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Silva LT, Modesto ACF, de Oliveira RA, Amaral RG, Lopes FM. Mortality and years of life lost related to adverse drug events in Brazil. Rev Saude Publica 2024; 58:20. [PMID: 38747868 PMCID: PMC11090614 DOI: 10.11606/s1518-8787.2024058005458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/22/2023] [Indexed: 05/19/2024] Open
Abstract
OBJECTIVE To assess regional and national mortality and years of life lost (YLL) related to adverse drug events in Brazil. METHODS This is an ecological study in which death records from 2009 to 2018 from the Mortality Information System were analyzed. Codes from the International Classification of Diseases 10th revision (ICD-10) that indicated drugs as the cause of death were identified. The number of deaths and the YLL due to adverse drug events were obtained. Crude, age- and gender-specific, and age-adjusted mortality rates and YLL rates per 100,000 inhabitants were formed by year, age group, gender, and Brazilian Federative Unit. Rate ratios were calculated by comparing rates from 2009 to 2018. A joinpoint regression model was applied for temporal analysis. RESULTS For the selected ICD-10 codes, a total of 95,231 deaths and 2,843,413 YLL were recorded. Mortality rates from adverse drug events increased by a mean of 2.5% per year, and YLL rates increased by 3.7%. Increases in rates were observed in almost all age groups for both genders. Variations in rates were found between Federative Units, with the highest age-adjusted mortality and YLL rates occurring in the Distrito Federal. CONCLUSIONS The numbers and rates of deaths and YLL increased during the study period, and variations in rates of deaths and YLL were observed between Brazilian Federative Units. Information on multiple causes of death from death certificates can be useful for quantifying adverse drug events and analyzing them geographically, by age and by gender.
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Affiliation(s)
- Lunara Teles Silva
- Universidade Federal de GoiásFaculdade de MedicinaPrograma de Pós-Graduação em Ciências da SaúdeGoiâniaGOBrasilUniversidade Federal de Goiás. Faculdade de Medicina. Programa de Pós-Graduação em Ciências da Saúde. Goiânia, GO, Brasil
| | - Ana Carolina Figueiredo Modesto
- Universidade Federal de GoiásHospital das ClínicasGoiâniaGOBrasilUniversidade Federal de Goiás. Hospital das Clínicas. Goiânia, GO, Brasil
| | - Rodrigo Alves de Oliveira
- Tribunal Regional do Trabalho da 18ª RegiãoGoiâniaGOBrasilTribunal Regional do Trabalho da 18ª Região. Goiânia, GO, Brasil
| | - Rita Goreti Amaral
- Universidade Federal de GoiásFaculdade de MedicinaPrograma de Pós-Graduação em Ciências da SaúdeGoiâniaGOBrasilUniversidade Federal de Goiás. Faculdade de Medicina. Programa de Pós-Graduação em Ciências da Saúde. Goiânia, GO, Brasil
- Universidade Federal de GoiásFaculdade de FarmáciaGoiâniaGOBrasilUniversidade Federal de Goiás. Faculdade de Farmácia. Goiânia, GO, Brasil
| | - Flavio Marques Lopes
- Universidade Federal de GoiásFaculdade de MedicinaPrograma de Pós-Graduação em Ciências da SaúdeGoiâniaGOBrasilUniversidade Federal de Goiás. Faculdade de Medicina. Programa de Pós-Graduação em Ciências da Saúde. Goiânia, GO, Brasil
- Universidade Federal de GoiásFaculdade de FarmáciaGoiâniaGOBrasilUniversidade Federal de Goiás. Faculdade de Farmácia. Goiânia, GO, Brasil
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Kimura Y, Jo T, Hashimoto Y, Kumazawa R, Ishimaru M, Matsui H, Yokoyama A, Tanaka G, Yasunaga H. Epidemiology of patients with lymphangioleiomyomatosis: A descriptive study using the national database of health insurance claims and specific health checkups of Japan. Respir Investig 2024; 62:494-502. [PMID: 38583226 DOI: 10.1016/j.resinv.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 03/10/2024] [Accepted: 03/18/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Using patient registries or limited regional hospitalization data may result in underestimation of the incidence and prevalence of rare diseases. Therefore, we used the national administrative database to estimate the incidence and prevalence of lymphangioleiomyomatosis over six years (2014-2019) and describe changes in clinical practice and mortality. METHODS We extracted data from the National Database of Health Insurance Claims and Specific Health Checkups of Japan between January 2013 and December 2020. This database covers ≥99% of the population. We used the diagnostic code for lymphangioleiomyomatosis to estimate the incidence and prevalence from 2014 to 2019. Additionally, we examined the demographic characteristics, treatments, comorbidities, and mortality of the patients. RESULTS In women, the incidence and prevalence of lymphangioleiomyomatosis in 2019 were approximately 3 per 1,000,000 person-years and 28.7 per 1,000,000 persons, respectively. While, in men, the incidence and prevalence of lymphangioleiomyomatosis were <0.2 per 1,000,000 person-years and 0.8 per 1,000,000 persons, respectively. From 2014 to 2019, the proportion of prescriptions of sirolimus and everolimus increased, while the use of home oxygen therapy, chest drainage, comorbid pneumothorax, and bloody phlegm decreased. The mortality rate remained stable at approximately 1%. CONCLUSIONS The incidence and prevalence of lymphangioleiomyomatosis were higher in women than those reported previously. Although the incidence did not change during the 6-year period, the prevalence gradually increased. Moreover, lymphangioleiomyomatosis was observed to be rare in men. The practice of treating patients with lymphangioleiomyomatosis changed across the six years while mortality remained low, at approximately 1%.
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Affiliation(s)
- Yuya Kimura
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan; Clinical Research Center, National Hospital Organization Tokyo Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Taisuke Jo
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan; Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Yohei Hashimoto
- Save Sight Institute, The University of Sydney, South Block, Sydney Eye Hospital 8 Macquarie Street, Sydney, NSW, 2000, Australia
| | - Ryosuke Kumazawa
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Miho Ishimaru
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan; Institute of Education, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Akira Yokoyama
- Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Goh Tanaka
- Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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Nagashima K, Yasuno N, Watanabe M. Creating and evaluating the score to assess overdose: the OD score. BMC Emerg Med 2024; 24:5. [PMID: 38185623 PMCID: PMC10773033 DOI: 10.1186/s12873-023-00923-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/21/2023] [Indexed: 01/09/2024] Open
Abstract
BACKGROUND During disasters (including epidemics such as coronavirus disease 2019), the capacity of emergency departments is exceeded, thereby hindering the administration of appropriate lifesaving measures. Furthermore, the number of overdose patients increases because of the stress overload during emergency situation. The fact that overdose patients are forced to be transported to medical facilities that do not typically treat them is becoming worrisome. Moreover, there is no definitive score for overdose. This study aimed to create a patient-specific scoring system to assess overdose. METHODS This was a retrospective single-center study. The evidence-based OD score was evaluated on a scale of 0-15. Further, logistic analysis and receiver operating characteristic (ROC) curve analysis were performed to evaluate the score. RESULTS Overall, 262 patients (including 118 overdose patients) receiving care at the intensive care unit of Japan's Teikyo University Hospital in 2021 were targeted. Regarding the total OD score, ROC analysis revealed a cutoff of 8 (area under the curve [AUC]: 0.99, 95% confidence interval [CI]: 0.980-0.997, sensitivity: 0.95, specificity: 0.95, p < 0.05), which was considered to indicate an overdose. Of the items evaluated in the OD score, the scenario at the location of the patient's discovery (adjusted odds ratio [AOR]: 16.8, 95% CI: 5.0-255.9, p = 0.002) and recent experience of mental anxiety (AOR: 55.7, 95% CI: 2.8-5399.5, p = 0.03) significantly predicted an overdose in multivariable logistic regression analysis. External validation revealed that the OD score could also identify overdose in patients treated in a cohort from 2022 (average cutoff: 8.6, average AUC: 1.0, p < 0.0001). CONCLUSIONS The OD score could accurately assess overdose patients. Medical facilities that do not frequently address overdose patients will benefit from the use of this score.
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Affiliation(s)
- Kazuki Nagashima
- Laboratory of Practical Pharmacy, Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan.
- Laboratory of Clinical Pharmaceutics, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.
| | - Nobuhiro Yasuno
- Laboratory of Hospital Pharmacy, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Machiko Watanabe
- Laboratory of Clinical Pharmaceutics, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
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Li Y, Fujii M, Ohno Y, Ikeda A, Godai K, Nakamura Y, Akagi Y, Yabe D, Tsushita K, Kashihara N, Kamide K, Kabayama M. Lifestyle factors associated with a rapid decline in the estimated glomerular filtration rate over two years in older adults with type 2 diabetes-Evidence from a large national database in Japan. PLoS One 2023; 18:e0295235. [PMID: 38091297 PMCID: PMC10718407 DOI: 10.1371/journal.pone.0295235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND The present study investigated lifestyle risk factors from metabolic syndrome-related lifestyles for a rapid decline in the estimated glomerular filtration rate (eGFR) among adults aged 40-74 years with treated and untreated type 2 diabetes. METHODS AND RESULTS This study analyzed data from the National Database of Health Insurance Claims and Specific Health Checkups of Japan, encompassing the period from fiscal year (FY) 2017 to FY2020. We established FY2018 as our baseline year. The subjects of this study were adults aged 40-74 in FY2018(baseline) who had type 2 diabetes and underwent specific health checkups in FY2020. We excluded adults with a medical record of kidney dialysis between FY2017 and FY2018, records of suspected type 1 diabetes between FY2017 and FY2020, or a baseline eGFR >85 mL/min/1.73 m2 or missing eGFR data as of FY2020. Eventually we analyzed 573,860 individuals. The outcome variable was a rapid decline in eGFR (≥30%) during the follow-up. Exposure lifestyle factors included skipping breakfast, late-night dinners, regular smoking, a high alcohol intake, non-refreshing sleep, and a lack of habitual exercise. Logistic regression models were stratified by age (40-59 and 60-74 years) and baseline eGFR levels (60-85, 30-59, and <30 mL/min/1.73 m2). Covariates included sex, a history of heart disease, a history of stroke, a history of renal failure, anemia, low-density lipoprotein, systolic blood pressure, hemoglobin A1C, body mass index, antidiabetic medications, antihypertension drugs, lipid-lowering drugs, the oral adsorbent Kremezin, non-steroidal anti-inflammatory drugs, and drugs for the treatment of renal anemia. A rapid decline in eGFR was detected in approximately 1.3% of participants (7,683 cases). In the baseline eGFR >30 subgroups (60-85 or 30-59 mL/min/1.73 m2), skipping breakfast and regular smoking were associated with a rapid decline in eGFR in both age groups, while a lack of habitual exercise and late-night dinners in the 60-74 age group and non-refreshing sleep in the 40-59 age group were identified as risk factors. Additionally, skipping breakfast was a risk factor for a rapid decline in eGFR in the 60-74 age group regardless of baseline eGFR levels. In the baseline eGFR <30 mL/min/1.73 m2 subgroup, skipping breakfast and non-refreshed sleep were risk factors for a rapid decline in eGFR. CONCLUSIONS We found specific lifestyle risk factors were associated with a rapid eGFR decline among people with type 2 diabetes from a nationwide database in Japan. The associations varied by baseline eGFR level, age, and sex. Lifestyle modifications may effectively prevent the aggravation of diabetic kidney disease.
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Affiliation(s)
- Yaya Li
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Makoto Fujii
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuko Ohno
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Asuka Ikeda
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Kayo Godai
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuko Nakamura
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuya Akagi
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Daisuke Yabe
- Department of Diabetes, Endocrinology and Metabolism and Department of Rheumatology and Clinical Immunology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kazuyo Tsushita
- Graduate Schools of Nutrition Sciences, Kagawa Nutrition University, Saitama, Sakado, Japan
| | - Naoki Kashihara
- Department of Nephrology and Hypertension, Kawasaki Medical School, Kurashiki, Japan
| | - Kei Kamide
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Mai Kabayama
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan
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Suto M, Sugiyama T, Imai K, Furuno T, Hosozawa M, Ichinose Y, Ihana-Sugiyama N, Kodama T, Koizumi R, Shimizu-Motohashi Y, Murata S, Nakamura Y, Niino M, Sato M, Taguchi R, Takegami M, Tanaka M, Tsutsumimoto K, Usuda K, Takehara K, Iso H. Studies of Health Insurance Claims Data in Japan: A Scoping Review. JMA J 2023; 6:233-245. [PMID: 37560376 PMCID: PMC10407298 DOI: 10.31662/jmaj.2022-0184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 04/12/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Health insurance claims data are used in various research fields; however, an overview on how they are used in healthcare research is scarce in Japan. Therefore, we conducted a scoping review to systematically map the relevant studies using Japanese claims data. METHODS MEDLINE, EMBASE, and Ichushi-Web were searched up to April 2021 for studies using Japanese healthcare claims data. We abstracted the data on study characteristics and summarized target diseases and research themes by the types of claims database. Moreover, we described the results of studies that aimed to compare health insurance claims data with other data sources narratively. RESULTS A total of 1,493 studies were included. Overall, the most common disease classifications were "Diseases of the circulatory system" (18.8%, n = 281), "Endocrine, nutritional, and metabolic diseases" (11.5%, n = 171; mostly diabetes), and "Neoplasms" (10.9%, n = 162), and the most common research themes were "medical treatment status" (30.0%, n = 448), "intervention effect" (29.9%, n = 447), and "clinical epidemiology, course of diseases" (27.9%, n = 417). Frequent diseases and themes varied by type of claims databases. A total of 19 studies aimed to assess the validity of the claims-based definition, and 21 aimed to compare the results of claims data with other data sources. Most studies that assessed the validity of claims data compared to medical records were hospital-based, with a small number of institutions. CONCLUSIONS Claims data are used in various research areas and will increasingly provide important evidence for healthcare policy in Japan. It is important to use previous claims database studies and share information on methodology among researchers, including validation studies, while informing policymakers about the applicability of claims data for healthcare planning and management.
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Affiliation(s)
- Maiko Suto
- Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan
| | - Takehiro Sugiyama
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
- Department of Health Services Research, Institute of Medicine, University of Tsukuba, Ibaraki, Japan
- Diabetes and Metabolism Information Center, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kenjiro Imai
- Diabetes and Metabolism Information Center, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takashi Furuno
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Mariko Hosozawa
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yuichi Ichinose
- Division of Health Services Research, Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Noriko Ihana-Sugiyama
- Diabetes and Metabolism Information Center, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tomoko Kodama
- Department of Public Health Policy, National Institute of Public Health, Saitama, Japan
| | - Ryuji Koizumi
- AMR Clinical Reference Center, Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yuko Shimizu-Motohashi
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Shunsuke Murata
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Yayoi Nakamura
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Mariko Niino
- Division of Health Services Research, Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Misuzu Sato
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Reina Taguchi
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
- Institute for Health Economics and Policy, Tokyo, Japan
| | - Misa Takegami
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Motoko Tanaka
- Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan
- Department of Health Care Policy and Management, Doctoral Program in Public Health, Degree Programs in Comprehensive Human Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Kentaro Usuda
- Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kenji Takehara
- Department of Health Policy, National Center for Child Health and Development, Tokyo, Japan
| | - Hiroyasu Iso
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
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Togashi S, Isawa T, Honda T, Furuya K, Yamaya K, Taguri M, Toyoda S. Regional Disparities in Transvenous Lead Extraction for Cardiac Implantable Electronic Device Infection in Japan - A Descriptive Study Using the National Database Open Data. Circ J 2023; 87:1000-1006. [PMID: 37197942 DOI: 10.1253/circj.cj-23-0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
BACKGROUND Because the penetration of transvenous lead extraction (TLE) for cardiac implantable electronic device (CIED) infection has not been investigated in Japan, we conducted a population-based, retrospective, descriptive study to evaluate regional disparities in the use of TLE for CIED infection and the potential undertreatment of CIED infection using a nationwide insurance claims database.Methods and Results: Patients who underwent CIED implantation or generator exchange and TLE between April 2018 and March 2020 were identified. Moreover, the penetration ratio of TLE for CIED infection in each prefecture was estimated. CIED implantation and TLE were most prevalent in the age categories of 80-89 years (40.3%) and 80-89 years (36.9%), respectively. There was no correlation between the number of CIED implantations and that of TLE (rho=-0.087, 95% confidence interval -0.374 to 0.211, P=0.56). The median penetration ratio was 0.00 (interquartile range 0.00-1.29). Of the 47 prefectures, 6, comprising Okinawa, Miyagi, Okayama, Fukuoka, Tokyo, and Osaka, showed a penetration ratio ≥2.00. CONCLUSIONS Our study data indicated great regional disparities in the penetration of TLE and potential undertreatment of CIED infection in Japan. Additional measures are needed to address these issues.
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Affiliation(s)
- Shintaro Togashi
- Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health
- Department of Nursing Care, Sendai Kousei Hospital
| | | | - Taku Honda
- Department of Cardiology, Sendai Kousei Hospital
| | - Kenichi Furuya
- Department of Medical Technology, Sendai Kousei Hospital
| | - Kazuhiro Yamaya
- Department of Cardiovascular Surgery, Sendai Kousei Hospital
| | | | - Shigeru Toyoda
- Department of Cardiovascular Medicine, Dokkyo Medical University
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Machida M, Nishioka Y, Noda T, Imamura T. Research note changes in the number of outpatient visits in Japan during the COVID-19 pandemic. BMC Res Notes 2023; 16:70. [PMID: 37143139 PMCID: PMC10158698 DOI: 10.1186/s13104-023-06336-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 04/18/2023] [Indexed: 05/06/2023] Open
Abstract
OBJECTIVE This study aimed to determine the change in the number of outpatient visits in Japan since the beginning of the COVID-19 pandemic, using data on the outpatient claims submitted by medical institutions to insurers in 2019 and 2020, from the National Database of Health Insurance Claims and Specific Health Check-ups. We calculated the total number of outpatient visits, and number of visits for individual diseases according to the International Classification of Diseases-10 codes on the claim form. RESULTS The number of outpatient visits per million people decreased by 9.98% in 2020 compared to 2019. Of the diseases included in the analysis, 71 showed a decrease in the number of visits by ≥ 1%. There were significant decreases in the number of visits related to infectious diseases (influenza, acute bronchitis, and acute laryngitis, etc.), and chronic diseases (hemorrhoids, cystic kidney disease, dyspepsia, and chronic sinusitis, etc.). The observed decreased rate of outpatient visit might have been due to, a decrease in the incidence of disease, a decreased frequency of visit by patients with the disease, or both. Our analysis method using actual health insurance claim data can be applied worldwide, where researchers have access to national information on health insurance claims.
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Affiliation(s)
- Munehito Machida
- Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-Cho, Kashihara city, 634-8521, Nara, Japan.
- Department of Public Health Policy, National Institute of Public Health, Wako city, Saitama, Japan.
| | - Yuichi Nishioka
- Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-Cho, Kashihara city, 634-8521, Nara, Japan
| | - Tatsuya Noda
- Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-Cho, Kashihara city, 634-8521, Nara, Japan
| | - Tomoaki Imamura
- Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-Cho, Kashihara city, 634-8521, Nara, Japan
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Okamoto N, Ikenouchi A, Chibaatar E, Watanabe K, Igata R, Seki I, Yoshimura R. Risk Factors in Japanese Drug Overdose Patients: Identifying Their Associations With Suicide Risk. OMEGA-JOURNAL OF DEATH AND DYING 2023:302228231166970. [PMID: 36972707 DOI: 10.1177/00302228231166970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Several suicide attempts presented at the emergency department are due to drug overdose associated with psychiatric disorders. We examined and identified the major risk factors among Japanese drug overdose patients and several close associations of suicide risk. We enrolled 101 patients who attempted suicide by drug overdose between January 2015 and April 2018, assessed their background using the SAD PERSONS scale, and performed association rule analysis to characterize the major risk factors and their associations. We identified three main nodes-depressive state, social support lacking, and no spouse-as considerable risk factors. Furthermore, we identified several close associations of suicide risk and their intensity; in cases with previous suicide attempts and ethanol abuse or substance use, a simultaneous social support lacking is likely. These findings align with previous studies that used conventional statistical analysis on suicide and suicide attempt risk and highlight its importance.
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Affiliation(s)
- Naomichi Okamoto
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Atsuko Ikenouchi
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
- Medical Center for Dementia, University Hospital, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Enkhmurun Chibaatar
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Keita Watanabe
- Open Innovation Institute, Kyoto University, Kyoto, Japan
| | - Ryohei Igata
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Issei Seki
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Reiji Yoshimura
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
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9
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Sato S, Yasunaga H. A Review of Studies Using Japanese Nationwide Administrative Claims Databases. ANNALS OF CLINICAL EPIDEMIOLOGY 2023; 5:58-64. [PMID: 38505730 PMCID: PMC10944998 DOI: 10.37737/ace.23008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/16/2022] [Indexed: 03/21/2024]
Abstract
BACKGROUND Administrative claims databases are increasingly being used worldwide for research purposes. We reviewed original published articles that used one of the four nationwide administrative claims databases in Japan: the National Database of Health Insurance Claims and Specific Health Checkups (NDB), NDB Open Data, the JMDC Claims Database, and the Diagnosis Procedure Combination (DPC) database. METHODS Studies published from January 2010 to July 2022 using the JMDC and DPC databases, and from January 2013 to July 2022 using the NDB and NDB Open Data were identified using PubMed. The number of original articles was divided into 19 fields. The annual growth rate of the number of studies was calculated using the four databases. RESULTS Overall, 1047 studies were included (95 for the NDB, 31 for the NDB Open Data, 222 for the JMDC database, and 699 for the DPC databases). Studies using one of these four databases increased from around 2010, and the average annual growth rate was approximately 41% from 2010 to 2021. DPC database studies had a higher proportion of articles on surgery (19.2%), urology (3.0%), neurosurgery (6.2%), anesthesiology (1.9%), and emergency medicine (14.0%), whereas the NDB and JMDC data had higher proportions of those regarding internal medicine. CONCLUSIONS Since 2010, these four databases have increasingly attracted attention, and the number of studies using them has grown rapidly. Our review suggests that each has unique features, and researchers should understand the database characteristics to operate their studies.
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Affiliation(s)
- So Sato
- Department of Clinical Epidemiology and Health Economics, Graduate School of Medicine, The University of Tokyo
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, Graduate School of Medicine, The University of Tokyo
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Dynamic Changes in Plasma Metabolic Profiles Reveal a Potential Metabolite Panel for Interpretation of Fatal Intoxication by Chlorpromazine or Olanzapine in Mice. Metabolites 2022; 12:metabo12121184. [PMID: 36557223 PMCID: PMC9782175 DOI: 10.3390/metabo12121184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/11/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Diagnosing the cause of fatal intoxication by antipsychotic agents is an important task in forensic practice. In the 2020 Annual Report of the American Association of Poison Control Centers, among 40 deaths caused by antipsychotics, 21 cases were diagnosed as "probably responsible", thereby indicating that more objective diagnostic tools are needed. We used liquid chromatography-mass spectrometry-based integrated metabolomics analysis to measure changes in metabolic profiles in the plasma of mice that died from fatal intoxication due to chlorpromazine (CPZ) or olanzapine (OLA). These results were used to construct a stable discriminative classification model (DCM) comprising L-acetylcarnitine, succinic acid, and propionylcarnitine between fatal intoxication caused by CPZ/OLA and cervical dislocation (control). Performance evaluation of the classification model in mice that suffered fatal intoxication showed relative specificity for different pharmacodynamic drugs and relative sensitivity in different life states (normal, intoxication, fatal intoxication). A stable level of L-acetylcarnitine and variable levels of succinic acid and propionylcarnitine between fatal-intoxication and intoxication groups revealed procedural perturbations in metabolic pathways related to fatal intoxication by CPZ/OLA. Additional stability studies revealed that decomposition of succinic acid in fatal-intoxication samples (especially in the OLA group) could weaken the prediction performance of the binary-classification model; however, levels of these three potential metabolites measured within 6 days in fresh samples kept at 4 °C revealed a good performance of our model. Our findings suggest that metabolomics analysis can be used to explore metabolic alterations during fatal intoxication due to use of antipsychotic agents and provide evidence for the cause of death.
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Roy A, Alam MA, Kim Y, Hashizume M. Association between daily ambient temperature and drug overdose in Tokyo: a time-series study. Environ Health Prev Med 2022; 27:36. [PMID: 36171116 PMCID: PMC9556974 DOI: 10.1265/ehpm.21-00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Background Previous studies have reported that high ambient temperature is associated with increased risk of suicide; however, the association has not been extensively investigated with drug overdose which is the most common method of unsuccessful suicidal behavior in Japan. Therefore, this study aims to examine the short-term association between daily mean temperature and the incidence of self-harm attempts by drug overdose in Tokyo, Japan. Methods We collected the emergency ambulance dispatch data and daily meteorological data in Tokyo from 2010 to 2014. A quasi-Poisson regression model incorporating a distributed lag non-linear function was applied to estimate the non-linear and delayed association between temperature and drug overdose, adjusting for relative humidity, seasonal and long-term trends, and days of the week. Sex, age and location-specific associations of ambient temperature with drug overdose was also estimated. Results 12,937 drug overdose cases were recorded during the study period, 73.9% of which were female. We observed a non-linear association between temperature and drug overdose, with the highest risk observed at 21 °C. The highest relative risk (RR) was 1.30 (95% Confidence Interval (CI): 1.10–1.67) compared with the risk at the first percentile of daily mean temperature (2.9 °C) over 0–4 days lag period. In subgroup analyses, the RR of a drug overdose at 21 °C was 1.36 (95% CI: 1.02–1.81) for females and 1.07 (95% CI: 0.66–1.75) for males. Also, we observed that the risk was highest among those aged ≥65 years (RR = 2.54; 95% CI: 0.94–6.90), followed by those aged 15–34 years (RR = 1.25; 95% CI: 0.89–1.77) and those aged 35–64 years (RR = 1.15; 95% CI: 0.78–1.68). There was no evidence for the difference in RRs between urban (23 special wards) and sub-urban areas in Tokyo. Conclusions An increase in daily mean temperature was associated with increased drug overdose risk. This study indicated the positive non-linear association between temperature and incomplete attempts by drug overdose. The findings of this study may add further evidence of the association of temperature on suicidal behavior and suggests increasing more research and investigation of other modifying factors. Supplementary information The online version contains supplementary material available at https://doi.org/10.1265/ehpm.21-00044.
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Affiliation(s)
- Ananya Roy
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo
| | - Md Ashraful Alam
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo
| | - Yoonhee Kim
- Department of Global Environmental Health, Graduate School of Medicine, The University of Tokyo
| | - Masahiro Hashizume
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo
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12
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A Review of Research Studies Using Data from the Administrative Claims Databases in Japan. Drugs Real World Outcomes 2022; 9:543-550. [DOI: 10.1007/s40801-022-00331-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2022] [Indexed: 10/14/2022] Open
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13
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Mizuno K, Inose R, Matsui Y, Takata M, Yamasaki D, Kusama Y, Koizumi R, Ishikane M, Tanabe M, Ohge H, Ohmagari N, Muraki Y. Search for Indexes to Evaluate Trends in Antibiotic Use in the Sub-Prefectural Regions Using the National Database of Health Insurance Claims and Specific Health Checkups of Japan. Antibiotics (Basel) 2022; 11:antibiotics11060763. [PMID: 35740169 PMCID: PMC9219656 DOI: 10.3390/antibiotics11060763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 05/30/2022] [Accepted: 05/30/2022] [Indexed: 01/21/2023] Open
Abstract
The evaluation indexes of antimicrobial use (AMU) in sub-prefectural regions have not been established because these regional units are susceptible to the effects of population inflows and outflows. We defined the difference in AMU calculated each year as a new evaluation index and compared the AMU of secondary medical areas with those already reported for Japan and each prefecture. Patients/1000 inhabitants/day (PID) for oral antibiotics in 2013 and 2016 were calculated using the National Database of Health Insurance Claims and Specific Health Checkups. ΔPID was defined as the difference between the PIDs in 2013 and 2016. Differences in AMUs for Japan and prefectures that have already been published were also calculated, and the concordance rate with ΔPID in each secondary medical area was evaluated. Antibiotics and age groups with less than 50% concordance between secondary medical area and previously reported AMU changes were observed. This revealed that even at the secondary medical area level, which is more detailed than the prefectural level, the AMU changes were not consistent. Therefore, in order to appropriately promote measures against antimicrobial resistance, we suggest the necessity of not only surveying AMU at the national or prefectural levels but also examining sub-prefectural trends in AMU.
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Affiliation(s)
- Kanako Mizuno
- Department of Clinical Pharmacoepidemiology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan; (K.M.); (R.I.); (Y.M.); (M.T.)
| | - Ryo Inose
- Department of Clinical Pharmacoepidemiology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan; (K.M.); (R.I.); (Y.M.); (M.T.)
| | - Yuna Matsui
- Department of Clinical Pharmacoepidemiology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan; (K.M.); (R.I.); (Y.M.); (M.T.)
| | - Mai Takata
- Department of Clinical Pharmacoepidemiology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan; (K.M.); (R.I.); (Y.M.); (M.T.)
| | - Daisuke Yamasaki
- Department of Infection Control and Prevention, Mie University Hospital, Tsu 514-8507, Japan; (D.Y.); (M.T.)
| | - Yoshiki Kusama
- Division of General Pediatrics, Department of Pediatrics, Hyogo Prefectural Amagasaki General Medical Center, Amagasakic 660-8550, Japan;
| | - Ryuji Koizumi
- AMR Clinical Reference Center, Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo 162-8655, Japan; (R.K.); (M.I.); (N.O.)
| | - Masahiro Ishikane
- AMR Clinical Reference Center, Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo 162-8655, Japan; (R.K.); (M.I.); (N.O.)
| | - Masaki Tanabe
- Department of Infection Control and Prevention, Mie University Hospital, Tsu 514-8507, Japan; (D.Y.); (M.T.)
| | - Hiroki Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima 734-8551, Japan;
| | - Norio Ohmagari
- AMR Clinical Reference Center, Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo 162-8655, Japan; (R.K.); (M.I.); (N.O.)
| | - Yuichi Muraki
- Department of Clinical Pharmacoepidemiology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan; (K.M.); (R.I.); (Y.M.); (M.T.)
- Correspondence: ; Tel.: +81-75-595-4600
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14
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Incidence of interventions for diabetic retinopathy and serious lower-limb complications and its related factors in patients with type 2 diabetes using a real-world large claims database. Diabetol Int 2022; 13:548-560. [PMID: 35693997 PMCID: PMC9174399 DOI: 10.1007/s13340-021-00566-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 12/20/2021] [Indexed: 01/16/2023]
Abstract
Aims To examine the incidence of interventions for diabetic retinopathy and serious limb complications and to elucidate the patient attributes related to the incidence of each intervention based on real-world claims data from Japan. Materials and methods A retrospective longitudinal study design involving a 9 year (2009-2018) claims database obtained from the JMDC Inc. Patients with type 2 diabetes aged 20-74 years taking antidiabetic medications were divided into two groups: "patients with newly initiated antidiabetic medication" (Group 1, n = 47,201) and "patients with continuing antidiabetic medication" (Group 2, n = 82,332). The incidence rate for each intervention was analyzed. We also divided Group 1 into the former and latter periods and investigated temporal changes. Results The incidences of the first retinopathy intervention (laser photocoagulation, vitrectomy, or intraocular injection), vitrectomy, and lower-limb amputations in Group 1 were 7.46, 2.37, and 0.31 /1000 person-years, respectively. Those in Group 2 were about 1.2-1.5 times higher. Older age, insulin use, and being dependents rather than insured persons were associated with a higher incidence in both groups after adjustment. While the incidence of the interventions for retinopathy hardly changed during the observation period, that of lower-limb amputations decreased by 40%, with less statistical significance (p = 0.11). Conclusions We showed the incidences of the first retinopathy interventions and lower-limb amputations and their secular trends in patients with diabetes, stratified by whether the antidiabetic medication was newly initiated or not. Older age, insulin use, and being dependents were risk factors of these interventions for diabetic complications. Supplementary Information The online version contains supplementary material available at 10.1007/s13340-021-00566-7.
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Relationship between diverting stoma and adjuvant chemotherapy in patients with rectal cancer: a nationwide study using the National Database of Health Insurance Claims and Specific Health Checkups of Japan. Int J Clin Oncol 2021; 27:545-552. [PMID: 34783935 DOI: 10.1007/s10147-021-02079-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 11/08/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Patients at risk of recurrence after curative surgery for rectal cancer usually receive adjuvant chemotherapy. Postoperative recovery after low anterior resection (LAR) for rectal cancer can be improved by placement of a diverting stoma to reduce anastomotic leakage. However, it remains unclear how a diverting stoma affects administration of adjuvant chemotherapy in these patients. METHODS We identified Japanese patients with rectal cancer who underwent LAR in 2014 and received adjuvant chemotherapy within 12 months of surgery in the National Database of Health Insurance Claims and Specific Health Checkups of Japan. Doses of five types of chemotherapy administered (tegafur/uracil, tegafur/gimeracil/oteracil potassium, capecitabine, 5-fluorouracil, and oxaliplatin) were assessed according to the presence or absence of diverting stoma and the timing of stoma closure. RESULTS There was no significant difference in the cumulative doses of chemotherapy administered in the 12 months after LAR between patients with and without diverting stoma, but more doses were administered in the early postoperative period (0-2 months after LAR) in patients without diverting stoma. Also, more doses of chemotherapy, regardless of type, were administered in the late closure group (7-12 months after LAR) than in the early closure (≤ 6 months) and no closure groups. CONCLUSION Presence of a diverting stoma did not influence the dose of adjuvant chemotherapy administered within 12 months after LAR but could have delayed the start of adjuvant chemotherapy. Patients with late closure of a diverting stoma received more doses of adjuvant chemotherapy administered over 12 months.
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Silva LT, Modesto ACF, Amaral RG, Lopes FM. Hospitalizations and deaths related to adverse drug events worldwide: Systematic review of studies with national coverage. Eur J Clin Pharmacol 2021; 78:435-466. [PMID: 34716774 DOI: 10.1007/s00228-021-03238-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/18/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE Adverse drug events are related to negative outcomes in healthcare, including hospitalization, increased duration of hospital stay and death. The aim of this study was to conduct a systematic review to evaluate hospitalizations and deaths related to adverse drug events worldwide, reported in studies with national coverage. METHODS The protocol was registered in PROSPERO (CRD42020157008). We performed a systematic search on Medline, Embase, CINAHL, LILACS, and the Cochrane Library (until March 2020) using pre-specified terms. We included published studies that reported data on hospitalizations and/or deaths related to adverse drug events from a national perspective and the use of secondary data as a source of information. Two reviewers independently extracted and synthesized data. The quality of the studies was assessed using an adapted version of the Joanna Briggs Institute critical appraisal checklist for prevalence studies. Narrative summaries of findings were undertaken. RESULTS Among 59,336 citations, 62 studies were included for data extraction and synthesis. Among these studies, 41 studies included the outcome of hospitalization, 16 included the death outcome, and five included both outcomes. Administrative databases regarding discharges and registries of vital statistics were the most common sources of information. The relative frequency of hospitalizations ranged from 0.03% to 7.3%, and from 9.7 to 383.0/100,000 population, whereas mortality rate ranged from 0.1 to 7.88/100,000 population. CONCLUSION Our study highlights information about adverse drug events using large administrative databases in a national scenario and provides an overview of databases and methods implemented to detect adverse drug events.
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Affiliation(s)
- Lunara Teles Silva
- Postgraduate Program On Health Sciences, School of Medicine, Universidade Federal de Goiás - UFG, Goiânia, Goiás, Brazil
| | | | - Rita Goreti Amaral
- School of Pharmacy, Universidade Federal de Goiás - UFG, Goiânia, Goiás, Brazil
| | - Flavio Marques Lopes
- School of Pharmacy, Universidade Federal de Goiás - UFG, Goiânia, Goiás, Brazil.
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17
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Sengoku T, Ishizaki T, Goto Y, Iwao T, Ohtera S, Sakai M, Kato G, Nakayama T, Takahashi Y. Prevalence of type 2 diabetes by age, sex and geographical area among two million public assistance recipients in Japan: a cross-sectional study using a nationally representative claims database. J Epidemiol Community Health 2021; 76:391-397. [PMID: 34711673 DOI: 10.1136/jech-2020-216158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 10/11/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Recognising the importance of the social determinants of health, the Japanese government introduced a health management support programme targeted at type 2 diabetes (T2D) for public assistance recipients (PAR) in 2018. However, evidence of the T2D prevalence among PAR is lacking. We aimed to estimate T2D prevalence by age and sex among PAR, compared with the prevalence among health insurance enrollees (HIE). Additionally, regional differences in T2D prevalence among PAR were examined. METHODS This was a cross-sectional study using 1-month health insurance claims of both PAR and HIE. The Fact-finding Survey data on Medical Assistance and the National Database of Health Insurance Claims data were used. T2D prevalence among PAR and HIE were assessed by age and sex, respectively. Moreover, to examine regional differences in T2D prevalence of inpatients and outpatients among PAR, T2D crude prevalence and age-standardised prevalence were calculated by prefecture. Multilevel logistic regression analysis was also conducted at the city level. RESULTS T2D crude prevalence was 7.7% in PAR (inpatients and outpatients). Among outpatients, the prevalence was 7.5% in PAR and 4.1% in HIE, respectively. The mean crude prevalence and age-standardised prevalence of T2D (inpatients and outpatients) among 47 prefectures were 7.8% and 3.9%, respectively. In the city-level analysis, the OR for the prevalence of T2D by region ranged from 0.31 to 1.51. CONCLUSION The prevalence of T2D among PAR was higher than HIE and there were regional differences in the prevalence of PAR. Measures to prevent the progression of diabetes among PAR by region are needed.
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Affiliation(s)
- Tami Sengoku
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Tatsuro Ishizaki
- Human Care Research Team, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo, Japan
| | - Yoshihito Goto
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | | | - Shosuke Ohtera
- Kyoto University Hospital, Kyoto, Japan.,National Institute of Public Health, Wako, Japan
| | - Michi Sakai
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan.,Comprehensive Unit for Health Economic Evidence Review and Decision Support, Ritsumeikan University, Kyoto, Japan
| | | | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Yoshimitsu Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
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Bai R, Xie B, Cong B, Ma CL, Wen D. Epidemiological Characteristics of Sedative-Hypnotics and Opioid Painkillers at High-Frequency Exposure. FA YI XUE ZA ZHI 2021; 37:694-698. [PMID: 35187923 DOI: 10.12116/j.issn.1004-5619.2020.300702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Drug poisoning has a high incidence and serious consequences in medical institutions; its epidemiological characteristics also directly affect the changes in national laws and policies and the implementation of local management policies. Chinese statistics on drug-related abnormal death cases generally come from judicial appraisal centers and medical units. However, due to differences in work content and professional restrictions, there are differences in information management forms, which makes it difficult for appraisers to conduct a professional and systematic analysis of drug-related cases. This article focuses on the analysis of epidemiological characteristics of sedative-hypnotics and opioid painkillers and their exposure patterns in cases of poisoning death by analyzing the annual report of the American Association of Poison Control Center, combined with the characteristics of drug exposure in China.
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Affiliation(s)
- Rui Bai
- Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Bing Xie
- Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Bin Cong
- Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Chun-Ling Ma
- Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Di Wen
- Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China
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Nagashima K, Sumida M, Imanaka S, Kuwabara T, Kaneko I, Miyake Y, Yasuno N, Itagaki F, Watanabe M. Evaluation of factors related to overdose in patients with impaired consciousness who are transported by emergency medical services: an age-specific research. J Pharm Health Care Sci 2021; 7:34. [PMID: 34593039 PMCID: PMC8485428 DOI: 10.1186/s40780-021-00217-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 07/18/2021] [Indexed: 12/02/2022] Open
Abstract
Background Drug overdose accounts for most of the admissions to the emergency department. Prescription drugs, most of which are psychotropic medications, are often misused for drug overdose. The purpose of this study was to investigate the association between overdose in patients transported with disorders of consciousness and psychotropic medications administered prior to transport, so as to enable quick differentiation of drug overdose patients from patients with disorders of consciousness. Methods We evaluated 222 patients transported to the Advanced Critical Care Center of Teikyo University Hospital due to disorders of consciousness. The patients were categorized into two groups: overdose group (n = 128) and control group with other disorders of consciousness (n = 94). Logistic regression models were used to assess the association between disorders of consciousness due to drug overdose and psychotropic drugs prescribed before emergency transportation based on sex and age. Results According to multivariate logistic regression analysis, only female sex (odds ratio [OR] 4.54, 95% confidence interval [CI] 2.43–8.05, P < 0.0001) was associated with overall overdose. Results from the univariate logistic regression analysis showed that in the group of patients aged 40–50 years, female sex (OR 4.36, 95% CI; 1.54–12.4, P = 0.006) and the use of psychotropic drugs (OR 5.05, 95% CI; 1.75–14.6, P = 0.003), benzodiazepines (OR 4.64, 95% CI; 1.61–13.4, P < 0.05), antidepressants (OR 11.4, 95% CI; 2.35–55.8, P = 0.003), and anticonvulsants (OR 4.46, 95% CI; 1.11–17.9, P = 0.035) were associated with overdose. According to multivariate logistic regression analysis, female sex (OR 4.44, 95% CI; 1.37–14.3, P = 0.013) and antidepressants (OR 7.95, 95% CI; 1.21–52.1, P = 0.031) were associated with overdose patients aged 40–50 years. Conclusions As a reference in distinguishing overdose in women in their 40s and 50s who present with impaired consciousness, attention may need to be paid to the type of psychotropic drug used, especially antidepressants.
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Affiliation(s)
- Kazuki Nagashima
- Laboratory of Clinical Pharmaceutics, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Megumi Sumida
- Laboratory of Clinical Pharmaceutics, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Shoichi Imanaka
- Department of Pharmacy, Teikyo University Hospital, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8606, Japan
| | - Tatsuro Kuwabara
- Department of Pharmacy, Teikyo University Hospital, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8606, Japan
| | - Ichiro Kaneko
- Department of Emergency Medicine, School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Yasufumi Miyake
- Department of Emergency Medicine, School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Nobuhiro Yasuno
- Laboratory of Clinical Pharmaceutics, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Fumio Itagaki
- Laboratory of Clinical Pharmaceutics, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Machiko Watanabe
- Laboratory of Clinical Pharmaceutics, Faculty of Pharma-Science, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.
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DEN H, Ito J, Kokaze A. Epidemiology of developmental dysplasia of the hip: analysis of Japanese national database. J Epidemiol 2021; 33:186-192. [PMID: 34380918 PMCID: PMC9939923 DOI: 10.2188/jea.je20210074] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BackgroundDevelopmental dysplasia of the hip (DDH) is a cluster of hip development disorders that affects infants. The incidence of DDH-related dislocation (DDH-dislocation) is reportedly 0.1-0.3%; however, the nationwide incidence of DDH-dislocation in Japan has not been previously reported. The primary aim of this study was to report the nationwide incidence of DDH-dislocation in Japan using the National Database of Health Insurance Claims and Specific Health Checkups of Japan (NDB), and to examine its regional variation across Japan.MethodsThis was a retrospective birth cohort study using the NDB. Data on patients born between 2011 and 2013 and assigned DDH-dislocation-related disease codes during 2011-2018 were extracted. Among these, patients who underwent treatment for DDH-dislocation between 2011 and 2018 were defined as patients with DDH-dislocation.ResultsAcross the 2011, 2012, and 2013 birth cohorts, 2367 patients were diagnosed with DDH-dislocation, yielding the nationwide incidence of 0.076%. Region-specific incidence rates were almost similar across Japan. Secondary analyses revealed that 273 (11.5%) patients were diagnosed at the age of ≥1 year. The effect of birth during the cold months on the incidence of DDH-dislocation was significant (relative risk [RR]=1.89, 95% confidence interval [CI]: 1.75-2.06). The risk of DDH-dislocation among girls was approximately seven times higher than that among boys.ConclusionsThis is the first study to report the nationwide incidence of DDH-dislocation in Japan, which was estimated at 0.076%. The regional variation was trivial and unlikely to be clinically significant. Thus, the incidence rates were approximately equal across all regions in Japan.
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Affiliation(s)
- Hiroki DEN
- Department of Hygiene, Public Health, and Preventative Medicine Showa University School of Medicine
| | - Junichi Ito
- Department of Orthopaedic Surgery, National Rehabilitation Center for Children with Disabilities
| | - Akatsuki Kokaze
- Department of Hygiene, Public Health, and Preventative Medicine Showa University School of Medicine
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21
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Tsuneishi M, Yamamoto T, Yamaguchi T, Kodama T, Sato T. Association between number of teeth and Alzheimer's disease using the National Database of Health Insurance Claims and Specific Health Checkups of Japan. PLoS One 2021; 16:e0251056. [PMID: 33930067 PMCID: PMC8087029 DOI: 10.1371/journal.pone.0251056] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 04/20/2021] [Indexed: 02/06/2023] Open
Abstract
Associations of numbers of teeth present and of missing teeth with Alzheimer’s disease were cross-sectionally analyzed using the National Database of Health Insurance Claims and Specific Health Checkups of Japan. Dental care claims data of patients aged 60 years or older diagnosed with periodontitis (n = 4,009,345) or missing teeth (n = 662,182) were used to obtain information about the numbers of teeth present and of missing teeth, respectively, and they were combined with medical care claims data including the diagnosis of Alzheimer’s disease. Numbers of teeth present and of missing teeth excluding third molars were calculated using the dental formula in the claims for periodontitis and missing teeth, respectively, and categorized into three groups each. Percentages of subjects treated for Alzheimer’s disease with 20–28, 10–19, and 1–9 teeth present were 1.95%, 3.87%, and 6.86%, respectively, in patients diagnosed as having periodontitis, and those treated for Alzheimer’s disease with 1–13, 14–27, and 28 missing teeth were 2.67%, 5.51%, and 8.70%, respectively, in patients diagnosed as having missing teeth. Logistic regression models using treatment for Alzheimer’s disease as an outcome variable and adjusting for age and sex showed that odds ratios (95% confidence intervals) for patients with 10–19 and 1–9 teeth (reference: 20–28 teeth) were 1.11 (1.10–1.13) and 1.34 (1.32–1.37), respectively, (p<0.001), in patients diagnosed as having periodontitis, and odds ratios (95% confidence intervals) for patients with 14–27 missing teeth and 28 missing teeth (reference: 1–13 missing teeth) were 1.40 (1.36–1.44) and 1.81 (1.74–1.89), respectively, (p<0.001), in patients diagnosed as having missing teeth. In conclusion, the results of the present study using Japanese dental claims data showed that older people visiting dental offices with fewer teeth present and a greater number of missing teeth are more likely to have Alzheimer’s disease.
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Affiliation(s)
- Midori Tsuneishi
- Japan Dental Association Research Institute, Tokyo, Japan
- * E-mail:
| | - Tatsuo Yamamoto
- Department of Dental Sociology, Kanagawa Dental University, Yokosuka, Japan
| | - Takeyuki Yamaguchi
- Japan Dental Association Research Institute, Tokyo, Japan
- Japan Dental Association, Tokyo, Japan
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Katayama Y, Kiyohara K, Kitamura T, Hirose T, Ishida K, Umemura Y, Kiguchi T, Nakao S, Tachino J, Noda T, Shimazu T. Impact of medical reimbursement revision on ambulance transport of self-inflicted injury patients: a nationwide study in Japan. Acute Med Surg 2021; 8:e693. [PMID: 34589230 PMCID: PMC8459587 DOI: 10.1002/ams2.693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/03/2021] [Accepted: 08/28/2021] [Indexed: 11/25/2022] Open
Abstract
AIM Self-inflicted injury, as one reason to visit the emergency department, is an important issue in emergency medicine around the world. However, the impact of changes in social systems, such as medical reimbursement revision, on ambulance transport for self-inflicted injury remains unclear. The aim of this study was to assess the impact of medical reimbursement revision on the emergency transport of self-inflicted injury patients using nationwide ambulance records. METHODS This was a retrospective observational study from April 2012 to March 2016. We analyzed nationwide ambulance records in Japan, and included self-inflicted injury, drug poisoning, and drug overdose patients transported to hospitals by ambulance. The primary outcome of this study was age-adjusted number of self-inflicted injury patients transported by ambulance in each month per 1 million standard populations. To assess the impact of the medical reimbursement revision in 2014, we calculated the R 2, regression coefficients and 95% confidence interval (CI) using interrupted time series analysis. RESULTS This study included 148,873 patients. The R 2 for the interrupted time series model was 0.821. The regression coefficient for the time trend before the medical reimbursement revision was 0.167 (95% CI, 0.090 to 0.244; p < 0.001), that for the time trend after the medical reimbursement revision was -0.226 (95% CI, -0.327 to -0.125, p < 0.001), and that of the medical reimbursement revision was -2.165 (95% CI, -3.730 to -0.601, p = 0.008). CONCLUSION In Japan, the medical reimbursement revision in April 2014 helped to decrease the number of self-inflicted injury patients transported to hospitals by ambulance.
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Affiliation(s)
- Yusuke Katayama
- Department of Traumatology and Acute Critical MedicineOsaka University Graduate School of MedicineSuitaJapan
| | - Kosuke Kiyohara
- Department of Food ScienceFaculty of Home EconomicsOtsuma Women’s University TokyoTokyoJapan
| | - Tetsuhisa Kitamura
- Division of Environmental Medicine and Population SciencesDepartment of Social and Environmental MedicineOsaka University Graduate School of MedicineSuitaJapan
| | - Tomoya Hirose
- Department of Traumatology and Acute Critical MedicineOsaka University Graduate School of MedicineSuitaJapan
| | - Kenichiro Ishida
- Department of Acute Medicine and Critical Care Medical CenterOsaka National HospitalNational Hospital OrganizationOsakaJapan
| | - Yutaka Umemura
- Division of Trauma and Surgical Critical CareOsaka General Medical CenterOsakaJapan
| | - Takeyuki Kiguchi
- Division of Trauma and Surgical Critical CareOsaka General Medical CenterOsakaJapan
- Kyoto University Health ServicesKyotoJapan
| | - Shunichiro Nakao
- Department of Traumatology and Acute Critical MedicineOsaka University Graduate School of MedicineSuitaJapan
| | - Jotaro Tachino
- Department of Traumatology and Acute Critical MedicineOsaka University Graduate School of MedicineSuitaJapan
| | - Tomohiro Noda
- Department of Traumatology and Critical Care MedicineOsaka City University Graduate School of MedicineOsakaJapan
| | - Takeshi Shimazu
- Department of Traumatology and Acute Critical MedicineOsaka University Graduate School of MedicineSuitaJapan
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Banaye Yazdipour A, Sarbaz M, Dadpour B, Moshiri M, Kimiafar K. Development a national minimum data set for poisoning registry in Iran. Int J Health Plann Manage 2020; 35:1453-1467. [PMID: 32881066 DOI: 10.1002/hpm.3045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/02/2020] [Accepted: 07/29/2020] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES In the developing countries with high mortality rates, poisoning is considered to be one of the most common causes of admission to emergency wards. Given the importance of registering data on poisoned patients, it is very important to have a complete poisoning Minimum Data Set (MDS). Therefore, the purpose of this study was to determine an MDS for poisoning registry in Iran. METHODS This applied and cross-sectional study was conducted through of Delphi technique in the poisoning ward of Imam Reza Hospital (northeastern Iran) in 2019. Literature reviews were initially carried out on such databases as PubMed, Web of Sciences, Scopus, and Embase. Then, Google search was done to retrieve poisoning forms and poisoning registry websites. Also, we considered International Classification of Diseases, 10th Revision coding guidelines of poisoning. Then, a questionnaire containing data elements of poisoning was developed. RESULTS In total, 558 data elements were developed during two rounds of Delphi technique. The MDS was divided into 10 categories including patient and communication data, encounter data, diagnostic data and medical history, exposure data, clinical data, treatment data, complications, paraclinical tests, biobank, and discharge data. CONCLUSIONS Establishing an MDS as the first and most important step towards implementing poisoning registry can be the standard basis for collecting poisoned patient data. The data registered in the poisoning registry can be used for planning, policy-making, prevention, and control purposes.
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Affiliation(s)
- Alireza Banaye Yazdipour
- Department of Medical Records and Health Information Technology, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Masoumeh Sarbaz
- Department of Medical Records and Health Information Technology, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bita Dadpour
- Medical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Moshiri
- Medical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Kimiafar
- Department of Medical Records and Health Information Technology, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
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Usuki M, Kamiura Y, Okubo R, Yamanouchi Y. National database study on the use of long-acting antipsychotic injections and hospital readmission proportions in patients with schizophrenia in Japan. Psychiatry Clin Neurosci 2020; 74:211-217. [PMID: 31875333 PMCID: PMC7065150 DOI: 10.1111/pcn.12970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 11/28/2022]
Abstract
AIM It is important to investigate the current prescription status and clinical outcomes of patients with schizophrenia receiving long-acting antipsychotic injections. We aimed to determine the prescription proportion of long-acting antipsychotic injections and hospital readmission proportions of patients with schizophrenia in Japan. METHODS An open dataset was created using data from the National Database of Health Insurance Claims and Specific Health Checkups of Japan. Patient records with the term 'schizophrenia' were included. In Analysis 1, antipsychotic prescription proportions were determined for outpatients who had visited psychiatric facilities between 1 February 2015 and 31 March 2017. In Analysis 2, patients who had been discharged from a psychiatric facility and had received a long-acting antipsychotic injection prescription within 90 days after initial discharge were selected; then, their readmission proportion was examined for 365 days after the initial discharge. RESULTS The long-acting antipsychotic injection prescription proportion was 3.5% for outpatients with schizophrenia receiving antipsychotics. The readmission proportion was 41.0% in the entire patient population, 36.2% in patients receiving typical long-acting antipsychotic injections alone, and 23.5% in patients receiving atypical long-acting antipsychotic injections alone. CONCLUSION Long-acting antipsychotic injections are not yet widely used in Japan. The readmission proportion was lower in the patients receiving atypical than typical long-acting antipsychotics injections. The results may provide important basic information to develop new future research questions but should be interpreted with caution because generalizability may be limited by the use of aggregated data and the data structure of the database used.
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Affiliation(s)
- Masato Usuki
- Department of Mental Health Policy, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yuhei Kamiura
- Department of Medical Affairs, Otsuka Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Ryo Okubo
- Department of Mental Health Policy, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan.,Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yoshio Yamanouchi
- Department of Mental Health Policy, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
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Suzuki S, Noda T, Nishioka Y, Imamura T, Kamijo H, Sugihara N. Evaluation of tooth loss among patients with diabetes mellitus using the National Database of Health Insurance Claims and Specific Health Checkups of Japan. Int Dent J 2020; 70:308-315. [PMID: 32103503 DOI: 10.1111/idj.12561] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/01/2019] [Accepted: 12/16/2019] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Although diabetes mellitus is reported to be related to tooth loss, there is limited population-based evidence for this relationship. We investigated the actual situation of tooth loss by performing a population-based survey using information obtained from the National Database of Health Insurance Claims and Specific Health Checkups (NDB) in Japan. METHODS Medical, dental and pharmacy claims data generated between 1 April 2015 and 31 March 2016 were obtained and analysed. Patients with medical and pharmacy claims of diabetes mellitus were allocated to the diabetes mellitus group. Patients with medical claims of acute upper respiratory inflammation, but without claims of diabetes mellitus, were allocated to the control group. The number of claims involving tooth loss, treatment of periodontal disease and visits to medical and dental institutions were obtained from the NDB. Descriptive statistics were used to compare the nature of tooth loss between patients with diabetes mellitus and the control groups. RESULTS There were 5,248,405 patients in the control group and 1,570,082 patients in the diabetes mellitus group. Patients in the diabetes mellitus group showed a higher level of tooth loss than patients in the control group, among both sexes. Patients with diabetes mellitus tended to lose their posterior teeth at an earlier age than patients in the control group. Moreover, patients in the diabetes mellitus group showed greater tooth loss, regardless of whether or not periodontal disease was treated. CONCLUSION Patients with diabetes mellitus show a higher level of tooth loss than those without diabetes mellitus, based on the results of a population-based survey.
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Affiliation(s)
- Seitaro Suzuki
- Department of Epidemiology and Public Health, Tokyo Dental College, Tokyo, Japan
| | - Tatsuya Noda
- Department of Public Heath, Health Management and Policy, Nara Medical University, Kashihara, Japan
| | - Yuichi Nishioka
- Department of Public Heath, Health Management and Policy, Nara Medical University, Kashihara, Japan.,Department of Diabetes and Endocrine Medicine, Nara Medical University, Kashihara, Japan
| | - Tomoaki Imamura
- Department of Public Heath, Health Management and Policy, Nara Medical University, Kashihara, Japan
| | - Hideyuki Kamijo
- Department of Social Security for Dentistry, Tokyo Dental College, Tokyo, Japan
| | - Naoki Sugihara
- Department of Epidemiology and Public Health, Tokyo Dental College, Tokyo, Japan
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Okazaki Y, Shimojo N, Matsuishi Y, Hoshino H, Ouchi A, Kawano S, Hoshino T, Koyama Y, Enomoto Y, Inoue Y. Risk factors for prolonged intensive care unit and hospital stay among patients with acute drug overdose in Japan. Acute Med Surg 2020; 7:e482. [PMID: 31988794 PMCID: PMC6971431 DOI: 10.1002/ams2.482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/25/2019] [Indexed: 11/17/2022] Open
Abstract
Aim Hospital selection for patients with drug overdose (DOD) is a critical issue. In Tokyo, the 50‐tablet rule has been widely utilized by paramedics for triaging patients with DOD given that it shortens the triage time. However, studies have not investigated the utility of such a rule in local cities. The present study aimed to identify prognostic pre‐ and in‐hospital factors among patients with DOD and determine whether the 50‐tablet rule benefits local cities. Methods Clinical records of patients with DOD admitted at the University of Tsukuba Hospital (Tsukuba, Japan) between 2013 and 2017 were retrospectively reviewed. Results A total of 93 patients with DOD were enrolled in this study. Multivariate analysis showed that creatine kinase and C‐reactive protein values and the total number of ingested pills were in‐hospital risk factors that significantly prolonged intensive care unit (ICU) and hospital stay. Moreover, Glasgow Coma Scale score on admission and the total number of ingested pills were identified as significant pre‐hospital risk factors for prolonged ICU and hospital stay. Setting the total number of ingested pills to 50 tablets did not significantly influence ICU and hospital stay. Conclusion The total number of ingested pills and creatine kinase and C‐reactive protein values were identified as predictive factors for prolonged ICU and hospital stay in patients with DOD after admission. Moreover, pre‐hospital risk factors included Glasgow Coma Scale score and the total number of ingested pills. However, the 50‐tablet rule was determined to be a poor cut‐off value for patients with DOD. We presented a subset of our findings at the 46th annual meeting of the Japanese Society for Acute Medicine (Yokohama, Japan) on 20 November 2018.
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Affiliation(s)
- Yuka Okazaki
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Nobutake Shimojo
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Yujiro Matsuishi
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Haruhiko Hoshino
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Akira Ouchi
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Satoru Kawano
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Tetsuya Hoshino
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Yasuaki Koyama
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Yuki Enomoto
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
| | - Yoshiaki Inoue
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba Tsukuba Ibaraki Japan
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Hirose N, Ishimaru M, Morita K, Yasunaga H. A review of studies using the Japanese National Database of Health Insurance Claims and Specific Health Checkups. ACTA ACUST UNITED AC 2020. [DOI: 10.37737/ace.2.1_13] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Naoki Hirose
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
| | - Miho Ishimaru
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
| | - Kojiro Morita
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
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Krishnaswami S, Mukhopadhyay S, McPheeters M, Nechuta SJ. Prescribing patterns before and after a non-fatal drug overdose using Tennessee's controlled substance monitoring database linked to hospital discharge data. Prev Med 2020; 130:105883. [PMID: 31704283 DOI: 10.1016/j.ypmed.2019.105883] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 10/04/2019] [Accepted: 11/04/2019] [Indexed: 01/08/2023]
Abstract
We performed a statewide evaluation of prescribing patterns of controlled substances (CS) before and after an overdose, using Tennessee's Hospital Discharge Data System and the Controlled Substance Monitoring Database (CSMD). Adults' first non-fatal overdose discharges either from the emergency department (ED) or inpatient (IP) stay occurring between 2013 and 2016 were linked to prescriptions in the CSMD. The difference in the proportion of patients filling a prescription before versus after an overdose was calculated. Included were 49,398 patients with an overdose and a prescription record; most (60.5%) were treated in the ED. Among any drug type overdose the percentage of patients who filled a CS prescription within a year of experiencing an overdose was as follows: opioid analgesics: 59.1%, benzodiazepines: 37.3%, stimulants: 5.0%, muscle relaxants: 3.4%, concurrent opioid-benzodiazepines: 24.0% with the percent difference from before to after similar in both settings. Among patients treated for an opioid overdose, this represented a decrease in opioid analgesics filled by 9.7% (95%CI: -11.2, -8.3) among those treated in the ED, and by 7.1% (95% CI: -8.3, -5.9) among treated inpatients. Among patients treated for a heroin overdose, 12.2% (95%CI: -15.2, -9.3) fewer of those treated in the ED and 8.8% (95%CI: -15.0, -2.7%) fewer of treated inpatients filled a CS prescription in that year. The most common opioid analgesics included hydrocodone and oxycodone. The number of patients filling buprenorphine for treatment increased in the year after overdoses associated with any drug or opioids but decreased among those treated for a heroin overdose.
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Affiliation(s)
- Shanthi Krishnaswami
- Tennessee Department of Health, Office of Informatics and Analytics, 710 James Robertson Parkway, Nashville, TN 37243, United States.
| | - Sutapa Mukhopadhyay
- Tennessee Department of Health, Office of Informatics and Analytics, 710 James Robertson Parkway, Nashville, TN 37243, United States
| | - Melissa McPheeters
- Tennessee Department of Health, Office of Informatics and Analytics, 710 James Robertson Parkway, Nashville, TN 37243, United States; Departments of Health Policy and Biomedical Informatics, Vanderbilt University Medical Center, 2525 West End Avenue, 408B, Nashville, TN 37203, United States
| | - Sarah J Nechuta
- Tennessee Department of Health, Office of Informatics and Analytics, 710 James Robertson Parkway, Nashville, TN 37243, United States; Department of Public Health, Grand Valley State University, 500 Lafayette Ave Northeast, Grand Rapids, MI 49503, United States
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Kawamata M, Iseki M, Kawakami M, Yabuki S, Sasaki T, Ishida M, Nishiyori A, Hida H, Kikuchi SI. Efficacy And Safety Of Controlled-Release Oxycodone For The Management Of Moderate-To-Severe Chronic Non-Cancer Pain In Japanese Patients: Results From An Open-Label Study. J Pain Res 2019; 12:3423-3436. [PMID: 31920367 PMCID: PMC6934115 DOI: 10.2147/jpr.s210502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 10/19/2019] [Indexed: 01/20/2023] Open
Abstract
Purpose To assess the efficacy and safety of S-8117, an oral, controlled-release formulation of oxycodone hydrochloride, in Japanese patients with chronic non-cancer pain (CNCP). Patients and methods In this multicenter, non-randomized, open-label, 2-part (part 1, dose-titration followed by maintenance period; part 2, long-term administration period) study at 38 centers in Japan (2013-2015), adult patients with CNCP for ≥12 weeks were administered S-8117. The primary endpoint was proportion of patients with successful maintenance of pain control in part 1 and long-term safety in part 2. Secondary endpoints included time to inadequate analgesia, rate of transition to the maintenance period, and discontinuation due to inadequate analgesia/adverse events (AEs), Brief Pain Inventory (BPI) pain severity, BPI pain interference, 36-item Short Form Health Survey (SF-36) score, and Western Ontario and McMaster Universities (WOMAC) index, Subjective Opioid Withdrawal Scale (SOWS), Clinical Opioid Withdrawal Scale (COWS), Dependency-2-A (D-2-A), and Dependency-2-B (D-2-B) questionnaires. Results Of 130 patients (mean age, 63.6 years; women, 62.3%) in the dose-titration period, 95 entered the maintenance period; 60 of 83 who entered the long-term administration period completed it. The proportion of patients (95% confidence interval) with successful maintenance of pain control, transition to maintenance period, and discontinuation due to inadequate analgesia/AEs was 78.9% (69.4-86.6), 73.1% (64.6-80.5), and 21.1% (13.4-30.6), respectively. Time to inadequate analgesia could not be estimated. Changes from baseline in BPI, SF-36, and WOMAC index scores suggested improvements in pain relief and quality of life. Based on the SOWS, COWS, D-2-A and D-2-B questionnaires, no patient developed clinically relevant withdrawal syndrome or was ascertained to have developed drug dependence. Overall, the incidence of treatment-emergent AEs (TEAEs) was 93.8%; most common TEAEs were constipation (49.2%), nausea (42.3%), nasopharyngitis (34.6%), and somnolence (32.3%). Conclusion These results demonstrate the efficacy and safety of S-8117 in Japanese patients with CNCP.
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Affiliation(s)
- Mikito Kawamata
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Masako Iseki
- Department of Anesthesiology and Pain Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Mamoru Kawakami
- Spine Care Center, Wakayama Medical University Kihoku Hospital, Wakayama, Japan
| | - Shoji Yabuki
- Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Takuma Sasaki
- Clinical Development Department, Shionogi & Co., Ltd., Osaka, Japan
| | - Mitsuhiro Ishida
- Clinical Development Department, Shionogi & Co., Ltd., Osaka, Japan
| | | | - Hideaki Hida
- Biostatistics Center, Shionogi & Co., Ltd., Osaka, Japan
| | - Shin-Ichi Kikuchi
- Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
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Tsutsumi H, Yonemitsu K, Sasao A, Ohtsu Y, Furukawa S, Nishitani Y. Cerebrospinal fluid neurotransmitter levels and central nervous system depression in a rat drug overdose model. Toxicol Mech Methods 2019; 30:139-145. [DOI: 10.1080/15376516.2019.1672122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Hiroshi Tsutsumi
- Department of Forensic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kosei Yonemitsu
- Department of Forensic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Ako Sasao
- Department of Forensic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuki Ohtsu
- Department of Forensic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Shota Furukawa
- Department of Forensic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoko Nishitani
- Department of Forensic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Okumura Y, Sakata N, Tachimori H, Takeshima T. Geographical Variation in Psychiatric Admissions Among Recipients of Public Assistance. J Epidemiol 2019; 29:264-271. [PMID: 30249947 PMCID: PMC6556440 DOI: 10.2188/jea.je20180066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Understanding the area-specific resource use of inpatient psychiatric care is essential for the efficient use of the public assistance system. This study aimed to assess the geographical variation in psychiatric admissions and to identify the prefecture-level determinants of psychiatric admissions among recipients of public assistance in Japan. METHODS We identified all recipients of public assistance who were hospitalized in a psychiatric ward in May 2014, 2015, or 2016 using the Fact-finding Survey on Medical Assistance. The age- and sex-standardized number of psychiatric admissions was calculated for each of the 47 prefectures, using direct and indirect standardization methods. RESULTS A total of 46,559 psychiatric inpatients were identified in May 2016. The number of psychiatric admissions per 100,000 population was 36.6. We found a 7.1-fold difference between the prefectures with the highest (Nagasaki) and lowest (Nagano) numbers of admissions. The method of decomposing explained variance in the multiple regression model showed that the number of psychiatric beds per 100,000 population and the number of recipients of public assistance per 1,000 population were the most important determinants of the number of psychiatric admissions (R2 = 28% and R2 = 23%, respectively). The sensitivity analyses, using medical cost as the outcome and data from different survey years and subgroups, showed similar findings. CONCLUSIONS We identified a large geographical variation in the number and total medical cost of psychiatric admissions among recipients of public assistance. Our findings should encourage policy makers to assess the rationale for this variation and consider strategies for reducing it.
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Affiliation(s)
- Yasuyuki Okumura
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare.,Department of Psychiatry and Behavioral Science, Tokyo Metropolitan Institute of Medical Science
| | - Nobuo Sakata
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare
| | - Hisateru Tachimori
- National Institute of Mental Health, National Center of Neurology and Psychiatry
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Haoka T, Sakata N, Okamoto H, Oshiro A, Shimizu T, Naito Y, Onishi S, Morishita Y, Nara S. Intentional or unintentional drug poisoning in elderly people: retrospective observational study in a tertiary care hospital in Japan. Acute Med Surg 2019; 6:252-258. [PMID: 31304026 PMCID: PMC6603315 DOI: 10.1002/ams2.403] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/02/2019] [Indexed: 11/10/2022] Open
Abstract
Aim Intentional or unintentional acute drug poisoning occurs even in elderly people, but little is known about the factors influencing the intention to poisoning. A retrospective study was undertaken to describe the characteristics of acute drug poisoning in elderly people according to whether the poisoning was intentional or unintentional and the responsible agents. Methods The study was carried out in a single tertiary hospital in Japan. A total of 145 patients aged ≥65 years who were transferred by an ambulance service and were diagnosed with acute drug poisoning were included. Medical records were used to collect information on the intention behind poisoning and the responsible agents. Patients were divided into two groups according to whether they experienced intentional or unintentional poisoning and were further classified according to the responsible agent. Multivariable logistic regression models were used to estimate the association between hospitalization for acute drug poisoning and the use of benzodiazepine receptor agonists (BzRAs). Results Poisoning was unintentional in 102 (70.3%) patients and intentional in 43 (29.7%) patients. In total, 65 (44.8%) patients required hospitalization. Among patients in the unintentional poisoning group, those using non‐BzRAs were more likely to be hospitalized than those using BzRAs (odds ratio, 6.64; 95% confidence interval, 2.56–17.22). The length of hospital stay was significantly longer in the unintentional poisoning group than in the intentional poisoning group (13.9 vs. 6.2 days; P = 0.013). Conclusions The proportion of unintentional poisoning in the elderly is high, and particularly with respect to poisoning with non‐BzRAs, the hospitalization rates are high.
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Affiliation(s)
- Takeshi Haoka
- Urawa Neuropsychiatric Sanatorium Saitama Japan.,The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan
| | - Nobuo Sakata
- Research Department Institute for Health Economics and Policy Association for Health Economics Research and Social Insurance and Welfare Minato-ku Japan
| | - Hiroyuki Okamoto
- The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan
| | - Akiko Oshiro
- The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan
| | - Takafumi Shimizu
- The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan
| | - Yuki Naito
- The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan.,Chitose City Hospital Chitose Japan
| | - Shinsuke Onishi
- The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan
| | - Yuka Morishita
- The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan
| | - Satoshi Nara
- The Emergency and Critical Care Medical Center Teine Keijinkai Hospital Sapporo Japan
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van Beusekom I, Bakhshi-Raiez F, de Keizer NF, de Lange DW. The healthcare costs of intoxicated patients who survive ICU admission are higher than non-intoxicated ICU patients: a retrospective study combining healthcare insurance data and data from a Dutch national quality registry. BMC Emerg Med 2019; 19:6. [PMID: 30634921 PMCID: PMC6329083 DOI: 10.1186/s12873-019-0224-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 01/07/2019] [Indexed: 11/16/2022] Open
Abstract
Background The aim of this study was to describe the healthcare costs of intoxicated ICU patients in the year before and the year after ICU admission, and to compare their healthcare costs with non-intoxicated ICU patients and a population based control group. Methods We conducted a retrospective cohort study, combining a national health insurance claims database and a national quality registry database for ICUs. Claims data in the timeframe 2012 until 2014 were combined with the clinical data of patients who had been admitted to an ICU during 2013. Three study populations were compared and matched according to socioeconomic status, type of admission, age and gender: an “ICU population”, an “intoxication population” and a “control population” (who had never been on the ICU). Results 2591 individual “intoxicated ICU patients” were compared to 2577 general “ICU patients” and 2591 patients from the “control population”. The median and interquartile ranges (IQR) healthcare costs per day alive for the “intoxicated ICU patients” were higher during the year before ICU admission (€20.3 (IQR €3.6–€76.4)) and the year after ICU admission (€23.9 (IQR €5.1–€82.4)) compared to the ICU population (€6.1 (IQR €0.9–€29.3) and €13.6 (IQR €3.3–€54.9) respectively) and a general control population (€1.1 (IQR €0.3–€4.6) and €1.1 (IQR €0.4–€4.9) respectively). The healthcare associated costs in intoxicated ICU patients were correlated with the number of chronic conditions present prior ICU admission (p < 0.0001). Conclusions Intoxicated patients admitted to the ICU had in the year before and after ICU admission much higher median healthcare costs per day alive compared to other ICU patients and a general population control group. Healthcare costs are greatly influenced by the number of psychiatric and other chronic conditions of these intoxicated patients. Electronic supplementary material The online version of this article (10.1186/s12873-019-0224-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ilse van Beusekom
- Department of Medical Informatics, Amsterdam Public Health research institute, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands.,National Intensive Care Evaluation (NICE) Foundation, Amsterdam, the Netherlands
| | - Ferishta Bakhshi-Raiez
- Department of Medical Informatics, Amsterdam Public Health research institute, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands.,National Intensive Care Evaluation (NICE) Foundation, Amsterdam, the Netherlands
| | - Nicolette F de Keizer
- Department of Medical Informatics, Amsterdam Public Health research institute, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands.,National Intensive Care Evaluation (NICE) Foundation, Amsterdam, the Netherlands
| | - Dylan W de Lange
- Dutch Poisons Information Center (DPIC), University Medical Center, University Utrecht, Utrecht, the Netherlands. .,Department of Intensive Care, University Medical Center, University Utrecht, Utrecht, the Netherlands.
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35
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Kojima Y, Yokoya S, Kurita N, Idaka T, Ishikawa T, Tanaka H, Ezawa Y, Ohto H. Cryptorchidism after the Fukushima Daiichi Nuclear Power Plant accident:causation or coincidence? Fukushima J Med Sci 2019; 65:76-98. [PMID: 31915325 PMCID: PMC7012587 DOI: 10.5387/fms.2019-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 11/14/2019] [Indexed: 01/20/2023] Open
Abstract
Cryptorchidism (undescended testes) is among the most common congenital diseases in male children. Although many factors have been linked to the incidence of cryptorchidism, and testicular androgen plays a key role in its pathogenesis, the cause remains unknown in most cases. Recently, a Japanese group published a speculative paper entitled, "Nationwide increase in cryptorchidism after the Fukushima nuclear accident." Although the authors implicated radionuclides emitted from the Fukushima accident as contributing to an increased incidence of cryptorchidism, they failed to establish biological plausibility for their hypothesis, and glossed over an abundance of evidence and expert opinion to the contrary. We assessed the adequacy of their study in terms of design setting, data analysis, and its conclusion from various perspectives. Numerous factors must be considered, including genetic, environmental, maternal/fetal, and social factors associated with the reporting of cryptorchidism. Other investigators have established that the doses of external and internal radiation exposure in both Fukushima prefecture and the whole of Japan after the accident are too low to affect testicular descent during fetal periods;thus, a putative association can be theoretically and empirically rejected. Alternative explanations exist for the reported estimates of increased cryptorchidism surgeries in the years following Japan's 2011 earthquake, tsunami, and nuclear crisis. Data from independent sources cast doubt on the extent to which cryptorchidism increased, if at all. In any case, evidence that radionuclides from the Fukushima Daiichi Nuclear Power Plant could cause cryptorchidism is lacking.
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Affiliation(s)
- Yoshiyuki Kojima
- Department of Urology, Fukushima Medical University School of Medicine
| | - Susumu Yokoya
- Thyroid and Endocrine Center, Fukushima Medical University School of Medicine
| | - Noriaki Kurita
- Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University
- Department of Innovative Research and Education for Clinicians and Trainees (DiRECT), Fukushima Medical University Hospital
- Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University
| | - Takayuki Idaka
- Medical Research Center, Fukushima Medical University School of Medicine
| | - Tetsuo Ishikawa
- Department of Radiation Physics and Chemistry, Fukushima Medical University
| | - Hideaki Tanaka
- Department of Pediatric Surgery, Fukushima Medical University Hospital
| | - Yoshiko Ezawa
- Medical Affairs Division, Fukushima Medical University Hospital
| | - Hitoshi Ohto
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University
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36
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Timely follow-up visits after psychiatric hospitalization and readmission in schizophrenia and bipolar disorder in Japan. Psychiatry Res 2018; 270:490-495. [PMID: 30326432 DOI: 10.1016/j.psychres.2018.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 10/08/2018] [Accepted: 10/08/2018] [Indexed: 11/22/2022]
Abstract
The study objective was to investigate the association between timely follow-up visits after psychiatric hospitalization and the risk of readmission in patients with schizophrenia or bipolar disorder. A retrospective cohort study was conducted using a nationwide claims database in Japan. Between April 2014 and March 2015, all psychiatric hospitalization data were obtained and patients with a principal diagnosis of schizophrenia or bipolar disorder were followed up from 180 days before admission to 210 days after discharge. The primary outcome of this study was psychiatric readmission during the 180-day period (between 31 and 210 days) after the index discharge. A total of 48,579 eligible patients were identified. After psychiatric hospitalization, 15% of patients received no follow-up visits to a psychiatrist within 30 days. Patients who received follow-up visits had lower readmission rates during the subsequent 180 days (21.7% vs. 37.5%; adjusted risk ratio, 0.54 [95% confidence interval, 0.52-0.57]) than those who did not. Timely follow-up visits after discharge could be helpful for reducing the readmission risk in patients.
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Ando T, Ooba N, Mochizuki M, Koide D, Kimura K, Lee SL, Setoguchi S, Kubota K. Positive predictive value of ICD-10 codes for acute myocardial infarction in Japan: a validation study at a single center. BMC Health Serv Res 2018; 18:895. [PMID: 30477501 PMCID: PMC6260564 DOI: 10.1186/s12913-018-3727-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 11/16/2018] [Indexed: 12/02/2022] Open
Abstract
Background In Japan, several large healthcare databases have become available for research since the early 2000’s. However, validation studies to examine the accuracy of these databases remain scarce. We conducted a validation study in order to estimate the positive predictive value (PPV) of local or ICD-10 codes for acute myocardial infarction (AMI) in Japanese claims. In particular, we examined whether the PPV differs between claims in the Diagnosis Procedure Combination case mix scheme (DPC claims) and in non-DPC claims. Methods We selected a random sample of 200 patients from all patients hospitalized at a large tertiary-care university hospital between January 1, 2009 and December 31, 2011 who had an inpatient claim assigned a local or ICD-10 code for AMI. We used a standardized data abstraction form to collect the relevant information from an electronic medical records system. Abstracted information was then categorized by a single cardiologist as being either definite or not having AMI. Results In a random sample of 200 patients, the average age was 67.7 years and the proportion of males was 78.0%. The PPV of the local or ICD-10 code for AMI was 82.5% in this sample of 200 patients. Further, of 178 patients who had an ICD-10 code for AMI based on any of the 7 types of condition codes in the DPC claims, the PPV was 89.3%, whereas of the 161 patients who had an ICD-10 code for AMI based on any of 3 major types of condition codes in the DPC claims, the PPV was 93.8%. Conclusion The PPV of the local or ICD-10 code for AMI was high for inpatient claims in Japan. The PPV was even higher for the ICD-10 code for AMI for those patients who received AMI care through the DPC case mix scheme. The current study was conducted in a single center, suggesting that a multi-center study involving different types of hospitals is needed in the future. The accuracy of condition codes for DPC claims in Japan may also be worth examining for conditions other than AMI such as stroke.
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Affiliation(s)
- Takashi Ando
- Division of Evaluation and Analysis of Drug Information, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Nobuhiro Ooba
- Department of Clinical Pharmacy, Nihon University School of Pharmacy, Chiba, Japan
| | - Mayumi Mochizuki
- Division of Evaluation and Analysis of Drug Information, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Daisuke Koide
- Department of Biostatistics & Bioinformatics Graduate School of Medicine The University of Tokyo, Tokyo, Japan
| | - Koichi Kimura
- Departments of Advanced Medical Science, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Seitetz L Lee
- Department of Cardiovascular Medicine, University of Tokyo, Tokyo, Japan
| | | | - Kiyoshi Kubota
- NPO Drug Safety Research Unit Japan, Yushima 1-2-13-4F, Bunkyo-ku, Tokyo, 114-0002, Japan.
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38
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Pérez-Mañá C, Papaseit E, Fonseca F, Farré A, Torrens M, Farré M. Drug Interactions With New Synthetic Opioids. Front Pharmacol 2018; 9:1145. [PMID: 30364252 PMCID: PMC6193107 DOI: 10.3389/fphar.2018.01145] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 09/21/2018] [Indexed: 12/31/2022] Open
Abstract
Fentanyl, fentanyl analogs, and other new synthetic opioids (NSO) have burst onto the illegal drug market as new psychoactive substances (NPS). They are often sold as heroin to unsuspecting users and produce euphoria through their agonist action on μ- opioid receptors. Their high consumption, often combined with other substances, has led to multiple intoxications during recent years. In some countries, such as the United States, the consumption of opioids, whether for medical or recreational purposes, has become epidemic and is considered a public health problem. Fentanyl analogs are more potent than fentanyl which in turn is 50 times more potent than morphine. Furthermore, some fentanyl analogs have longer duration of action and therefore interactions with other substances and medicines can be more serious. This review is focused on the potentially most frequent interactions of opioid NPS taking into account the drugs present in the reported cases of poly-intoxication, including other illegal drugs of abuse and medication. Substances involved are mainly antidepressants, antihistamines, antipsychotics, benzodiazepines, analgesics, anesthetics, psychostimulants, other opioids, alcohol, and illegal drugs of abuse. The interactions can be produced due to pharmacokinetic and pharmacodynamic mechanisms. Naloxone can be used as an antidote, although required doses might be higher than for traditional opioid intoxications. It is crucial that doctors who habitually prescribe opioids, which are often misused by patients and NPS users, be aware of designer opioids' potentially life-threatening drug-drug interactions in order to prevent new cases of intoxication.
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Affiliation(s)
- Clara Pérez-Mañá
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol (HUGTP-IGTP), Badalona, Spain
- Department of Pharmacology, Therapeutics and Toxicology, Autonomous University of Barcelona, Barcelona, Spain
| | - Esther Papaseit
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol (HUGTP-IGTP), Badalona, Spain
- Department of Pharmacology, Therapeutics and Toxicology, Autonomous University of Barcelona, Barcelona, Spain
| | - Francina Fonseca
- Drug Addiction Unit, Institute of Neuropsychiatry and Addictions, Hospital del Mar Medical Research Institute, Barcelona, Spain
- Department of Psychiatry and Legal Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Adriana Farré
- Drug Addiction Unit, Institute of Neuropsychiatry and Addictions, Hospital del Mar Medical Research Institute, Barcelona, Spain
- Department of Psychiatry and Legal Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Marta Torrens
- Drug Addiction Unit, Institute of Neuropsychiatry and Addictions, Hospital del Mar Medical Research Institute, Barcelona, Spain
- Department of Psychiatry and Legal Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Magi Farré
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol (HUGTP-IGTP), Badalona, Spain
- Department of Pharmacology, Therapeutics and Toxicology, Autonomous University of Barcelona, Barcelona, Spain
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Okumura Y, Sugiyama N, Noda T, Tachimori H. Psychiatric Admissions and Length of Stay During Fiscal Years 2014 and 2015 in Japan: A Retrospective Cohort Study Using a Nationwide Claims Database. J Epidemiol 2018; 29:288-294. [PMID: 30224579 PMCID: PMC6614081 DOI: 10.2188/jea.je20180096] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background A better understanding of resource use of new psychiatric admissions is important for healthcare providers and policymakers to improve psychiatric care. This study aims to describe the pattern of new psychiatric admissions and length of stay in Japan. Methods A retrospective cohort study was conducted using data from the National Database of Health Insurance Claims and Specific Health Checkups of Japan (NDB). All patients newly admitted to psychiatric wards from April 2014 through March 2016 were included and followed up until discharge to the community. Results Our sample included 605,982 admissions from 1,621 hospitals over 2 years. The average monthly number of admissions was 25,024 in fiscal year 2014 and 25,475 in fiscal year 2015. There was a seasonal trend in the number of admissions, with a peak in summer (in July). The discharge rates within 90 days and 360 days were 64.1% and 85.7%, respectively, and varied by type of hospital fee and by hospital. For example, the range of hospital-level discharge rate within 90 days in psychiatric emergency units was 46.0–75.3% in the 1st (lowest) quintile, while it was 83.6–96.0% in the 5th (highest) quintile. The prefecture-level indicators in the NDB and the 630 survey had correlations of >0.70. Conclusions Our study provides fundamental information on resource use of new psychiatric admissions in Japan. Although using the NDB has substantial benefits in monitoring resource use, the results should be interpreted with some caution owing to methodological issues inherent in the database.
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Affiliation(s)
- Yasuyuki Okumura
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare.,Department of Psychiatry and Behavioral Science, Tokyo Metropolitan Institute of Medical Science
| | | | | | - Hisateru Tachimori
- National Institute of Mental Health, National Center of Neurology and Psychiatry
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40
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Okumura Y, Usami M, Okada T, Saito T, Negoro H, Tsujii N, Fujita J, Iida J. Glucose and Prolactin Monitoring in Children and Adolescents Initiating Antipsychotic Therapy. J Child Adolesc Psychopharmacol 2018; 28:454-462. [PMID: 29889543 PMCID: PMC6154762 DOI: 10.1089/cap.2018.0013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE We aimed to evaluate glucose and prolactin monitoring in children and adolescents initiating antipsychotic therapy using a nationwide claims database. METHODS A retrospective 15-month cohort study was conducted using the National Database of Health Insurance Claim Information and Specified Medical Checkups in Japan. Patients aged ≤18 years, who were newly prescribed antipsychotics between April 2014 and March 2015, were followed up for 450 days. Outcomes were the use of glucose and prolactin testing through 15 months after drug initiation (index date) with consideration of persistence with antipsychotic therapy. The incidence proportion of patients monitored was assessed within the following four time windows: baseline (between 30 days before the index date and the index date), at 1-3 months (between 1 and 90 days after the index date), at 4-9 months (between 91 and 270 days after the index date), and at 10-15 months (between 271 and 450 days after the index date). RESULTS Of 43,608 new users in 6620 medical institutions, the percentage of persistent antipsychotic users was 46.4% at 90 days, 29.7% at 270 days, and 23.8% at 450 days after the index date. The proportion of patients who received monitoring within the baseline period was 13.5% (95% confidence interval [CI], 13.2-13.8) for glucose and 0.6% (95% CI, 0.5-0.6) for prolactin, respectively. The proportion of patients who received glucose monitoring at all time windows decreased to 0.9%. The proportion of patients who received prolactin monitoring by the second time window decreased to 0.1%. CONCLUSIONS Our study shows that monitoring for glucose and prolactin is infrequent in children and adolescents initiating antipsychotic therapy. Strategies for physicians, patients, and guardians are needed to overcome the barriers in glucose and prolactin monitoring.
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Affiliation(s)
- Yasuyuki Okumura
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo, Japan
- Department of Psychiatry and Behavioral Science, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Masahide Usami
- Department of Child and Adolescent Psychiatry, Kohnodai Hospital, National Center for Global Health and Medicine, Ichikawa, Japan
| | - Takashi Okada
- Department of Child and Adolescent Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takuya Saito
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Hideki Negoro
- Department of Professional Development in Education, Graduate School of Professional Development in Education, Nara University of Education, Nara, Japan
| | - Noa Tsujii
- Department of Neuropsychiatry, Kindai University Faculty of Medicine, Osaka, Japan
| | - Junichi Fujita
- Department of Child Psychiatry, Yokohama City University Hospital, Yokohama, Japan
| | - Junzo Iida
- Department of Human Development, Faculty of Nursing, Nara Medical University, Kashihara, Japan
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Ishimaru M, Matsui H, Ono S, Hagiwara Y, Morita K, Yasunaga H. Preoperative oral care and effect on postoperative complications after major cancer surgery. Br J Surg 2018; 105:1688-1696. [DOI: 10.1002/bjs.10915] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/26/2018] [Accepted: 05/17/2018] [Indexed: 01/30/2023]
Abstract
Abstract
Background
Improving patients' oral hygiene is an option for preventing postoperative pneumonia that may be caused by aspiration of oral and pharyngeal secretions. Whether preoperative oral care by a dentist can decrease postoperative complications remains controversial. A retrospective cohort study was undertaken to assess the association between preoperative oral care and postoperative complications among patients who underwent major cancer surgery.
Methods
The nationwide administrative claims database in Japan was analysed. Patients were identified who underwent resection of head and neck, oesophageal, gastric, colorectal, lung or liver cancer between May 2012 and December 2015. The primary outcomes were postoperative pneumonia and all-cause mortality within 30 days of surgery. Patient background was adjusted for with inverse probability of treatment weighting using propensity scoring.
Results
Of 509 179 patients studied, 81 632 (16·0 per cent) received preoperative oral care from a dentist. A total of 15 724 patients (3·09 per cent) had postoperative pneumonia and 1734 (0·34 per cent) died within 30 days of surgery. After adjustment for potential confounding factors, preoperative oral care by a dentist was significantly associated with a decrease in postoperative pneumonia (3·28 versus 3·76 per cent; risk difference − 0·48 (95 per cent c.i. −0·64 to−0·32) per cent) and all-cause mortality within 30 days of surgery (0·30 versus 0·42 per cent; risk difference − 0·12 (−0·17 to −0·07) per cent).
Conclusion
Preoperative oral care by a dentist significantly reduced postoperative complications in patients who underwent cancer surgery.
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Affiliation(s)
- M Ishimaru
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - H Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - S Ono
- Department of Biostatistics and Bioinformatics, University of Tokyo, Tokyo, Japan
| | - Y Hagiwara
- Department of Biostatistics, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - K Morita
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - H Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, University of Tokyo, Tokyo, Japan
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Sakata N, Okumura Y. Thyroid function tests before prescribing anti-dementia drugs: a retrospective observational study. Clin Interv Aging 2018; 13:1219-1223. [PMID: 30013333 PMCID: PMC6038886 DOI: 10.2147/cia.s168182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Purpose Treatable causes of cognitive dysfunction, such as hypothyroidism, should be excluded by physicians before prescribing anti-dementia drugs. Many clinical guidelines for dementia recommend a thyroid function test (TFT) as one of the standard screening tests for cognitive dysfunction. This study aimed to investigate the national implementation rate of TFTs during the 365 days before the initiation of anti-dementia drugs. Patients and methods In this retrospective observational study, using Japan’s nationwide claim database, we enrolled ≥65-year-old patients who were newly prescribed anti-dementia drugs between April 2015 and March 2016. The outcome of this study was the implementation of TFTs in the 365 days prior to the index date. We used demographic data, including age, sex, comorbidities, home-based/institutional care, and provider type, as covariates. Results We identified 262,279 patients newly prescribed anti-dementia drugs; of these, only 32.6% underwent TFTs before the initiation of anti-dementia drug treatment. Patients treated in dementia care centers were twice as likely to undergo TFTs as those treated in clinics (57% vs 26%; adjusted risk ratio: 2.17; 95% confidence interval: 2.01–2.33). Conclusion In Japan, patients with dementia often do not undergo TFTs before being prescribed anti-dementia drugs, particularly in a primary care setting. This suggests that the practice of screening treatable cognitive dysfunction should be audited.
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Affiliation(s)
- Nobuo Sakata
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo, Japan,
| | - Yasuyuki Okumura
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo, Japan, .,Department of Psychiatry and Behavioral Science, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan,
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43
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Sedative hypnotics overdose: Epidemiology, diagnosis and management. INDIAN JOURNAL OF MEDICAL SPECIALITIES 2018. [DOI: 10.1016/j.injms.2018.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Okumura Y, Sugiyama N, Noda T, Sakata N. Association of high psychiatrist staffing with prolonged hospitalization, follow-up visits, and readmission in acute psychiatric units: a retrospective cohort study using a nationwide claims database. Neuropsychiatr Dis Treat 2018; 14:893-902. [PMID: 29636614 PMCID: PMC5880415 DOI: 10.2147/ndt.s160176] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND The effects of psychiatrist staffing are unclear. The aim of this study was to assess the association of high psychiatrist staffing with prolonged hospitalization, follow-up visits, and readmission in acute psychiatric units. METHODS A retrospective cohort study was conducted using the National Database of Health Insurance Claim Information and Specified Medical Checkups. Patients newly admitted to acute psychiatric units between October 2014 and September 2015 were followed up until September 2016. The primary exposure was a patient-to-psychiatrist ratio of 16:1 (high-staffing units) vs 48:1 (low-staffing units). Outcomes were prolonged hospitalization of >90 days, number of follow-up psychiatric visits within 90 days after discharge, and psychiatric readmission within 90 days after discharge. Incidence rate ratios (IRRs) and their 95% confidence intervals (CIs) were estimated by using generalized estimating equations, adjusting for potential covariates. RESULTS Among the 24,678 newly admitted patients at 190 hospitals, 13,138 patients (53.2%) were admitted to high-staffing units in 92 hospitals. After adjustment, high-staffing units were associated with a lower risk of prolonged hospitalization (incidence rate, 16.9 vs 21.3%; IRR, 0.79 [95% CI, 0.70, 0.89]), higher number of follow-up visits (incidence rate of ≥7 visits, 16.9 vs 13.4%; IRR, 1.06 [95% CI, 1.01, 1.12]), and lower risk of readmission (incidence rate, 13.0 vs 14.4%; IRR, 0.90 [95% CI, 0.82, 0.99]). CONCLUSION High-staffing units are associated with a reduced risk of prolonged hospitalization and readmission and an increased number of follow-up visits. Further research is needed to improve the generalizability of these findings and establish the optimal level of staffing.
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Affiliation(s)
- Yasuyuki Okumura
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo, Japan
| | - Naoya Sugiyama
- Numazu Chuo Hospital, Fukkokai Foundation, Shizuoka, Japan
| | - Toshie Noda
- Atami Chuo Clinic, Fukkokai Foundation, Shizuoka, Japan
| | - Nobuo Sakata
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo, Japan
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Okumura Y, Nishi D. Risk of recurrent overdose associated with prescribing patterns of psychotropic medications after nonfatal overdose. Neuropsychiatr Dis Treat 2017; 13:653-665. [PMID: 28293108 PMCID: PMC5342613 DOI: 10.2147/ndt.s128278] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE We aimed to estimate risk of recurrent overdose associated with psychosocial assessment by psychiatrists during hospitalization for nonfatal overdose and prescribing patterns of psychotropic medications after discharge. METHODS A retrospective cohort study was conducted using a nationwide claims database in Japan. We classified patients aged 19-64 years hospitalized for nonfatal overdose between October 2012 and September 2013 into two cohorts: 1) those who had consulted a psychiatrist prior to overdose (n=6,790) and 2) those who had not (n=4,950). All patients were followed up from 90 days before overdose until 365 days after discharge. RESULTS Overall, 15.3% of patients with recent psychiatric treatment had a recurrent overdose within 365 days, compared with 6.0% of those without psychiatric treatment. Psychosocial assessment during hospital admission had no significant effect on subsequent overdose, irrespective of treatment by psychiatrists before overdose. There was a dose-response relationship for the association of benzodiazepine prescription after overdose with subsequent overdose in either cohort, even after accounting for average daily dosage of benzodiazepines before overdose and other confounders. In patients with recent psychiatric treatment, the cumulative proportion of recurrent overdose at 365 days was 27.7% for patients receiving excessive dosages of benzodiazepines, 22.0% for those receiving high dosages, 15.3% for those receiving normal dosages, and 7.6% for those receiving no benzodiazepines. In patients without psychiatric treatment, the cumulative proportion of recurrent overdose at 365 days was 24.3% for patients receiving excessive dosages of benzodiazepines, 18.0% for those receiving high dosages, 9.0% for those receiving normal dosages, and 4.1% for those receiving no benzodiazepines. CONCLUSION Lower dose of benzodiazepines after overdose is associated with lower risk of subsequent overdose.
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Affiliation(s)
- Yasuyuki Okumura
- Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo
| | - Daisuke Nishi
- Department of Mental Health Policy and Evaluation, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Japan
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