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Niechciał E, Michalak M, Skowrońska B, Fichna P. Increasing trend of childhood type 1 diabetes incidence: 20-year observation from Greater Poland Province, Poland. Acta Diabetol 2024:10.1007/s00592-024-02339-5. [PMID: 39023767 DOI: 10.1007/s00592-024-02339-5] [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: 04/30/2024] [Accepted: 07/06/2024] [Indexed: 07/20/2024]
Abstract
AIM Type 1 diabetes is one of the fastest-growing chronic health conditions. Estimating the incidence rate of childhood type 1 diabetes will allow to aid in adequate planning of health care resources. The study's aim was to assess the incidence rate of type 1 diabetes in children below 15 years of age from Greater Poland (Poland) between 2006 and 2018, and then to compare obtained data to records collected between 1998 and 2003 in pediatric population aged 0-14 years from the same area. METHODS In this cohort study covering the period from January 1998 to December 2018, data were collected for children and adolescents below 14 years of age with newly diagnosed type 1 diabetes living in Greater Poland. The overall population size was taken from the Statistical Office of Poland. Total, sex-, and age-specific incidence rates per 100,000 person-years were calculated for each calendar year. RESULTS Over a 20-year period, the incidence rate of type 1 diabetes in children aged 0-14 years rose around 3.6-fold, from 8.4/100,000 in 1998 to 30.8/100,000 in 2018, with the peak incidence recorded in last year of the study. A clear male predominance of type 1 diabetes was seen in all ages. The rate of type 1 diabetes incidence growth was comparable between all age groups, while the highest incidence rate was mostly observed in children aged 5-9 and 10-14 years. CONCLUSIONS The incidence of type 1 diabetes in children aged 0-14 years is rapidly increasing in Greater Poland.
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Affiliation(s)
- Elżbieta Niechciał
- Department of Pediatric Diabetes, Clinical Auxology and Obesity, Poznan University of Medical Sciences, 27/33 Szpitalna St., Poznan, 60-572, Poland.
| | - Michał Michalak
- Department of Informatics and Statistics, Poznan University of Medical Sciences, 7 Rokietnicka St., Poznan, 60-529, Poland
| | - Bogda Skowrońska
- Department of Pediatric Diabetes, Clinical Auxology and Obesity, Poznan University of Medical Sciences, 27/33 Szpitalna St., Poznan, 60-572, Poland
| | - Piotr Fichna
- Department of Pediatric Diabetes, Clinical Auxology and Obesity, Poznan University of Medical Sciences, 27/33 Szpitalna St., Poznan, 60-572, Poland
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Hormazábal-Aguayo I, Ezzatvar Y, Huerta-Uribe N, Ramírez-Vélez R, Izquierdo M, García-Hermoso A. Incidence of type 1 diabetes mellitus in children and adolescents under 20 years of age across 55 countries from 2000 to 2022: A systematic review with meta-analysis. Diabetes Metab Res Rev 2024; 40:e3749. [PMID: 38037806 DOI: 10.1002/dmrr.3749] [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] [Received: 04/24/2023] [Revised: 10/03/2023] [Accepted: 11/11/2023] [Indexed: 12/01/2023]
Abstract
AIMS The aim of this study was to determine the global incidence of type 1 diabetes mellitus (T1DM) in children and adolescents under 20 years of age from 2000 to 2022. MATERIALS AND METHODS Two reviewers searched three electronic databases (PubMed, Web of Science, and CINAHL) for studies published between January 2000 and November 2022. Pooled estimates of T1DM incidence with a 95% confidence interval (CI) per 100,000 person-years were calculated by country/region, sex, age, and COVID-19 pandemic period (pre-COVID-19 and pandemic). RESULTS The study included 126 studies from 55 countries and 18 regions. The incidence rate (IR) of T1DM from 2000 to 2022 was 14.07 (95%CI, 12.15-16.29) per 100,000 person-years. Finland and high-income North America had the highest IR, with 56.81 (95%CI, 55.91-57.73) and 28.77 (95%CI, 26.59-31.13) per 100,000 person-years, respectively. The IR was 13.37 (95%CI, 10.60-16.88) per 100,000 person-years in boys and 13.87 (95%CI, 11.51-16.70) per 100,000 person-years in girls. There were statistically significant differences among different age ranges: 0-4 versus 5-9 and 10-14 years old (p < 0.001); 5-9 versus 15-19 (p < 0.001) and 10-14 versus 15-19 years old (p = 0.003). Finally, during the pandemic period (2020-2022), the IR was 24.84 (95%CI, 17.16-35.96) per 100,000 person-years, which was higher but not significant compared with the prepandemic period (2017-2019) of 13.56 (95%CI, 7.49-24.56) per 100,000 person-years (p = 0.090). CONCLUSIONS The IR of T1DM in children and adolescents under 20 years of age is substantial, especially during the pandemic period, although it varies across regions. More reliable data from additional countries are needed to determine the worldwide incidence of T1DM.
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Affiliation(s)
- Ignacio Hormazábal-Aguayo
- Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Pamplona, Spain
| | - Yasmin Ezzatvar
- Department of Nursing, Universitat de València, Valencia, Spain
| | - Nidia Huerta-Uribe
- Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Pamplona, Spain
| | - Robinson Ramírez-Vélez
- Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Pamplona, Spain
| | - Mikel Izquierdo
- Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Pamplona, Spain
| | - Antonio García-Hermoso
- Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Pamplona, Spain
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Shi H, Wu S, Ran Z, Tang H, Xiong Q. A New Mouse Model of Whole Pancreas Transplant With Graft Blood Through the Portal Vein. EXP CLIN TRANSPLANT 2024; 22:52-62. [PMID: 38284375 DOI: 10.6002/ect.2023.0305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
OBJECTIVES Pancreas transplant is currently the most effective method for maintaining physiological blood sugar levels and reversing small blood vessel injuries. Our team developed a model of whole pancreas transplant based on microsurgical techniques following the investigation of more than 300 mice. MATERIALS AND METHODS A mouse pancreatic transplant model is required to investigate the pathophysiological process of pancreas transplant and pancreatic preservation technologies. Recently, the segment-neck pancreas transplant has been the most utilized mouse pancreatic transplant model. The innovative mouse pancreatic transplant modelthat we developed in this study uses the whole pancreas and returns heart blood flow into the liver via the portal vein. RESULTS With our mouse pancreatic transplant model, the survivalrate of mice aftertransplant was >80%, and the success rate of pancreatic transplant was >90%. CONCLUSIONS The segment-neck and the whole pancreas model can guarantee that the transplanted pancreas functions effectively, and both have excellent postoperative outcomes, survivalrates and pancreatic active rates.
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Affiliation(s)
- Huizhong Shi
- From the Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
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Bukara-Radujkovic G, Miljkovic V, Ljuboja O. Evidence of increasing incidence of type 1 diabetes and ketoacidosis among children in the Republic of Srpska in period 2017-2022 with special focus on COVID-19 global pandemic years. Front Public Health 2023; 11:1264099. [PMID: 37736091 PMCID: PMC10510193 DOI: 10.3389/fpubh.2023.1264099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/18/2023] [Indexed: 09/23/2023] Open
Abstract
Background and objectives Primary focus of the research was to determine the incidence of type 1 diabetes mellitus in the period from 2017 to 2022, and whether COVID-19 had an impact on the increase in the number of newly diagnosed children with diabetes type 1 under the age of 15 in the Republic of Srpska (Bosnia and Herzegovina). In the period 2001-2016 the incidence of type 1 diabetes mellitus was 11/100,000, with an annual increasing rate of 14.2%. Methods Available data from pediatric endocrinology clinics, in the Republic of Srpska, on the number of newly diagnosed patients with diabetes mellitus in the period from January 1, 2017 until December 31, 2022 were used. A retrospective analysis was performed, and the capture-recapture method was used for the final assessment, and the obtained result corresponds to about 99% of the population. Results The total number of children in the group of 0-14 years of age diagnosed with type 1 diabetes mellitus in this period was 183, of which 96 (52.46%) were boys, and 87 (47.54%) were girls. The average age at which diabetes mellitus was diagnosed was 8.3 ± 3.9 years. Average incidence of diabetes in the period 2017-2022 was 19/100,000 (95% CI 13.1-25.0). The highest incidence was 28.7/100,000 in 2020, the first year of the global COVID-19 pandemic. Out of a total of 183 newly diagnosed cases in the period 2017-2022, 73 (39.9%) were diagnosed with ketoacidosis upon admission. The largest number of newly diagnosed children was recorded in the group of children aged 10-14 years. Conclusion In the last 6 years, there has been a significant increase in the incidence of type 1 diabetes mellitus in children under the age of 15. With an incidence of 19.4/100,000 in the Republic of Srpska, we entered the group of countries with high-risk for diabetes. Further steps must focus on the education of the entire society in order to recognize the symptoms of the disease in time and prevent the occurrence of ketoacidosis, which could significantly reduce the burden on health systems, especially in times of global pandemics, such as the COVID-19 pandemic.
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Affiliation(s)
- Gordana Bukara-Radujkovic
- Pediatric Clinic, University Clinical Center of the Republic of Srpska, Banja Luka, Bosnia and Herzegovina
- Department of Pediatric, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - Vesna Miljkovic
- Pediatric Clinic, University Clinical Center of the Republic of Srpska, Banja Luka, Bosnia and Herzegovina
| | - Olivera Ljuboja
- Pediatric Clinic, University Clinical Center of the Republic of Srpska, Banja Luka, Bosnia and Herzegovina
- Department of Pediatric, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
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Berot A, Gitton A, Diallo AM, Rahim A, Lukas C, Souchon PF, Salmon AS, François M, Ly S, Vitellius G, Decoudier B, Sulmont V, Delemer B, Barraud S. Characteristics of newly diagnosed type 1 diabetes in paediatric and adult population from Reims University Hospital, France from 1997 to 2019. DIABETES & METABOLISM 2022; 48:101346. [PMID: 35339663 DOI: 10.1016/j.diabet.2022.101346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 02/22/2022] [Accepted: 03/08/2022] [Indexed: 10/18/2022]
Abstract
French health insurance data showed that the incidence of type 1 diabetes mellitus (T1DM) in children increased over the years to 2015. The objective of our study was to assess the evolution of the number of incident cases of paediatric and adult type 1 diabetes in our institution, and to describe their clinical presentation and its evolution. All patients with T1DM managed at diagnosis at Reims University Hospital between 1997 and 2019 were included. The clinical and biological data were extracted from the Champagne-Ardenne Diabetes Network database. Included were 847 patients with a median age of 10.3 years. Diagnosis was established in 71% of cases before 15 years, 7.4% after 35 years. The number of newly diagnosed cases was 3.6-times higher in 2019 compared to 1997. Ketoacidosis, the frequency of which decreased with age (P < 0.0001), revealed diabetes in a total of 32% of cases and in 46% of children under 5 years. It was more severe in children than in adults (P = 0.03), and its frequency increased over the study period. Hypotrophy was found in 23% of children under 15 years of age, and was more pronounced before 5 years of age, with no improvement over time. We saw an increase in the frequency of obesity or overweight among adults. Our study showed an increase in incident cases of diabetes in our hospital that continued over time for both children and adults. Clinical features at diagnosis deteriorated during this period for those under 15 years of age with an increase in ketoacidosis frequency.
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Affiliation(s)
- Aurélie Berot
- CHU de Reims - American Memorial Hospital - Service de Pédiatrie, 47 rue Cognac Jay, 51092 Reims Cedex, France; Laboratoire d'Education et Pratiques de Santé, EA 3412, Université Sorbonne Paris Nord, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Anne Gitton
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France
| | - Alpha Mamadou Diallo
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France; Laboratoire de recherche en Santé Publique, Vieillissement, Qualité de vie et Réadaptation des Sujets Fragiles, EA 3797, Université Reims Champagne-Ardenne, Reims, France
| | - Assia Rahim
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France
| | - Céline Lukas
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France
| | - Pierre François Souchon
- CHU de Reims - American Memorial Hospital - Service de Pédiatrie, 47 rue Cognac Jay, 51092 Reims Cedex, France
| | - Anne Sophie Salmon
- CHU de Reims - American Memorial Hospital - Service de Pédiatrie, 47 rue Cognac Jay, 51092 Reims Cedex, France
| | - Maud François
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France
| | - Sang Ly
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France
| | - Géraldine Vitellius
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France
| | - Bénédicte Decoudier
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France
| | - Véronique Sulmont
- CHU de Reims - American Memorial Hospital - Service de Pédiatrie, 47 rue Cognac Jay, 51092 Reims Cedex, France
| | - Brigitte Delemer
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France; CRESTIC EA 3804, Université de Reims Champagne Ardenne, UFR Sciences Exactes et Naturelles, Moulin de la Housse, BP 1039, 51687 Reims CEDEX 2, France
| | - Sara Barraud
- CHU de Reims - Hôpital Robert Debré, Service d'Endocrinologie - Diabète - Nutrition, Avenue du Général Koenig, 51092 Reims Cedex, France; CRESTIC EA 3804, Université de Reims Champagne Ardenne, UFR Sciences Exactes et Naturelles, Moulin de la Housse, BP 1039, 51687 Reims CEDEX 2, France.
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Raicevic M, Samardzic M, Soldatovic I, Curovic Popovic N, Vukovic R. Trends in nationwide incidence of pediatric type 1 diabetes in Montenegro during the last 30 years. Front Endocrinol (Lausanne) 2022; 13:991533. [PMID: 36147568 PMCID: PMC9485557 DOI: 10.3389/fendo.2022.991533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/18/2022] [Indexed: 12/01/2022] Open
Abstract
Significant and unexplained variations in type 1 diabetes (T1D) incidence through the years were observed all around the world. The update on this disorder's incidence is crucial for adequate healthcare resource planning and monitoring of the disease. The aim of this study was to give an update on the current incidence of pediatric T1D in Montenegro and to analyze incidence changes over time and how the exposure to different factors might have affected it. This retrospective cohort study included a total of 582 patients younger than 15 years who were newly diagnosed with T1D during the past 30 years. The average age at diagnosis was 8.4 ± 3.91 years. The mean annual incidence of T1D in the Montenegro population during the whole study period of 30 years was 15.2/100,000 person-years. Slightly higher incidence rates were observed in male compared to female individuals, and the incidence increased with age, with the highest incidence in the 10-14 age group. If the model is observed as one without jointpoints, the annual percentage change (APC) for the total population is 3.1 (1.8-4.4); for male individuals, 3.8 (2.1-5.5); and for female individuals, 2.1 (0.6-3.5). In 2020, the first year of the coronavirus disease of 2019 (COVID-19) pandemic, in comparison to 2019, the incidence rate increased from 19.7/100,000 to 21.5/100,000, with the highest increase in the age group of 5-9 years. This is the first nationwide report on a 30-year period of T1D incidence trend in Montenegro. It suggests that T1D incidence among Montenegrin children is rising again and that there is a short-term influence of COVID-19 on new-onset T1D.
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Affiliation(s)
- Maja Raicevic
- Department of Endocrinology, Institute for Children’s Diseases, Clinical Centre of Montenegro, Podgorica, Montenegro
- *Correspondence: Maja Raicevic,
| | - Mira Samardzic
- Department of Endocrinology, Institute for Children’s Diseases, Clinical Centre of Montenegro, Podgorica, Montenegro
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro
| | - Ivan Soldatovic
- Institute of Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Natasa Curovic Popovic
- Department of Endocrinology, Institute for Children’s Diseases, Clinical Centre of Montenegro, Podgorica, Montenegro
| | - Rade Vukovic
- Department of Endocrinology, Mother and Child Health Care Institute of Serbia “Dr Vukan Cupic”, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
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Saito T, Kobayashi K, Kobayashi K, Mochizuki M, Yagasaki H, Makino K, Narusawa H, Watanabe D, Mitsui Y, Sato K, Sano T, Ohta M, Yokomichi H, Amemiya S. Incidence of childhood type 1 diabetes mellitus in Yamanashi Prefecture, Japan, 1986-2018. Endocrinol Diabetes Metab 2021; 4:e00214. [PMID: 33855216 PMCID: PMC8029530 DOI: 10.1002/edm2.214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/19/2020] [Accepted: 11/19/2020] [Indexed: 11/27/2022] Open
Abstract
Introduction Several studies have examined the incidence of childhood T1DM in Japan from the 1970s onwards, but none have been long-term studies using registration data. We estimate the incidence of childhood type 1 diabetes mellitus (T1DM) from 1986 to 2018 in Yamanashi Prefecture, Japan. Methods We began a population-based, long-term study of childhood T1DM in 1986 involving every hospital paediatrics department in Yamanashi Prefecture. In the Prefecture, every child newly diagnosed with T1DM is referred to a hospital, and therefore, almost 100% of new patients aged <15 years are registered. We calculated the incidence of T1DM among children aged <15 years from 1986 to 2018. All cases met the Japan Diabetes Society diagnostic criteria and were tested for T1DM-related autoantibodies whenever possible. Results Ninety-nine patients (44 boys and 55 girls) were newly diagnosed with T1DM. The annual incidence among 5- to 9-year-olds increased by 5.35% over the study period (95% confidence interval 2.34%-8.35%, p = .0005), and there was a trend towards increasing 3-year incidence (15.52% increase, p = .0516). There were also trends towards increasing annual and 3-year incidence among 0- to 14-year-olds. However, there were no changes over time in annual or 3-year incidence in the 0-4 year or 10-14 year age groups. Conclusions The incidence of T1DM in Yamanashi Prefecture increased among children aged 0-14 years over the study period, with the most significant increase occurring among 5- to 9-year-olds. These data suggest that the number of children aged <15 years with T1DM is gradually increasing in one of the local prefectures in Japan, Yamanashi Prefecture and that the age of onset is decreasing.
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Affiliation(s)
- Tomohiro Saito
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsYamanashi Prefectural HospitalYamanashiJapan
| | - Koji Kobayashi
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsYamanashi Kosei HospitalYamanashiJapan
| | - Kisho Kobayashi
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Kobanyashi Kids’ ClinicYamanashiJapan
| | - Mie Mochizuki
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsKyonan Medical Center Fujikawa HospitalYamanashiJapan
| | - Hideaki Yagasaki
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Koichi Makino
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsFujiyoshida Municipal HospitalYamanashiJapan
| | - Hiromune Narusawa
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Daisuke Watanabe
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsYamanashi Prefectural HospitalYamanashiJapan
| | - Yumiko Mitsui
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Ryuoh Mitsui ClinicYamanashiJapan
| | - Kazumasa Sato
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsKyonan Medical Center Fujikawa HospitalYamanashiJapan
| | - Tomoaki Sano
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsYamanashi Red Cross HospitalYamanashiJapan
| | - Masanori Ohta
- Department of PediatricsFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
- Department of PediatricsTsuru Municipal General HospitalYamanashiJapan
| | - Hiroshi Yokomichi
- Department of Health SciencesFaculty of MedicineGraduate School of MedicineUniversity of YamanashiYamanashiJapan
| | - Shin Amemiya
- Department of PediatricsFaculty of MedicineSaitama Medical UniversitySaitamaJapan
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Khater S, Aouar A, Bensmain N, Bendedouche S, Chabni N, Hamdaoui H, Moussouni A, Moqaddem Z. Very High Incidence of Type 1 Diabetes Among Children Aged Under 15 Years in Tlemcen, Northwest Algeria (2015-2018). J Clin Res Pediatr Endocrinol 2021; 13:44-51. [PMID: 32938578 PMCID: PMC7947720 DOI: 10.4274/jcrpe.galenos.2020.2020.0073] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
OBJECTIVE In Algeria, there is a lack of epidemiological data concerning childhood type 1 diabetes (T1D). The International Diabetes Federation estimated in 2019 that Algeria ranked 7th among countries with the highest prevalence of T1D. This study aimed to determine the incidence of T1D in children <15 years, living in Tlemcen in Northwest Algeria. METHODS A retrospective study using data from children (<15 years) who have been diagnosed with T1D in Tlemcen between 2015 and 2018, using the two-source capture–recapture method to estimate the completeness of ascertainment (%). Total average incidences, by sex, by onset age group, and by season of onset were calculated per 100,000 and per year. RESULTS During the study period, 437 new cases of T1D were registered, among them, 233 boys and 204 girls, with a sex ratio of 1.14. The average annual incidence rate of childhood T1D was 38.5/100,000 with a 95% confidence interval (CI): 35.20-41.79; boys: 40.51, 95% CI: 38.16-42.85; girls: 36.49, 95% CI: 34.17-38.80. Overall incidence rates in 2015, 2016, 2017 and 2018 were respectively 36.6 (95% CI: 33.72-39.48), 38.7 (95% CI: 35.43-41.97), 39.3 (95% CI: 35.97-42.62) and 39.5 (95% CI: 36.12-42.87)/100,000. Newly diagnosed children were more likely to present in winter and autumn. Ketoacidosis at diagnosis was diagnosed in 29.2%. CONCLUSION The mean incidence of childhood T1D in Tlemcen was 38.5/100,000, this incidence is in the “extremely high” category of the World Health Organization DiaMond project classification of diabetes giving this region a very high risk.
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Affiliation(s)
- Sarra Khater
- Abou Beker Belkaid University, Valorisation of Human Actions for the Protection of the Environment and Application in Public Health Laboratory, Tlemcen, Algeria
| | - Ammaria Aouar
- Abou Beker Belkaid University, Valorisation of Human Actions for the Protection of the Environment and Application in Public Health Laboratory, Tlemcen, Algeria
| | - Nawel Bensmain
- Abou Beker Belkaid University, Statistics and Random Models Laboratory, Tlemcen, Algeria
| | - Salih Bendedouche
- Abou Beker Belkaid University, Tlemcen University Hospital, Department of Pediatrics, Tlemcen, Algeria
| | - Nafissa Chabni
- Abou Beker Belkaid University, Tlemcen University Hospital, Department of Epidemiology, Tlemcen, Algeria
| | - Houari Hamdaoui
- Abou Beker Belkaid University, Valorisation of Human Actions for the Protection of the Environment and Application in Public Health Laboratory, Tlemcen, Algeria,* Address for Correspondence: Abou Beker Belkaid University, Valorisation of Human Actions for the Protection of the Environment and Application in Public Health Laboratory, Tlemcen, Algeria E-mail:
| | | | - Zakarya Moqaddem
- Abou Beker Belkaid University, Valorisation of Human Actions for the Protection of the Environment and Application in Public Health Laboratory, Tlemcen, Algeria
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Rami‐Merhar B, Hofer SE, Fröhlich‐Reiterer E, Waldhoer T, Fritsch M. Time trends in incidence of diabetes mellitus in Austrian children and adolescents <15 years (1989-2017). Pediatr Diabetes 2020; 21:720-726. [PMID: 32410357 PMCID: PMC7383999 DOI: 10.1111/pedi.13038] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 04/24/2020] [Accepted: 05/06/2020] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE To analyze the time trends of nationwide diabetes incidence <15 years of age from 1989 until 2017 in Austria. METHODS The Austrian Diabetes Incidence Study Group registers all newly diagnosed patients with diabetes mellitus <15 years of age in a prospective population-based study. The diabetes type was classified on the basis of clinical and laboratory findings according to American Diabetes Association criteria. Time trends were estimated by Joinpoint analysis. RESULTS 1311 patients were diagnosed with type 1 diabetes (T1D) between 1989 and 1999 and 4624 patients with any type of diabetes (1999-2017). T1D accounted for the majority of cases (94.2%), 1.8% were classified as type 2 (T2D) and 4.0% as other specific types of diabetes (1999-2017). In the total cohort (age 0 to <15 years), a constant increase until 2012 (annual percent change [APC] 4.5, 95% confidence interval [CI]: 3.94, 5.06) was observed, followed by a leveling off with a corresponding drop (APC 0.28, 95%CI: -3.94, 4.69). This observation was mainly driven by the dynamic in the youngest age group (0-4 years) with a steep increase until 2007 (APC 7.1, 95%CI: 5.05, 9.19) and a decrease from 2007 to 2017 (APC -0.86, 95%CI: 4.41, 2.82). No significant increase of T2D <15 years was detected. Over the observed time period (APC = 3.7, 95%CI: -0.30, 7.78). CONCLUSIONS The incidence of T1D is declining in young children aged 0 to 4 years, but is still rising in children 5 to 14 years in Austria. Incidence of T2D did not increase significantly and other specific types of diabetes occur twice as often compared to T2D.
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Affiliation(s)
- Birgit Rami‐Merhar
- Department of Pediatrics and Adolescent Medicine, Comprehensive Center for PediatricsMedical University of ViennaViennaAustria
| | - Sabine E. Hofer
- Department of PediatricsMedical University of InnsbruckInnsbruckAustria
| | | | - Thomas Waldhoer
- Department of Epidemiology, Center of Public HealthMedical University of ViennaViennaAustria
| | - Maria Fritsch
- Department of Pediatrics and Adolescent Medicine, Comprehensive Center for PediatricsMedical University of ViennaViennaAustria,Department of Pediatrics and Adolescent MedicineMedical University of GrazGrazAustria
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10
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Barkai L, Kiss Z, Rokszin G, Abonyi-Tóth Z, Jermendy G, Wittmann I, Kempler P. Changes in the incidence and prevalence of type 1 and type 2 diabetes among 2 million children and adolescents in Hungary between 2001 and 2016 - a nationwide population-based study. Arch Med Sci 2020; 16:34-41. [PMID: 32051703 PMCID: PMC6963129 DOI: 10.5114/aoms.2019.88406] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 08/13/2019] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION The aim of the present study was to assess changes in the incidence and prevalence of type 1 diabetes (T1DM) and type 2 diabetes (T2DM) in children and adolescents in Hungary during the period 2001 to 2016 in order to provide nationwide population-based epidemiology data on diabetes in youths aged 0-18 years. MATERIAL AND METHODS This was a retrospective cohort study of Hungarian children and adolescents aged 18 years or younger. Pharmacologically treated diabetes cases were obtained through a population-based registry of the Hungarian National Health Insurance Fund. Time series analysis was used to evaluate the changing patterns of the incidence and prevalence for type 1 and type 2 diabetes covering a 16-year period. RESULTS During the study period, 6,138 and 1,997 new T1DM and T2DM cases were observed, respectively. Newly diagnosed T2DM cases accounted for 24.5% of all incident diabetes cases. Incidence of T1DM increased from 16/100,000 to 23/100,000 (R 2 = 0.7681; p < 0.0001). The male-to-female ratio among newly diagnosed T1DM patients did not change over the study period. Prevalence of T1DM rose from 114/100,000 to 209/100,000 (R 2 = 0.9909; p < 0.0001). The prevalent T1DM cases showed significant male predominance in every year (p < 0.05). Incidence of T2DM decreased from 8/100,000 to 5/100,000 (R 2 = 0.4977; p < 0.0014). The overall prevalence of T2DM did not change significantly. Prevalent T2DM cases showed significant female predominance in every year (p < 0.0001). A significant decrease in male-to female ratio was observed among newly diagnosed T2DM cases over the study period (p < 0.0001). CONCLUSIONS According to these population-based Hungarian data of children and adolescents with diabetes, T1DM is still the most common form and its frequency continues to rise, affecting more males than females. A high proportion of patients have T2DM, affecting more females than males, but the occurrence of medically treated cases is not increasing. The decrease in male-to-female ratio in newly diagnosed T2DM cases needs further investigations.
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Affiliation(s)
- László Barkai
- Institute of Theoretical Health Sciences, Faculty of Health Care, University of Miskolc, Miskolc, Hungary
- Department of Paediatrics and Adolescent Medicine, Faculty of Medicine, Pavol Jozef Safarik University, Kosice, Slovakia
| | - Zoltán Kiss
- 2 Department of Medicine and Nephrological Center, Medical Faculty, University of Pécs, Pécs, Hungary
| | | | | | | | - István Wittmann
- 2 Department of Medicine and Nephrological Center, Medical Faculty, University of Pécs, Pécs, Hungary
| | - Péter Kempler
- 1 Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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11
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Gomez-Lopera N, Pineda-Trujillo N, Diaz-Valencia PA. Correlating the global increase in type 1 diabetes incidence across age groups with national economic prosperity: A systematic review. World J Diabetes 2019; 10:560-580. [PMID: 31915518 PMCID: PMC6944530 DOI: 10.4239/wjd.v10.i12.560] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 10/17/2019] [Accepted: 10/29/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The global epidemiology of type 1 diabetes (T1D) is not yet well known, as no precise data are available from many countries. T1D is, however, characterized by an important variation in incidences among countries and a dramatic increase of these incidences during the last decades, predominantly in younger children. In the United States and Europe, the increase has been associated with the gross domestic product (GDP) per capita. In our previous systematic review, geographical variation of incidence was correlated with socio-economic factors.
AIM To investigate variation in the incidence of T1D in age categories and search to what extent these variations correlated with the GDP per capita.
METHODS A systematic review was performed to retrieve information about the global incidence of T1D among those younger than 14 years of age. The study was carried out according to the PRISMA recommendations. For the analysis, the incidence was organized in the periods: 1975-1999 and 2000-2017. We searched the incidence of T1D in the age-groups 0-4, 5-9 and 10-14. We compared the incidences in countries for which information was available for the two periods. We obtained the GDP from the World Bank. We analysed the relationship between the incidence of T1D with the GDP in countries reporting data at the national level.
RESULTS We retrieved information for 84 out of 194 countries around the world. We found a wide geographic variation in the incidence of T1D and a worldwide increase during the two periods. The largest contribution to this increase was observed in the youngest group of children with T1D, with a relative increase of almost double when comparing the two periods (P value = 2.5 × e-5). Twenty-six countries had information on the incidence of T1D at the national level for the two periods. There was a positive correlation between GDP and the incidence of T1D in both periods (Spearman correlation = 0.52 from 1975-1999 and Spearman correlation = 0.53 from 2000-2017).
CONCLUSION The incidence increase was higher in the youngest group (0-4 years of age), and the highest incidences of T1D were found in wealthier countries.
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Affiliation(s)
- Natalia Gomez-Lopera
- Grupo Mapeo Genetico, Departamento de Pediatría, Facultad de Medicina, Universidad de Antioquia, Medellín 050010470, Colombia
| | - Nicolas Pineda-Trujillo
- Grupo Mapeo Genetico, Departamento de Pediatría, Facultad de Medicina, Universidad de Antioquia, Medellín 050010470, Colombia
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12
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Characteristics of Children with Diabetic Ketoacidosis Treated in Pediatric Intensive Care Unit: Two-Center Cross-Sectional Study in Croatia. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:medicina55070362. [PMID: 31295949 PMCID: PMC6681342 DOI: 10.3390/medicina55070362] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/04/2019] [Accepted: 07/09/2019] [Indexed: 12/22/2022]
Abstract
Background and objective: There is an increasing risk of type 1 diabetes mellitus (T1D) among children in Croatia. Diabetic ketoacidosis (DKA) is the leading cause of morbidity and mortality in children with T1D, with cerebral edema as the most severe complication. Since early recognition of cerebral edema leads to a better outcome, it is important that patients with moderate or severe DKA are closely monitored and treated in pediatric intensive care units (PICUs). The aim of this study is to investigate clinical and laboratory parameters, as well as complications in children treated in PICUs because of DKA. Materials and methods: Patients treated due to DKA in the PICU of the University Hospitals of Split and Osijek from 2013 to 2017 were included in this study. Retrospectively collected data included age, gender, clinical signs and symptoms, and various laboratory parameters. After dividing subjects into two groups: Newly diagnosed with T1D (NT1D) and previously diagnosed with T1D (PT1D), collected data were compared between the two groups. Results: A total of 82 patients were enrolled. Those with NT1D were more often treated in the PICU, with two of them developing cerebral edema. Dehydration was the most frequent clinical sign, found in 95% of patients at admission. Decreased consciousness level was found in 41.5% of patients, with majority of them being somnolent. No difference was found between NT1D and PT1D. Additionally, there was no significant difference regarding laboratory data at admission. Conclusions: More children with NT1D required treatment in the PICU due to DKA with two of them developing cerebral edema. Since cerebral edema is a life-threatening condition, treatment of patients with moderate or severe DKA in PICUs will provide necessary monitoring enabling early recognition, treatment, and better treatment outcome. To minimize the incidence of DKA among patients with NT1D, it is important to continuously carry out public health education programs aimed at early identification of signs and symptoms of T1D.
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13
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Rasoul MA, Haider MZ, Al-Mahdi M, Al-Kandari H, Dhaunsi GS. Relationship of four vitamin D receptor gene polymorphisms with type 1 diabetes mellitus susceptibility in Kuwaiti children. BMC Pediatr 2019; 19:71. [PMID: 30845908 PMCID: PMC6404350 DOI: 10.1186/s12887-019-1448-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/01/2019] [Indexed: 12/17/2022] Open
Abstract
Background The incidence of type 1 diabetes mellitus (T1DM) in Kuwait is amongst the highest in the world. Vitamin D is considered to be involved in immune modulation and its deficiency contribute to autoimmune destruction of insulin producing beta cells in T1DM patients. Vitamin D has been shown to exert its effects via a nuclear vitamin D receptor (VDR) and therefore, VDR gene may be considered a candidate for T1DM susceptibility. Methods The genotypes of four VDR gene polymorphisms were determined in 253 Kuwaiti Arab T1DM patients and 214 healthy controls by PCR-RFLP analysis. Serum concentrations of three autoantibodies i.e. ICA (Islet cell autoantibody), GADA (Glutamic acid decarboxylase) and INS (Insulin autoantibody) were determined by radio-immunoassays. Results Statistically significant differences were detected between the genotypes of two VDR gene polymorphisms (FokI, C > T, rs10735810 and TaqI, C > T, rs731236) between T1DM patients and controls (P < 0.0001). In both, the frequency of variant alleles was considerably high in T1DM than in the controls. In contrast, the VDR gene ApaI (G > T, rs7975232) and BsmI (A > G, rs1544410) polymorphisms did not show association with T1DM. The homozygous variant genotypes of FokI, ApaI and TaqI polymorphisms show significant differences between various age-of-onset subgroups while no such association was detected in the case of BsmI polymorphism. Significant differences were also noted between heterozygous genotypes of all four polymorphisms especially between 4-6y and > 6y age-of-onset subgroups of T1DM patients. Three autoantibodies, ICA (Islet cell), GADA (glutamate decarboxylase) and INS (insulin) were positively associated to, varying degrees, with T1DM in Kuwaiti Arabs harboring different VDR gene polymorphism genotypes. Conclusions Our results demonstrate a significant effect of two VDR gene polymorphisms (FokI and TaqI) and three autoantibodies on genetic susceptibility of T1DM in Kuwaiti Arabs along with other factors.
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Affiliation(s)
- Majedah A Rasoul
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Mohammad Z Haider
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.
| | - Maria Al-Mahdi
- Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Hessa Al-Kandari
- Department of Pediatrics, Farwania Hospital, Farwania, Kuwait.,Family Medicine and Pediatric Unit, Dasman Diabetes Institute, Dasman, Kuwait
| | - Gursev S Dhaunsi
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Medical Laboratories, Mubarak Al-Kabeer Hospital, Jabriya, Kuwait
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14
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Xia Y, Xie Z, Huang G, Zhou Z. Incidence and trend of type 1 diabetes and the underlying environmental determinants. Diabetes Metab Res Rev 2019; 35:e3075. [PMID: 30207035 DOI: 10.1002/dmrr.3075] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/27/2018] [Accepted: 09/09/2018] [Indexed: 12/15/2022]
Abstract
A wealth of epidemiological studies concerning the distribution of type 1 diabetes (T1D) around the world have pointed to the appreciable variation in the incidence of T1D among disparate age groups, ethnicities, and geographical locations. On the whole, the incidence of childhood T1D has been on the rise, and a plausible inverse relationship between the initial incidence rate and the following annual increase in incidence has been raised. Countries that used to exhibit lower incidences tend to have steep annual increase whereas those with already-established high incidences are more likely to show a modest increase or even stabilization in T1D incidence. Environmental agents considered responsible for the current evolving pattern of T1D incidence will be detailed, mainly including the increasing prevalence of childhood obesity, viral infections in a chronic manner, maternal-child interaction such as breastfeeding, and latitude-ultraviolet B-vitamin D pathway. Certain rationale has been put forward in an attempt to explain the potential association between environmental agents and development of T1D. For instance, accelerator hypothesis regards insulin resistance as the promoter of earlier disease onset in obese children whereas the negative correlation of microbial infections in background populations with incidence of T1D represents the basic component of the hygiene hypothesis. Further investigations are still warranted to verify these theories across multiple ethnic groups and to identify additional contributors to the variation in T1D incidence.
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Affiliation(s)
- Ying Xia
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education; National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Zhiguo Xie
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education; National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Gan Huang
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education; National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
| | - Zhiguang Zhou
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education; National Clinical Research Center for Metabolic Diseases, Changsha, Hunan, China
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15
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Putarek K, Banfic L, Pasalic M, Krnic N, Spehar Uroic A, Rojnic Putarek N. Arterial stiffness as a measure of cardiovascular risk in obese adolescents and adolescents with diabetes type 1. J Pediatr Endocrinol Metab 2018; 31:1315-1323. [PMID: 30433871 DOI: 10.1515/jpem-2018-0137] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 10/08/2018] [Indexed: 01/03/2023]
Abstract
Background Cardiovascular disease (CVD) is the end result of vascular aging and atherosclerosis, having its origins in childhood. The aim of our study was to compare arterial stiffness (AS) and intima-media thickness (IMT) as markers of an early vascular damage between obese adolescents, adolescents with diabetes type 1 (T1D) and lean control subjects. Methods We analyzed AS and IMT in 68 obese adolescents (13.27±2.31 years), 42 adolescents with T1D (14.95±2.35 years) lasting over 5 years and 38 controls (15.02±1.94 years). AS (measured by pulse wave velocity [PWV], arterial compliance [AC] and β-stiffness) and IMT were assessed using an e-tracking ultrasound method. Results A significant difference between the groups was found for AC (p=0.022) and PWV (p=0.010), with the lowest compliance and higher velocities in T1D patients. When corrected for age, the difference in AC among the groups did not reach a statistical difference (p=0.059). Correlation analysis in the obese adolescents showed lower AC in females (p=0.041), with higher systolic blood pressure (SBP) (p=0.032). In T1D adolescents, disease duration was the strongest determinant of AS (AC p=0.028, β p=0.029 and PWV p=0.003), followed by body mass index (BMI; PWV p=0.008; β p=0.033), SBP (AC p<0.001; PWV p=0.023), diastolic BP (AC p=0.049; PWV p=0.048) and HbA1c (PWV p=0.048). No significant correlations were found for AS measures or IMT with sex, age, BMI, Tanner stage or BP levels in controls. Conclusions Early vascular damage is more pronounced in T1D adolescents than in obese or lean adolescents, which may emphasize the impact of hyperglycemia as a major threat for cardiovascular health.
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Affiliation(s)
- Kresimir Putarek
- Department of Cardiovascular Diseases, Zagreb University Hospital Centre, Zagreb, Croatia
| | - Ljiljana Banfic
- Department of Cardiovascular Diseases, Zagreb University Hospital Centre, School of Medicine, Zagreb, Croatia
| | - Marijan Pasalic
- Department of Cardiovascular Diseases, Zagreb University Hospital Centre, Zagreb, Croatia
| | - Nevena Krnic
- Department of Paediatric Endocrinology and Diabetes, Zagreb University Hospital Centre, School of Medicine, Zagreb, Croatia
| | - Anita Spehar Uroic
- Department of Paediatric Endocrinology and Diabetes, Zagreb University Hospital Centre, Zagreb, Croatia
| | - Natasa Rojnic Putarek
- Department of Paediatric Endocrinology and Diabetes, Zagreb University Hospital Centre, School of Medicine, Zagreb, Croatia
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16
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Zung A, Na'amnih W, Bluednikov Y, Mery N, Blumenfeld O. The proportion of familial cases of type 1 diabetes is increasing simultaneously with the disease incidence: Eighteen years of the Israeli Pediatric Diabetes Registry. Pediatr Diabetes 2018; 19:693-698. [PMID: 29193540 DOI: 10.1111/pedi.12617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 10/22/2017] [Accepted: 11/07/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The global rise in incidence of type 1 diabetes (T1D) is too rapid to be attributed to susceptible genetic background, pinpointing a significant role for environmental factors. Unlike the theory that the need for genetic susceptibility has lessened over time, we hypothesized that the rise in T1D incidence is faster in a genetically susceptible population. SUBJECTS AND METHODS The study population comprised of 5080 patients aged 0 to 17 years who were reported to the National Israel Diabetes Registry between 1997 and 2014. The patients were divided into familial cases (first-degree relative has T1D), and sporadic cases. Demographic and clinical data were retrieved from the registry. The change in annual percent (from the entire cohort) was computed separately for the sporadic and familial cohorts. RESULTS The familial (n = 546; 10.7%) and sporadic (n = 4534; 89.3%) cases were comparable for gender, ethnicity, and age at diagnosis. Consanguinity was more common in the familial vs sporadic group (10% vs 6.1%; P = .001). The average annual percent change increased by 1.9% in the familial cases and decreased by 0.2% in the sporadic cases (P = .04). CONCLUSIONS The rapid rise in the proportion of familial cases of T1D suggests that environmental factors impose higher diabetogenic pressure in patients with a susceptible genetic background.
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Affiliation(s)
- Amnon Zung
- Pediatric Endocrinology Unit, Kaplan Medical Center, Rehovot, Israel.,The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Wasef Na'amnih
- Israel Centers for Disease Control, Ministry of Health, Tel Hashomer, Israel
| | - Yulia Bluednikov
- Israel Centers for Disease Control, Ministry of Health, Tel Hashomer, Israel
| | - Nisim Mery
- Israel Centers for Disease Control, Ministry of Health, Tel Hashomer, Israel
| | - Orit Blumenfeld
- Israel Centers for Disease Control, Ministry of Health, Tel Hashomer, Israel
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Fox DA, Islam N, Sutherland J, Reimer K, Amed S. Type 1 diabetes incidence and prevalence trends in a cohort of Canadian children and youth. Pediatr Diabetes 2018; 19:501-505. [PMID: 28857360 DOI: 10.1111/pedi.12566] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/14/2017] [Accepted: 07/17/2017] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Incidence rates of type 1 diabetes have long been on the rise across the globe, however, there is emerging evidence that the rate of rise may be slowing. The objective of this study was to describe trends in the incidence and prevalence of type 1 diabetes in a sample of Canadian children and youth. METHODS Cases were extracted using linked administrative datasets and a validated diabetes case-finding definition. Incidence and prevalence trends were analyzed using the JoinPoint regression analysis program. RESULTS A small increase in the incidence of type 1 diabetes was observed over the 11-year period from 2002-2003 to 2012-2013. Total incident cases per year ranged from 201 (2005-2006) to 250 (2007-2008). Total prevalent cases per year ranged from 1790 (2002-2003) to 2264 (2012-2013). Incidence was highest among children aged 5 to 14 years, and lowest in the youngest (1-4 years) and oldest (15-19 years) age brackets. The most significant increase in incidence was in children aged 10 to 14 years. Age-standardized prevalence increased significantly throughout the study period. CONCLUSION These results are similar to data from the United States but differ from European data with respect to the annual percent change for incidence as well as age-specific incidence trends. In keeping with the low mortality rates associated with type 1 diabetes, the prevalence continues to rise.
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Affiliation(s)
- Danya A Fox
- Department of Pediatrics, University of British Columbia, Vancouver, Canada
| | - Nazrul Islam
- School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, Canada.,Clinical Prevention Services, British Columbia Centre for Disease Control, Vancouver, Canada.,Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Jenny Sutherland
- BC Ministry of Health, Population Health Surveillance & Epidemiology, Victoria, Canada
| | - Kim Reimer
- BC Ministry of Health, Population Health Surveillance & Epidemiology, Victoria, Canada
| | - Shazhan Amed
- Department of Pediatrics, University of British Columbia, Vancouver, Canada
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18
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Szalecki M, Wysocka-Mincewicz M, Ramotowska A, Mazur A, Lisowicz L, Beń-Skowronek I, Sieniawska J, Klonowska B, Charemska D, Nawrotek J, Jałowiec I, Bossowski A, Jamiołkowska M, Pyrżak B, Miszkurka G, Szypowska A. Epidemiology of type 1 diabetes in Polish children: A multicentre cohort study. Diabetes Metab Res Rev 2018; 34. [PMID: 29144024 DOI: 10.1002/dmrr.2962] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 10/05/2017] [Accepted: 10/14/2017] [Indexed: 01/29/2023]
Abstract
BACKGROUND The incidence of childhood type 1 diabetes (T1D) varies greatly between populations, and the estimates and/or predictions of the rates would aid in adequate planning of health care resources. The study's aim was to assess the incidence of T1D in the paediatric population of eastern and central Poland. METHODS In this cohort study covering the period from January 2010 to December 2014, data were collected for children and adolescents below 18 years of age with newly diagnosed T1D living in eastern and central Poland. A total of 2174 children were included in the analysis. The population estimates were from the Central Statistical Office of Poland. RESULTS Overall, the annual incidence of T1D increased from 12.84/100,000 in 2010 to 18.46/100,000 in 2014 with the incidence rate (IR) ratio of 1.5 (an increase in the IR by 12.7% per year over 5 years). The lowest increase in the IR by 7.1% per year was seen in 15 to 17-year-olds. In the urban population (age 0-17 years), the overall incidence rate was significantly higher than in subjects from rural communities (P < .02). The incidence of T1D in rural areas was significantly higher (p = .004) in voivodeships of higher population density. Such dependence was not observed in urban areas. CONCLUSIONS The incidence of T1D in children living in eastern and central Poland increased 1.5-fold over the 5-year observation period with the highest rise in 10 to 14-year-olds and significantly higher rates in urban children compared with their peers living in rural areas.
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Affiliation(s)
- Mieczysław Szalecki
- Department of Endocrinology and Diabetology, Children's Memorial Health Institute, Warsaw, Poland
- The Faculty of Medicine and Health Sciences, Jan Kochanowski University, Kielce, Poland
| | - Marta Wysocka-Mincewicz
- Department of Endocrinology and Diabetology, Children's Memorial Health Institute, Warsaw, Poland
| | - Anna Ramotowska
- Department of Paediatrics, Medical University of Warsaw, Warsaw, Poland
| | - Artur Mazur
- II Department of Paediatrics, Paediatric Endocrinology and Diabetes, Medical Faculty, University of Rzeszów, Rzeszów, Poland
| | - Lucyna Lisowicz
- II Department of Paediatrics, Paediatric Endocrinology and Diabetes, Medical Faculty, University of Rzeszów, Rzeszów, Poland
| | - Iwona Beń-Skowronek
- Department of Paediatric Endocrinology and Diabetology, Medical University of Lublin, Lublin, Poland
| | - Joanna Sieniawska
- Department of Paediatric Endocrinology and Diabetology, Medical University of Lublin, Lublin, Poland
| | - Bożena Klonowska
- Department of Clinical Paediatrics, Faculty of Medical Sciences, Provincial Specialist Children's Hospital, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Dorota Charemska
- Department of Clinical Paediatrics, Faculty of Medical Sciences, Provincial Specialist Children's Hospital, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Jolanta Nawrotek
- Endocrinology and Diabetology Ward, General District Hospital, Kielce, Poland
| | - Irena Jałowiec
- Endocrinology and Diabetology Ward, General District Hospital, Kielce, Poland
| | - Artur Bossowski
- Department of Paediatrics, Endocrinology and Diabetology with a Cardiology Division, Medical University of Białystok, Białystok, Poland
| | - Milena Jamiołkowska
- Department of Paediatrics, Endocrinology and Diabetology with a Cardiology Division, Medical University of Białystok, Białystok, Poland
| | - Beata Pyrżak
- Department of Paediatric Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Grażyna Miszkurka
- Department of Paediatric Endocrinology, Medical University of Warsaw, Warsaw, Poland
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19
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Shaltout AA, Wake D, Thanaraj TA, Omar DM, Al-AbdulRazzaq D, Channanath A, AlKandari H, Abdulrasoul M, Miller S, Conway N, Tuomilehto J, Davidsson L. Incidence of type 1 diabetes has doubled in Kuwaiti children 0-14 years over the last 20 years. Pediatr Diabetes 2017; 18:761-766. [PMID: 27981709 DOI: 10.1111/pedi.12480] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 10/24/2016] [Accepted: 11/03/2016] [Indexed: 12/22/2022] Open
Abstract
AIMS This study had 2 aims: to report data on the incidence of childhood-onset type 1 diabetes in Kuwaiti children aged 0-14 years during 2011 to 2013 and to compare the recent data with those collected during 1992 to 1997. METHODS All newly diagnosed patients were registered through the Childhood-Onset Diabetes eRegistry (CODeR) in 2011-2013, based on the DiaMond protocol used in 1992-1997. RESULTS A total of 515 Kuwaiti children (247 boys and 268 girls) aged 0-14 years newly diagnosed with type 1 diabetes were registered from 1 January 2011 to 31 December 2013. Data ascertainment were 96.7%. The mean age ± SD at diagnosis was 8.7 ± 3.4 years in boys and 7.9 ± 3.1 years in girls. The crude incidence rate (95% CI) was 40.9 (37.4-44.6) and the age standardized rate 41.7 (95% 38.1-45.4) per 100,000 per year, 39.3 (34.6-44.4) among boys and 44.1 (39.0-49.7) among girls. A statistically significant increasing trend in incidence was observed as the overall crude incidence rose from 17.7 in 1992-1994 to 40.9 per 100,000 per year in 2011-2013. The Poisson regression model depicting the trend in incidence revealed that, the incidence rates adjusted for age and sex in 2011 to 2013 was 2.3 (95% CI 1.9-2.7) times higher than 1992-1997. CONCLUSIONS The incidence of type 1 diabetes in Kuwaiti children 0-14 years has doubled in the last 2 decades. The reasons for this increase requires further investigation.
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Affiliation(s)
- Azza A Shaltout
- Research Division, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Deborah Wake
- Medical Research Unit, University of Dundee, Ninewells Hospital, Dundee, United Kingdom of Great Britain and Northern Ireland
| | | | - Dina M Omar
- Research Division, Dasman Diabetes Institute, Kuwait, Kuwait
| | | | | | | | - Majedah Abdulrasoul
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Safat, Kuwait
| | | | - Nicholas Conway
- Medical Research Unit, University of Dundee, Ninewells Hospital, Dundee, United Kingdom of Great Britain and Northern Ireland
| | | | - Lena Davidsson
- Research Division, Dasman Diabetes Institute, Kuwait, Kuwait
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20
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Negrato CA, Lauris JRP, Saggioro IB, Corradini MCM, Borges PR, Crês MC, Junior AL, Guedes MFS, Gomes MB. Increasing incidence of type 1 diabetes between 1986 and 2015 in Bauru, Brazil. Diabetes Res Clin Pract 2017; 127:198-204. [PMID: 28391136 DOI: 10.1016/j.diabres.2017.03.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 03/16/2017] [Indexed: 12/21/2022]
Abstract
AIMS To assess temporal trends in the incidence of type 1 diabetes in Bauru, São Paulo State, Brazil from 1986 to 2015. RESEARCH DESIGN AND METHODS The yearly incidence of type 1 diabetes (per 100,000/yr) from 1986 to 2015 was determined in children ≤14yr of age, using individual case notification and the capture and recapture method. RESULTS During thirty years (1986-2015), 302 cases were diagnosed in our population. The overall incidence was of 12.8/100,000 (95% CI: 11.2-14.4), ranging from 2.8/100,000 in 1987 to 25.6/100,000 in 2013 with a 9.1-fold variation. It was non-significantly higher in girls [13.7 (95% CI: 11.4-16.1)] than in boys [12.0 (95% CI: 9.8-14.2)] (p=0.48) and significantly higher in the 5-9yr [14.6 (95% CI: 11.8-17.4)] and 10-14yr [15.8 (95% CI: 12.7-18.8)] age ranges compared to the 0-4yr [8.1 (95% CI: 6.0-10.2)] age range (p<0.001). The majority of diagnoses were made in colder months. The patterns of incidence were very high and high in 80.0% of the study-years. CONCLUSIONS The incidence of type1 diabetes in children ≤14yr has increased in Bauru, Brazil, in the last thirty years, in approximately 3.1% annually, with an absolute crude increase of 2.5-fold. These findings pose Brazil as a country with high incidence of type 1 diabetes. All Brazilian regions should be enrolled in future studies to determine the factors that contribute to the predisposition to type 1 diabetes in our population and to the steep rise in its incidence.
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Affiliation(s)
- Carlos Antonio Negrato
- Bauru's Diabetics Association, Department of Internal Medicine, Bauru, São Paulo, Brazil.
| | - José Roberto Pereira Lauris
- Department of Pediatric Dentistry, Orthodontics and Community Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Ieso Braz Saggioro
- Bauru's Diabetics Association, Department of Internal Medicine, Bauru, São Paulo, Brazil
| | | | - Pricila Rubia Borges
- Bauru's Diabetics Association, Department of Internal Medicine, Bauru, São Paulo, Brazil
| | - Maria Cristina Crês
- Bauru's Diabetics Association, Department of Internal Medicine, Bauru, São Paulo, Brazil
| | - Aluysio Leal Junior
- Bauru's Diabetics Association, Department of Internal Medicine, Bauru, São Paulo, Brazil
| | | | - Marilia Brito Gomes
- Department of Internal Medicine, Diabetes Unit, State University Hospital of Rio de Janeiro, Rio de Janeiro, Brazil
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21
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Kim JH, Lee CG, Lee YA, Yang SW, Shin CH. Increasing incidence of type 1 diabetes among Korean children and adolescents: analysis of data from a nationwide registry in Korea. Pediatr Diabetes 2016; 17:519-524. [PMID: 26420382 DOI: 10.1111/pedi.12324] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/30/2015] [Accepted: 09/01/2015] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The incidence of type 1 diabetes mellitus (T1DM) in children and adolescents has increased worldwide. However, the epidemiology of T1DM among Korean youth has not been reported since 2001. We investigated the incidence of T1DM in Korean children and adolescents from 2012 to 2014 and compared it with data from 1995 to 2000. PATIENTS AND METHODS Data were obtained from the National Health Insurance Service (NHIS) registry, and age- and sex-specific incidence rates were calculated per 100 000 population. RESULTS In total, 706 patients (326 boys and 380 girls, aged <15 yr) with T1DM were registered in the NHIS during 2012-2014. The incidence rate per 100 000 population was 3.19 (95% confidence interval [CI] 2.96-3.43). We found incidence rates of 1.68, 3.16, and 4.46 in children 0-4, 5-9, and 10-14 yr, respectively. The T1DM incidence was 2.84 in boys and 3.56 in girls. A higher T1DM incidence was seen during 2012-2014 than from 1995-2000 (incidence rate ratio 2.33; p < 0.001). The incidence rate ratios between 1995-2000 and 2012-2014 were 2.31, 2.20, and 2.27 in children 0-4, 5-9, and 10-14 yr, respectively. The annual increase in T1DM incidence was 5.6% (95% CI 5.0-6.3%) between 1995 and 2014. CONCLUSIONS We observed a significant increase in the T1DM incidence. This increase was higher in boys than in girls, and was highest in children aged 0-4 yr. Studies are needed to evaluate the long-term epidemiological trend of T1DM incidence.
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Affiliation(s)
- Jae Hyun Kim
- Department of Pediatrics, Inje University College of Medicine, Ilsan Paik Hospital, Goyang, Korea
| | - Chong Guk Lee
- Department of Pediatrics, Asan Chungmu Hospital, Asan-si, Korea
| | - Young Ah Lee
- Division of Endocrinology and Metabolism, Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Sei Won Yang
- Division of Endocrinology and Metabolism, Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Choong Ho Shin
- Division of Endocrinology and Metabolism, Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea.
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22
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Wu HB, Zhong JM, Hu RY, Wang H, Gong WW, Pan J, Fei FR, Wang M, Guo LH, Yang L, Yu M. Rapidly rising incidence of Type 1 diabetes in children and adolescents aged 0-19 years in Zhejiang, China, 2007 to 2013. Diabet Med 2016; 33:1339-46. [PMID: 26499360 DOI: 10.1111/dme.13010] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/21/2015] [Indexed: 12/16/2022]
Abstract
AIMS To investigate the incidence rates and trends in Type 1 diabetes in children and adolescents aged 0-19 years in the registered Zhejiang population over the period 2007-2013 by age, sex and calendar year. METHODS In total, 611 individuals with newly diagnosed Type 1 diabetes were identified from 30 districts in Zhejiang province over the study period. Annual incidence and 95% confidence intervals (CI) by age group and sex were calculated per 100 000 person-years. Trends in diabetes incidence and the associations of age and sex with Type 1 diabetes were assessed using Poisson regression models. RESULTS The mean annual age-standardized incidence of diabetes was 2.02/100 000 person-years (95% CI: 1.92-2.12), with an average annual increase of 12.0% (95% CI: 7.6-16.6%) over the study period. The risk for Type 1 diabetes in girls was estimated to be 1.25 (95% CI: 1.07-1.47) times higher than that in boys. Compared with those aged 0-4 years, the 5-9, 10-14 and 15-19 years age groups were at significantly greater risk, with adjusting incidence rate ratios of 3.54, 6.58 and 5.39, respectively. The mean age at diagnosis decreased significantly from 12.85 years in 2007 to 11.21 years in 2013. A steep rise in diabetes incidence was observed in the under 5 years age group, which showed the greatest increase at 33.61%. CONCLUSIONS The incidence of diabetes in Zhejiang was relatively low, although rapidly rising trends have been found in recent years, particularly in younger children. Further monitoring and research are urgently required to better understand possible environmental risk factors and formulate preventive strategies.
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Affiliation(s)
- H B Wu
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - J M Zhong
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - R Y Hu
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - H Wang
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - W W Gong
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - J Pan
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - F R Fei
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - M Wang
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - L H Guo
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - L Yang
- Zhejiang Provincial Center for Cardio-cerebrovascular Diseases Control and Prevention, Zhejiang Hospital, Hangzhou, China
| | - M Yu
- Department of NCDs Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
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23
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Gerasimidi Vazeou A, Kordonouri O, Witsch M, Hermann JM, Forsander G, de Beaufort C, Veeze HJ, Maffeis C, Cherubini V, Cinek O, Piccini B, Holl RW, Danne T. Seasonality at the clinical onset of type 1 diabetes-Lessons from the SWEET database. Pediatr Diabetes 2016; 17 Suppl 23:32-37. [PMID: 28334496 DOI: 10.1111/pedi.12433] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 07/19/2016] [Accepted: 08/02/2016] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Seasonality at the clinical onset of type 1 diabetes (T1D) has been suggested by different studies, however, the results are conflicting. This study aimed to evaluate the presence of seasonality at clinical onset of T1D based on the SWEET database comprising data from 32 different countries. METHODS The study cohort included 23 603 patients (52% males) recorded in the international multicenter SWEET database (48 centers), with T1D onset ≤20 years, year of onset between 1980 and 2015, gender, year and month of birth and T1D-diagnosis documented. Data were stratified according to four age groups (<5, 5-<10, 10-<15, 15-20 years) at T1D onset, the latitude of European center (Northern ≥50°N and Southern Europe <50°N) and the year of onset ≤ or >2009. RESULTS Analysis by month revealed significant seasonality with January being the month with the highest and June with the lowest percentage of incident cases (P < .001). Winter, early spring and late autumn months had higher percentage of incident cases compared with late spring and summer months. Stratification by age showed similar seasonality patterns in all four age groups (P ≤ .003 each), but not in children <24 months of age. There was no gender or latitude effect on seasonality pattern, however, the pattern differed by the year of onset (P < .001). Seasonality of diagnosis conformed to a sinusoidal model for all cases, females and males, age groups, northern and southern European countries. CONCLUSIONS Seasonality at T1D clinical onset is documented by the large SWEET database with no gender or latitude (Europe only) effect except from the year of manifestation.
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Affiliation(s)
| | - O Kordonouri
- Kinderkrankenhaus auf der Bult, Hannover, Germany
| | - M Witsch
- DCCP-Clinique pédiatrique de Luxembourg, Luxembourg, Luxembourg
| | - J M Hermann
- Institute for Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - G Forsander
- The Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - C de Beaufort
- DCCP-Clinique pédiatrique de Luxembourg, Luxembourg, Luxembourg
| | - H J Veeze
- Stichting Diabeter, Center for Pediatric and Adolescent Diabetes Care and Research, Rotterdam, The Netherlands
| | - C Maffeis
- Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, University City Hospital, Verona, Italy
| | - V Cherubini
- Department of women's & children's health G. Salesi Children's Hospital, Ancona, Italy
| | - O Cinek
- Department of Pediatrics, 2nd Faculty of Medicine, Charles University in Prague, University Hospital Motol, Prague, Czech Republic
| | - B Piccini
- Tuscany Regional Centre of Pediatric Diabetes, Meyer University Children's Hospital, Florence, Italy
| | - R W Holl
- Institute for Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - T Danne
- Kinderkrankenhaus auf der Bult, Hannover, Germany
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24
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Parthasarathy S, Choudhary P. Epidemiology and pathogenesis of type 1 diabetes. ADVANCED NUTRITION AND DIETETICS IN DIABETES 2015:51-59. [DOI: 10.1002/9781119121725.ch7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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