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Turkish Society for Pediatric Endocrinology and Diabetes
Incidence of Type 1 Diabetes in Children Aged Below 18 Years during 2013-2015 in Northwest Turkey [J Clin Res Pediatr Endocrinol]
J Clin Res Pediatr Endocrinol. 2018; 10(4): 336-342 | DOI: 10.4274/jcrpe.0025

Incidence of Type 1 Diabetes in Children Aged Below 18 Years during 2013-2015 in Northwest Turkey

Şükran Poyrazoğlu1, Rüveyde Bundak2, Zehra Yavaş Abalı1, Hasan Önal3, Sevil Sarıkaya3, Abdurrahman Akgün3, Serpil Baş4, Saygın Abalı5, Abdullah Bereket4, Erdal Eren6, Ömer Tarım6, Ayla Güven7, Ayşegül Yüksel8, Gülcan Seymen Karabulut8, Şükrü Hatun9, Tolga Özgen10, Yaşar Cesur10, Mehmet Azizoğlu11, Emine Dilek11, Filiz Tütüncüler11, Esra Papatya Çakır12, Bahar Özcabı13, Fatma Dursun14, Semih Bolu15, İlknur Arslanoğlu15, Gül Yeşiltepe Mutlu16, Pınar İşgüven17, Ala Üstyol18, Erdal Adal19, Ahmet Uçar20, Nurcan Cebeci21, Didem Bezen22, Çiğdem Binay23, Serap Semiz24, Hüseyin Anıl Korkmaz25, Nihal Memioğlu26, Elif Sağsak27, Havva Nur Peltek28, Melek Yıldız3, Teoman Akçay29, Serap Turan4, Tülay Güran4, Zeynep Atay30, Neşe Akcan31, Filiz Çizmecioğlu8, Firdevs Baş1, Halim İşsever32, Feyza Darendeliler1
1İstanbul University İstanbul Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey
2İstanbul University İstanbul Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey & University of Kyrenia Faculty of Medicine, Department of Pediatric Endocrinology, Kyrenia, Turkish Republic of North Cyprus
3Kanuni Sultan Süleyman Training and Research Hospital, Clinic of Pediatric Endocrinology and Metabolic Disease, İstanbul, Turkey
4Marmara University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey
5Marmara University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey & Kartal Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
6Uludağ University Faculty of Medicine, Department of Pediatric Endocrinology, Bursa, Turkey
7Amasya University Faculty of Medicine, Department of Pediatric Endocrinology, Amasya, Turkey & Göztepe Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
8Kocaeli University Faculty of Medicine, Department of Pediatric Endocrinology, Kocaeli, Turkey
9Kocaeli University Faculty of Medicine, Department of Pediatric Endocrinology, Kocaeli, Turkey & Koç University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey
10Bezmialem Vakıf University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey
11Trakya University Faculty of Medicine, Department of Pediatric Endocrinology, Edirne, Turkey
12Bakırköy Dr. Sadi Konuk Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey & Şevket Yılmaz Training and Research Hospital, Clinic of Pediatric Endocrinology, Bursa, Turkey
13İstanbul University Cerrahpaşa Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey & Zeynep Kamil Women’s and Children’s Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
14Ümraniye Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
15Düzce University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey
16Kocaeli University Faculty of Medicine, Department of Pediatric Endocrinology, Kocaeli, Turkey & Zeynep Kamil Women’s and Children’s Disease Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
17Sakarya University Faculty of Medicine, Department of Pediatric Endocrinology, Sakarya, Turkey
18Haseki Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
19Medipol University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey
20Şişli Etfal Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
21Derince Training and Research Hospital, Clinic of Pediatric Endocrinology, Kocaeli, Turkey
22Okmeydanı Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
23Çorlu State Hospital, Clinic of Pediatric Endocrinology, Tekirdağ, Turkey
24Acıbadem University Faculty of Medicine, Clinic of Pediatric Endocrinology, İstanbul, Turkey
25Balıkesir Atatürk State Hospital, Clinic of Pediatric Endocrinology, Balıkesir, Turkey
26American Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
27Gaziosmanpaşa Taksim Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
28Edirne Sultan 1. Murat State Hospital, Clinic of Pediatric Endocrinology, Edirne, Turkey
29Medical Park Gaziosmanpaşa Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey
30Marmara University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey & Medipol University Faculty of Medicine, Department of Pediatric Endocrinology, İstanbul, Turkey
31Göztepe Training and Research Hospital, Clinic of Pediatric Endocrinology, İstanbul, Turkey & University of Near East Faculty of Medicine, Department of Pediatric Endocrinology, Nicosia, Turkish Republic of North Cyprus
32İstanbul University İstanbul Faculty of Medicine, Department of Public Health, İstanbul, Turkey

Objective: To assess the incidence of type 1 diabetes mellitus (T1DM) in children under 18 years of age in the northwest region of Turkey during 2013-2015.
Methods: All newly diagnosed T1DM cases were recorded prospectively during 2013-2015. Total, as well as gender and age group specific (0-4, 5-9, 10-14 and 15-17 age) mean incidences per 100,000 per year were calculated.
Results: There were 1,773 patients diagnosed during 2013-2015 (588 cases in 2013, 592 cases in 2014, 593 cases in 2015). Of these, 862 (48.6%) were girls and 911 (51.4%) were boys. The mean age at diagnosis was 9.2±4.2 years and it was not significantly different between girls (9.0±4.1 years) and boys (9.4±4.4 years) (p=0.052). The crude mean incidence was 8.99/100.000 confidence interval (CI) (95% CI: 8.58-9.42). Although mean incidence was similar between boys [8.98/100.000 (CI: 8.40 to 9.58)] and girls [9.01/100.000 (CI: 8.42 to 9.63)], there was male predominance in all groups except for 5-9 year age group. The standardized mean incidence was 9.02/100.000 according to the World Health Organization standard population. The mean incidence for the 0-4, 5-9, 10-14 and 15-17 age groups was 6.13, 11.68, 11.7 and 5.04/100.000 respectively. The incidence of T1DM was similar over the course of three years (p=0.95). A significant increase in the proportion of cases diagnosed was observed in the autumn-winter seasons.
Conclusion: The northwest region of Turkey experienced an intermediate incidence of T1DM over the period of the study.

Keywords: Type 1 diabetes mellitus, childhood, incidence

Şükran Poyrazoğlu, Rüveyde Bundak, Zehra Yavaş Abalı, Hasan Önal, Sevil Sarıkaya, Abdurrahman Akgün, Serpil Baş, Saygın Abalı, Abdullah Bereket, Erdal Eren, Ömer Tarım, Ayla Güven, Ayşegül Yüksel, Gülcan Seymen Karabulut, Şükrü Hatun, Tolga Özgen, Yaşar Cesur, Mehmet Azizoğlu, Emine Dilek, Filiz Tütüncüler, Esra Papatya Çakır, Bahar Özcabı, Fatma Dursun, Semih Bolu, İlknur Arslanoğlu, Gül Yeşiltepe Mutlu, Pınar İşgüven, Ala Üstyol, Erdal Adal, Ahmet Uçar, Nurcan Cebeci, Didem Bezen, Çiğdem Binay, Serap Semiz, Hüseyin Anıl Korkmaz, Nihal Memioğlu, Elif Sağsak, Havva Nur Peltek, Melek Yıldız, Teoman Akçay, Serap Turan, Tülay Güran, Zeynep Atay, Neşe Akcan, Filiz Çizmecioğlu, Firdevs Baş, Halim İşsever, Feyza Darendeliler. Incidence of Type 1 Diabetes in Children Aged Below 18 Years during 2013-2015 in Northwest Turkey. J Clin Res Pediatr Endocrinol. 2018; 10(4): 336-342
Manuscript Language: English
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