Gyu KIM ; Seong Ki YU ; Myung Cheol JO ; Il Suk JANG
Journal of the Korean Pediatric Society 1996;39(1):63-71
PURPOSE: There was marked decline of measles outbreak in the world since the first measles vaccine had been introduced. Recently, however, measles outbreak in the vaccinated children have been reported worldwide, which was ascribed to the possibilities of primary or secondary vaccine failure. We investigated the incidence in the school-aged children in the Kyong-gi Do area, the larger district which covers the urban and rural area, by the questionnaire. METHODS: The questionnaires which were asked to the students' parents of 14 elementary schools in and nearest Sungnam city, Kyong-Gi Do for their present age, experience of measles attack and vaccination, and the age of measles attack. The answers of this questionnaire were analysed by SAS computer program. RESULTS: 1) Measles vaccination rate at 9 months was 70.5% and MMR vaccination rate at 15 months was 91.3%. 2) Measles attack rate among unvaccinated group was 53.8%, and 16.1% in vaccinated group. There was significant low risk of measles attack among vaccinated group than unvaccinated group(relative risk=3.35, p<0.001). 3) Vaccine efficacy of measles in this age group was 69%. 4) Age distribution of measles outbreak reveals bimodal pattern, the graph shows two peak incidence of 1 year-old and 6 years-old. 5) There were no significant differences of measles incidence in the different medical care service center that measles vaccination had been done. CONCLUSIONS: Despite high rate of measles vaccine coverage in Sungnam, the attack rate of measles in the vaccinated population was relatively high. There may be due to primary, secondary vaccine failure or the other factors. The policy of measles vaccination in Korea should be reestablished as soon as possible.
Age Distribution
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Child*
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Epidemiologic Studies*
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Gyeonggi-do*
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Humans
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Incidence
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Korea
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Measles Vaccine
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Measles*
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Measles-Mumps-Rubella Vaccine
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Parents
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Surveys and Questionnaires
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Vaccination
4.On Study of the Standardization for Medical Information in Health IC Card.
Heung Sik PARK ; Seung Ghon NAM ; Jae Ouk AHN ; Hyeon Eui KIM ; Ju Han KIM ; Cheol Kyu JEUNG ; Tae Jin KIM ; Ki Han LEE
Journal of Korean Society of Medical Informatics 1998;4(2):157-164
Using IC cards with powerful information processing capabilities, high level of security, and multi media capabilities to create health IC cards has the following merits: comprehensive management of individual medical information, highly secure access to information that may be stored in separate location and/or institutes, increasing the compatability of difference used by various institutes. In this research ,we have categorized the information stored in the health IC card into the following main categories: basic personal information, emergency medical information, medical informatics, nursing information, welfare information. This was based on international ISO standards and specifics of Japan and south eastern Asia. These main categories are further divided into sub-categories and care was taken to ensure that the format of each sub-category is compatible with international standards while being suitable for Koran conditions of actual use. So, these categories conform to international standards and we will continue our efforts update the international standard to include additional categories needed in Korea and update the Korea standard to conform more closely with the international standards.
Academies and Institutes
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Access to Information
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Automatic Data Processing
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Emergencies
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Far East
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Humans
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Japan
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Korea
;
Medical Informatics
;
Nursing
5.A Method for the Application of Emergency Medical Information System in Health IC Card.
Heung Sik PARK ; Seung Ghon NAM ; Jae Ouk AHN ; Hyeon Eui KIM ; Ju Han KIM ; Cheol Kyu JEUNG ; Tae Jin KIM ; Ki Han LEE
Journal of Korean Society of Medical Informatics 1998;4(2):145-156
Recent developments in computer and communication technology were studied in relation to medical information network systems, using computers and IC cards, to solve problems in community health. Trial use of health IC card systems for personal health data management are already in existence in some countries. The health IC card system provides good quality information to the doctors, the hospital, the patients, and the insurance organizations. Emergency medical information card systems that take advantage of advanced information-related technologies such as computers and communication systems, in order to improve their emergency medical care systems may have many advantages. Emergency medical information card can provide a way to protect people during medical emergencies by providing physicians with their vital medical information during the critical seconds of emergency care if being unable to provide your vital medical information. Before introducing these systems, recognition that an important problems such as standardization of the data and code for the medical information systems, defining the access and usage rights by user profiles and the types of data for the security and data protection must be considered. We studied the emergency medical information card systems to clarify their purpose, analyse their present status, standardize the data and codes and define the access and usage rights and present the ideal system, in view of community health care requirements. Here the results of the research are examined, and there is a discussion of what is needed to use the emergency medical card system in the future.
Community Health Services
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Computer Security
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Emergencies*
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Emergency Medical Services
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Human Rights
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Humans
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Information Services
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Information Systems*
;
Insurance
6.Changes in Serum Osteocalcin are Not Associated with Changes in Glucose or Insulin for Osteoporotic Patients Treated with Bisphosphonate.
Seong Hun HONG ; Ja Won KOO ; Jin Kyung HWANG ; You Cheol HWANG ; In Kyung JEONG ; Kyu Jeung AHN ; Ho Yeon CHUNG ; Deog Yoon KIM
Journal of Bone Metabolism 2013;20(1):37-41
BACKGROUND: Bisphosphonate is used in osteoporosis treatment to repress osteoclast activity, which then decreases levels of osteocalcin (OC). OC, a protein secreted by osteoblasts and released from the bone matrix during osteoclastic bone resorption, has been found to control blood glucose levels by increasing insulin production and sensitivity. The question addressed in this study is whether decreasing OC through bisphosphonate treatment will provoke a change in glucose homeostasis. METHODS: Eighty-four patients with osteoporosis were treated with once-weekly risedronate 35 mg and cholecalciferol 5,600 IU. We measured fasting plasma glucose (FPG), insulin, and undercarboxylated (Glu) and carboxylated (Gla) OC levels at baseline and after 16 weeks. To estimate insulin resistance (IR) and beta-cell function (B)%, homeostasis model assessment (HOMA)-IR and HOMA-B% were also calculated, respectively. RESULTS: The mean FPG level in total subjects increased significantly from 5.3 to 5.5 mmol/L, but no changes in blood glucose were noted in the 24 subjects with impaired fasting glucose. Glu and Gla OC levels declined significantly after treatment. No correlations were observed between changes in OC and changes in glucose, however. CONCLUSIONS: Bisphosphonate treatment for osteoporosis reduced OC, but this change was not associated with changes in glucose metabolism.
Blood Glucose
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Bone Matrix
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Bone Resorption
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Cholecalciferol
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Etidronic Acid
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Fasting
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Glucose
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Homeostasis
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Humans
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Insulin
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Insulin Resistance
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Osteoblasts
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Osteocalcin
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Osteoclasts
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Osteoporosis
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Plasma
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Risedronate Sodium
7.A Case of Fulminant Type 1 Diabetes Mellitus with Human Leukocyte Antigen DR4-DQ4.
Ye Ri SO ; Ja Won KOO ; Young Hak CHO ; You Cheol HWANG ; Kyu Jeung AHN ; Ho Yeon CHUNG ; In Kyung JEONG
Endocrinology and Metabolism 2012;27(4):314-317
The clinical characteristics of fulminant type 1 diabetes are abrupt onset of disease, very short (<1 week) duration of diabetic symptoms, ketoacidosis at diagnosis, negativity for islet-related autoantibodies, virtually no C-peptide secretion (fasting plasma C-peptide <0.3 ng/mL), a near normal hemoglobin A1c (HbA1c) level and an elevated serum pancreatic enzyme level. The pathogenesis has not yet been clarified, however the involvement of both genetic background and viral infections has been suggested. We reported a case of fulminant type 1 diabetes. A 37-year-old woman was admitted with stuporous consciousness to our hospital. Four days prior to the admission, she was hospitalized with the diagnosis of acute pancreatitis in another hospital, and at that time her glucose level was 79 mg/dL. Three days after the hospitalization, her state of consciousness became stuporous and she was transferred to our hospital. The laboratory results were as follows: pH 6.94, glucose 1,602 mg/dL, and HbA1c 5.5%. She was negative for islet-related autoantibodies and viral antibodies. HLA haplotypes were DRB1*04:05/*04:06, DQB1*03:02/*04:01 which might be a considerable risk allele for fulminant type 1 diabetes. She was diagnosed with fulminant type 1 diabetes, and has been treated with multiple component insulin regimens.
Adult
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Alleles
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Antibodies, Viral
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Autoantibodies
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C-Peptide
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Consciousness
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Diabetes Mellitus, Type 1
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Female
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Glucose
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Haplotypes
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Hemoglobins
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HLA Antigens
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Hospitalization
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Humans
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Hydrogen-Ion Concentration
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Insulin
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Ketosis
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Leukocytes
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Pancreatitis
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Plasma
;
Stupor
8.Trends in the Prevalence of Obesity and Its Phenotypes Based on the Korea National Health and Nutrition Examination Survey from 2007 to 2017 in Korea
Sang Ouk CHIN ; You-Cheol HWANG ; Hong-Yup AHN ; Ji Eun JUN ; In-Kyung JEONG ; Kyu Jeung AHN ; Ho Yeon CHUNG
Diabetes & Metabolism Journal 2022;46(5):808-812
This study used data from the Korea National Health and Nutrition Examination Survey IV–VII from 2007 to identify the prevalence of obesity and its phenotypes (metabolically unhealthy obesity [MUO] and metabolically healthy obesity [MHO]) and their secular changes. The prevalence of obesity in Korea increased with significant secular changes observed (β=0.326, P trend <0.01) between 2007 and 2017, and especially in men (β=0.682, P trend <0.001) but not in women. The changes in the prevalence of obesity during the study period were different between men and women (P=0.001). The prevalence of MUO significantly increased only in men (β=0.565, P trend <0.01), while that of MHO increased only in women (β=0.179, P<0.05), especially in the younger age group (β=0.308, P<0.01).
9.The efficacy and safety of Dendropanax morbifera leaf extract on the metabolic syndrome: a 12-week, placebo controlled, double blind, and randomized controlled trial
Ji Eun JUN ; You-Cheol HWANG ; Kyu Jeung AHN ; Ho Yeon CHUNG ; Se Young CHOUNG ; In-Kyung JEONG
Nutrition Research and Practice 2022;16(1):60-73
BACKGROUND/OBJECTIVES:
The extract from Dendropanax morbifera exhibited diverse therapeutic potentials. We aimed to evaluate the efficacy and safety of D. morbifera leaf extract for improving metabolic parameters in human.
SUBJECTS/METHODS:
A 12-week, double blind, placebo-controlled and randomized trial included a total of 74 adults, and they were assigned to the placebo group (n = 38) or 700 mg/day of D. morbifera group (n = 36). The efficacy endpoints were changes in glycemic, lipid, obesity, and blood pressure (BP) parameters, in addition to the prevalence of metabolic syndrome (MetS) and the numbers of MetS components. Safety was assessed by monitoring adverse events (AEs).
RESULTS:
After 12 weeks of treatment, the hemoglobin A1c (HbA1c) level significantly decreased in the D. morbifera group compared to that of the placebo group (difference: −0.13 ± 0.20% vs. 0.00 ± 0.28%, P = 0.031; % of change: −2.27 ± 3.63% vs. 0.10 ± 5.10%, P = 0.025). The homeostatic model assessment for insulin resistance level also decreased significantly from its baseline in the D. morbifera group. The systolic BP of D. morbifera group decreased significantly than that of placebo group (difference: −3.9 ± 9.8 mmHg vs. 3.3 ± 11.7 mmHg, P = 0.005; % of change: −2.8 ± 7.7% vs. 3.3 ± 10.2%, P = 0.005). However, the lipid parameters and body composition including body weight did not differ between the groups. The prevalence of MetS (36.8% vs. 13.9%, P = 0.022) and the incidence of MetS (10.5% vs. 13.9%, P = 0.027) at 12 weeks was significantly lower in the D. morbifera group than it was in the placebo group. No serious AEs occurred in either group.
CONCLUSIONS
Supplementation with D. morbifera extracts over a 12-week period improved metabolic parameters such as HbA1c and BP and reduced the prevalence of MetS.
10.Comparison of the Efficacy of Rosuvastatin Monotherapy 20 mg with Rosuvastatin 5 mg and Ezetimibe 10 mg Combination Therapy on Lipid Parameters in Patients with Type 2 Diabetes Mellitus
You Cheol HWANG ; Ji Eun JUN ; In Kyung JEONG ; Kyu Jeung AHN ; Ho Yeon CHUNG
Diabetes & Metabolism Journal 2019;43(5):582-589
BACKGROUND: The apolipoprotein B/A1 (apoB/A1) ratio is a stronger predictor of future cardiovascular disease than is the level of conventional lipids. Statin and ezetimibe combination therapy have shown additional cardioprotective effects over statin monotherapy. METHODS: This was a single-center, randomized, open-label, active-controlled study in Korea. A total of 36 patients with type 2 diabetes mellitus were randomized to either rosuvastatin monotherapy (20 mg/day, n=20) or rosuvastatin/ezetimibe (5 mg/10 mg/day, n=16) combination therapy for 6 weeks. RESULTS: After the 6-week treatment, low density lipoprotein cholesterol (LDL-C) and apoB reduction were comparable between the two groups (−94.3±15.4 and −62.0±20.9 mg/dL in the rosuvastatin group, −89.9±22.7 and −66.8±21.6 mg/dL in the rosuvastatin/ezetimibe group, P=0.54 and P=0.86, respectively). In addition, change in apoB/A1 ratio (−0.44±0.16 in the rosuvastatin group and −0.47±0.25 in the rosuvastatin/ezetimibe group, P=0.58) did not differ between the two groups. On the other hand, triglyceride and free fatty acid (FFA) reductions were greater in the rosuvastatin/ezetimibe group than in the rosuvastatin group (−10.5 mg/dL [interquartile range (IQR), −37.5 to 29.5] and 0.0 µEq/L [IQR, −136.8 to 146.0] in the rosuvastatin group, −49.5 mg/dL [IQR, −108.5 to −27.5] and −170.5 µEq/L [IQR, −353.0 to 0.8] in the rosuvastatin/ezetimibe group, P=0.010 and P=0.049, respectively). Both treatments were generally well tolerated, and there were no differences in muscle or liver enzyme elevation. CONCLUSION: A 6-week combination therapy of low-dose rosuvastatin and ezetimibe showed LDL-C, apoB, and apoB/A1 ratio reduction comparable to that of high-dose rosuvastatin monotherapy in patients with type 2 diabetes mellitus. Triglyceride and FFA reductions were greater with the combination therapy than with rosuvastatin monotherapy.
Apolipoprotein A-I
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Apolipoproteins
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Apolipoproteins B
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Cardiovascular Diseases
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Cholesterol, LDL
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Diabetes Mellitus, Type 2
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Ezetimibe
;
Fatty Acids, Nonesterified
;
Hand
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors
;
Korea
;
Liver
;
Rosuvastatin Calcium
;
Triglycerides