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Hu S, Lin C, Cai X, Li Z, Lv F, Yang W, Ji L. Trends in baseline HbA1c and body-mass index in randomised placebo-controlled trials of type 2 diabetes from 1987 to 2022: a systematic review and meta-analysis. EClinicalMedicine 2023; 57:101868. [PMID: 36864984 PMCID: PMC9971277 DOI: 10.1016/j.eclinm.2023.101868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Curbing or reversing high glycated hemoglobin (HbA1c) and body mass index (BMI) are two essential parts in the clinical management of type 2 diabetes (T2D). We delineated the changing patterns of the baseline HbA1c and BMI in patients with T2D from placebo-controlled randomised trials to reflect the unmet clinical needs. METHODS PubMed, Medline, Embase and Cochrane Central Register of Controlled Trials (CENTRAL) databases were searched from inception to December 19, 2022. Placebo-controlled trials of T2D with reports of baseline HbA1c and BMI were included, of which summary data from published reports were extracted. Pooled effect sizes of baseline HbA1c and BMI of from studies published in the same year were computed in Random-effects model due to the high level of heterogeneity among studies. The main outcome was correlations between the pooled baseline HbA1c, the pooled baseline BMI, and study years. This study was registered in PROSPERO as CRD42022350482. FINDINGS We identified 6102 studies, of which 427 placebo-controlled trials with 261, 462 participants were finally included in the study. Baseline HbA1c level declined with time (Rs = -0.665, P < 0.0001, I2 = 99.4%). Baseline BMI increased over the past 35 years (R = 0.464, P = 0.0074, I2 = 99.4%), rising by around 0.70 kg/m2 per decade. Patients with BMI ≤25.0 kg/m2 dropped substantially from the half in 1996 to none in 2022. Patients with BMI ranging from 25 kg/m2 to 30 kg/m2 stabilized at 30-40% since 2000. INTERPRETATION A substantial decline in baseline HbA1c levels and a constant increase in baseline BMI levels was found in placebo-controlled trials through the past 35 years, which indicated the improvement in glycemic control and the urgency for the management of obesity in T2D. FUNDING National Natural Science Foundation of China (No.81970698), Beijing Natural Science Foundation (No.7202216) and National Natural Science Foundation of China (No.81970708).
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Affiliation(s)
| | | | - Xiaoling Cai
- Corresponding author. Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China.
| | | | | | | | - Linong Ji
- Corresponding author. Department of Endocrinology and Metabolism, Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, China.
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Bongaerts B, Kollhorst B, Kuss O, Pigeot I, Rathmann W. Dispensation Patterns of Glucose-Lowering Drugs in Newly Diagnosed Type 2 Diabetes: Routine Data Analysis of Insurance Claims in Germany. Exp Clin Endocrinol Diabetes 2021; 130:587-595. [PMID: 34942670 DOI: 10.1055/a-1702-5151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AIMS To describe dispensation patterns of glucose-lowering drugs in newly diagnosed type 2 diabetes in Germany. MATERIALS AND METHODS Based on claims data from four statutory health insurances (German Pharmacoepidemiological Research Database,>25 million insurants), all individuals with newly diagnosed type 2 diabetes were identified. Eligible patients had a first diagnosis for type 2 diabetes between January 2012 and December 2016. We analyzed the dispensation patterns of first-line glucose-lowering therapies initiated in the year after diabetes diagnosis and patterns of second-line therapies dispensed one year after first-line treatment. RESULTS A total of 356,647 individuals with newly diagnosed type 2 diabetes were included (average age [SD]: 63.5 [13.4] years; 49.3% males). Of the 31.6% of individuals who were pharmacologically treated in the year after diagnosis, metformin monotherapy was most frequently dispensed (73.1%), followed by dual therapy of metformin and dipeptidyl peptidase-4 inhibitors (DPP-4is) (6.4%), and monotherapy with DPP-4is (2.9%). From 2012 through 2016, sulfonylurea dispensations were reduced by more than 50%. Dispensations for combination therapies with DPP-4is increased up to 10.6%. Glucagon-like peptide-1 receptor agonists and sodium-glucose co-transporter-2 inhibitors contributed to 2% of all treatments. After a median of 5 months, 20.0% of individuals on pharmacological therapy initiated second-line glucose-lowering treatment. CONCLUSIONS Data from German statutory health insurances (2012 to 2016) showed that most individuals with newly diagnosed type 2 diabetes were dispensed metformin monotherapy in line with diabetes care guidelines. A substantial decrease in the use of sulfonylureas was observed after the introduction of DPP-4i and GLP-1 receptor agonists.
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Affiliation(s)
- Brenda Bongaerts
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,German Center for Diabetes Research (DZD e.V.), Partner Düsseldorf, München-Neuherberg, Germany
| | - Bianca Kollhorst
- Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany
| | - Oliver Kuss
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,German Center for Diabetes Research (DZD e.V.), Partner Düsseldorf, München-Neuherberg, Germany
| | - Iris Pigeot
- Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany.,University of Bremen, Faculty of Mathematics and Computer Science, Bremen, Germany
| | - Wolfgang Rathmann
- Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany.,German Center for Diabetes Research (DZD e.V.), Partner Düsseldorf, München-Neuherberg, Germany
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Feng L, Lam A, Carmody D, Lim CW, Tan G, Goh SY, Bee YM, Jafar TH. Trends in cardiovascular risk factors and treatment goals in patients with diabetes in Singapore-analysis of the SingHealth Diabetes Registry. PLoS One 2021; 16:e0259157. [PMID: 34748574 PMCID: PMC8575178 DOI: 10.1371/journal.pone.0259157] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/13/2021] [Indexed: 01/04/2023] Open
Abstract
Background Asian populations are at high risk of diabetes and related vascular complications. We examined risk factor control, preventive care, and disparities in these trends among adults with diabetes in Singapore. Methods The sample included 209,930 adults with diabetes aged≥18 years from a multi-institutional SingHealth Diabetes Registry between 2013 and 2019 in Singapore. We performed logistic generalized estimating equations (GEEs) regression analysis and used linear mixed effect modeling to evaluate the temporal trends. Results Between 2013 and 2019, the unadjusted control rates of glycated hemoglobin (4.8%, 95%CI (4.4 to 5.1) and low-density lipoprotein cholesterol (LDL-C) (11.5%, 95%CI (11.1 to 11.8)) improved, but blood pressure (BP) control worsened (systolic BP (SBP)/diastolic BP (DBP) <140/90 mmHg: -6.6%, 95%CI (-7.0 to -6.2)). These trends persisted after accounting for the demographics including age, gender, ethnicity, and housing type. The 10-year adjusted risk for coronary heart disease (CHD) (3.4%, 95% (3.3 to 3.5)) and stroke (10.4%, 95% CI (10.3 to 10.5)) increased. In 2019, the control rates of glycated hemoglobin, BP (SBP/DBP<140/90 mmHg), LDL-C, each, and all three risk factors together, accounted for 51.5%, 67.7%, 72.2%, and 24.4%, respectively. Conclusions Trends in risk factor control improved for glycated hemoglobin and LDL-C, but worsened for BP among diabetic adults in Singapore from 2013 to 2019. Control rates for all risk factors remain inadequate.
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Affiliation(s)
- Liang Feng
- Program in Health Services & Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - Amanda Lam
- Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
| | - David Carmody
- Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
| | - Ching Wee Lim
- Program in Health Services & Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - Gilbert Tan
- SingHealth Polyclinics, Singapore, Singapore
| | - Su-Yen Goh
- Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
| | - Yong Mong Bee
- Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
| | - Tazeen H. Jafar
- Program in Health Services & Systems Research, Duke-NUS Medical School, Singapore, Singapore
- Duke Global Health Institute, Durham, NC, United States of America
- * E-mail:
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Anti-seizure medication is not associated with an increased risk to develop cancer in epilepsy patients. J Neurol 2021; 268:2185-2191. [PMID: 33484324 PMCID: PMC8179889 DOI: 10.1007/s00415-020-10379-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 12/21/2022]
Abstract
Objective Whether anti-seizure medication (ASM) increases the risk for cancer has been debated for decades. While for some ASM, a carcinoma-promoting effect has been suspected, carcinoma-protective effects have been shown for other ASM. However, the issue remains unresolved as data from preclinical and clinical studies have been inconsistent and contradictory. Methods We collected anonymous patient data from practice neurologists throughout Germany between 2009 and 2018 using the IMS Disease Analyzer database (QuintilesIMS, Frankfurt, Germany). People with epilepsy (PWE) with an initial cancer diagnosis and antiepileptic therapy prior to the index date were 1:1 matched with a control group of PWE without cancer according to age, gender, index year, Charlson Comorbidity Index, and treating physician. For both groups, the risk to develop cancer under treatment with different ASMs was analyzed using three different models (ever use vs. never use (I), effect per one (II) and per five therapy years (III). Results A total of 3152 PWE were included (each group, n = 1,576; age = 67.3 ± 14.0 years). The risk to develop cancer was not significantly elevated for any ASM. Carbamazepine was associated with a decreased cancer risk (OR Model I: 0.699, p < .0001, OR Model II: 0.952, p = .4878, OR Model III: 0.758, p < .0004). Significance Our findings suggest that ASM use does not increase the risk of cancer in epilepsy patients. Supplementary Information The online version of this article (10.1007/s00415-020-10379-4) contains supplementary material, which is available to authorized users.
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van den Boom L, Kaiser M, Kostev K. Prevalence of insulin as a first-line therapy and associated factors in people with type 2 diabetes in German primary care practices. Diabet Med 2020; 37:1333-1339. [PMID: 32506471 DOI: 10.1111/dme.14338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/02/2020] [Indexed: 12/16/2022]
Abstract
AIM To evaluate how many people with type 2 diabetes receive a treatment regimen with insulin as a first-line therapy and the factors associated with this. METHODS This retrospective study was based on data from the Disease Analyzer database and included 10 497 people with type 2 diabetes with an initial prescription of anti-hyperglycaemic therapy from 859 general and diabetologist practices in Germany between January 2014 and December 2018. The main outcome of the study was the prevalence of insulin as a first-line therapy. A multivariable logistic regression model was performed to investigate the association between predefined variables and the probability of receiving insulin as a first-line therapy. RESULTS A total of 7.1% of participants received insulin as a first-line therapy. Diabetologist practice [odds ratio (OR) 2.71, 95% confidence interval (CI) 1.81-4.06], age > 80 years (OR 2.35, 95% CI 1.20-4.61) compared with age ≤ 40 years, HbA1c ≥ 86 mmol/mol (10%) (OR 2.99, 95% CI 1.81-4.95) compared with HbA1c < 48 mmol/mol (6.5%), renal complications (OR 1.91, 95% CI 1.29-2.81), peripheral artery disease (OR 1.94, 95% CI 1.30-2.81), neurological complications (OR 1.45, 95% CI 1.00-2.09), Charlson Comorbidity Index (OR 1.16, 95% CI 1.08-1.25) and higher number of different drugs prescribed within 12 months prior-the index date (OR 1.09, 95% CI 1.05-1.12) were significantly associated with the probability of receiving insulin as a first-line therapy. CONCLUSION Insulin is rarely used as a first-line therapy in people with type 2 diabetes. Furthermore, a person's likelihood of receiving insulin as a first-line therapy is significantly influenced by diabetologist practice, age, HbA1c ≥ 86 mmol/mol (10%), renal, neurological and vascular complications, higher multimorbidity, and polypharmacy.
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Affiliation(s)
| | - M Kaiser
- Diabetologische Schwerpunktpraxis, Frankfurt, Germany
| | - K Kostev
- Epidemiology, IQVIA, Frankfurt, Germany
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Tan YZ, Cheen MHH, Goh SY, Bee YM, Lim PS, Khee GY, Thumboo J. Trends in medication utilization, glycemic control and outcomes among type 2 diabetes patients in a tertiary referral center in Singapore from 2007 to 2017. J Diabetes 2019; 11:573-581. [PMID: 30556375 DOI: 10.1111/1753-0407.12886] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/08/2018] [Accepted: 12/04/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Use of glucose-lowering agents is a cornerstone in combating type 2 diabetes (T2DM). Treatment guidelines have changed significantly over the past decade. We report temporal trends in medication utilization, glycemic control and rate of severe hypoglycemia in T2DM patients at a tertiary referral center in Singapore. METHODS We analyzed data of 36 924 T2DM patients seen at Singapore General Hospital from 2007 to 2017. Annual age-, sex- and racially-standardized proportions of patients (a) prescribed with each class of glucose-lowering agent, (b) on various glucose-lowering regimens, and (c) had an HbA1c of less than 6%, 6% to less than 7%, 7% to less than 8%, 8% to less than 9%, or 9% or more were estimated using logistic regression. Poisson regression was used to estimate standardized rate of severe hypoglycemia. RESULTS From 2007 to 2017, use of metformin (45.9% to 59.6%) and insulin (24.4% to 57.9%) increased, while utilization of sulfonylureas (52.0% to 44.9%) decreased (all P < 0.001). Utilization of dipeptidyl peptidase-4 inhibitors (1.2% to 31.2%) and sodium-glucose cotransporter-2 inhibitors (0.5% to 7.4%) increased from 2008 to 2017 and 2012 to 2017, respectively (all P < 0.001). More patients were prescribed a combination of insulin and oral agents (17.3% to 46.0%, P < 0.001). The proportion of patients with HbA1c of 8% or more increased (33.7% to 36.0%, P < 0.001). Rates of severe hypoglycemia (5.0 to 8.4 per 100 patient-years, P < 0.001) also rose. CONCLUSION Medication utilization patterns have changed significantly over the past 11 years with a shift towards newer agents. Glycemic control has remained stable, and rate of severe hypoglycemia increased. Further analysis is required before causal relationships can be inferred.
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Affiliation(s)
- Yan Zhi Tan
- Department of Pharmacy, Singapore General Hospital, Singapore
| | | | - Su-Yen Goh
- Department of Endocrinology, Singapore General Hospital, Singapore
| | - Yong Mong Bee
- Department of Endocrinology, Singapore General Hospital, Singapore
| | - Paik Shia Lim
- Department of Pharmacy, Singapore General Hospital, Singapore
| | - Giat Yeng Khee
- Department of Pharmacy, Singapore General Hospital, Singapore
| | - Julian Thumboo
- Department of Rheumatology and Immunology, Singapore General Hospital, Singapore
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Khaledi M, Haghighatdoost F, Feizi A, Aminorroaya A. The prevalence of comorbid depression in patients with type 2 diabetes: an updated systematic review and meta-analysis on huge number of observational studies. Acta Diabetol 2019; 56:631-650. [PMID: 30903433 DOI: 10.1007/s00592-019-01295-9] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 02/02/2019] [Indexed: 02/06/2023]
Abstract
AIMS Depression is a common co-morbidity in patients with type 2 diabetes mellitus (T2DM). Untreated depression in these patients adversely affects self-care activities and other diabetes complications. The aim of this study is to estimate the prevalence of depression among patients with T2DM by conducting a meta-analysis of observational studies. METHODS MEDLINE, Web of Science, Science Direct, and Google Scholar databases were searched for all observational studies that assessed depression in T2DM. Relevant articles were searched using the combination of Medical Subject Heading (MeSH) terms of "depression", "depressive disorder", and "diabetes mellitus" published between January 2007 and July 2018. Random effects model was used to estimate the weighted prevalence rates and 95% CI using "metaprop program in STATA 11". RESULTS In total, the 248 included studies (with 273 reported prevalence) identified 83,020,812 participants; of them, 23,245,827 (28%; 95% CI 27, 29) suffered from different severity levels of depressive disorders. The prevalence of depression was separately reported in 137,372 males and 134,332 females. Of them, 31,396 males (23%, 95% CI: 20, 26) and 45,673 females (34%, 95% CI: 31, 38) were depressed. Compared with global estimate, depression prevalence was lower in Europe (24%) and Africa (27%), but higher in Australia (29%) and Asia (32%). The prevalence in America was equal to the estimated prevalence in the world (28%). Depression was more common in subjects younger than 65 compared with elderlies (31% vs. 21%). CONCLUSION Our findings demonstrated that almost one in four adults with T2DM experienced depression. Given the high prevalence of depressive disorders in diabetic patients, screening these patients for co-morbid depression and its relevant risk factors is highly recommended.
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Affiliation(s)
- Mohammad Khaledi
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fahimeh Haghighatdoost
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Awat Feizi
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Biostatistics and Epidemiology Department, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ashraf Aminorroaya
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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Yokoyama H, Araki SI, Kawai K, Yamazaki K, Tomonaga O, Shirabe SI, Maegawa H. Declining trends of diabetic nephropathy, retinopathy and neuropathy with improving diabetes care indicators in Japanese patients with type 2 and type 1 diabetes (JDDM 46). BMJ Open Diabetes Res Care 2018; 6:e000521. [PMID: 29892340 PMCID: PMC5992467 DOI: 10.1136/bmjdrc-2018-000521] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 04/11/2018] [Accepted: 04/28/2018] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE We examined changes in prevalence of diabetic microvascular/macrovascular complications and diabetes care indicators for adults in Japan with type 2 and type 1 diabetes over one decade. RESEARCH DESIGN AND METHODS Two independent cohorts were recruited with the same inclusion criteria in 2004 (cohort 1: 3319 with type 2 and 286 with type 1 diabetes) and in 2014 (cohort 2: 3932 with type 2 and 308 with type 1 diabetes). Prevalence of complications and care indicators including achieving treatment targets for glycemia, blood pressure, lipid control, body mass index (BMI), and smoking were compared. In addition, patients in cohort 1 were re-examined in 2014 and their data were compared with the baseline data of each cohort. RESULTS In type 2 diabetes, the prevalence of nephropathy, retinopathy, neuropathy, chronic kidney disease, current smoking and stroke significantly decreased, with improvements in achieving treatment target rates in cohort 2 two as compared with cohort 1. In type 1 diabetes, the prevalence of nephropathy, retinopathy, chronic kidney disease, and hemoglobin A1Cvalues significantly decreased. Decreases in prevalence of microvascular complications in type 2 diabetes were similarly found in each age-matched and sex-matched group, whereas younger patients exhibited marked increase in BMI and lower treatment target achieving rates compared with elderly patients. Regarding normoalbuminuric renal impairment, only a slight increase in the prevalence was observed both in type 2 and type 1 diabetes. In cohort 1, re-examined in 2014, care indicators were significantly improved from 2004, while complications increased with getting 10 years older. CONCLUSIONS We observed declining trends of diabetic microvascular complications with improvement in diabetes care indicators in type 2 and type 1 diabetes. Younger patients with type 2 diabetes exhibited marked increase in BMI and lower rates of achieving treatment targets compared with elderly patients, which remains a concern.
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Affiliation(s)
| | - Shin-ichi Araki
- Department of Medicine, Shiga University of Medical Science, Otsu, Japan
| | | | | | | | | | - Hiroshi Maegawa
- Department of Medicine, Shiga University of Medical Science, Otsu, Japan
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