title: Demographic and clinical characteristics of primary glomerular diseases in Turkey.
abstract: BACKGROUND
  The aim of our study was to delineate the demographic and clinical properties of primary glomerular diseases of adult population in our country in the light of global knowledge.
  
  
  METHODS
  All over the country, a total of 25 centers entered data between May 2009 and July 2012 to the database created by 'Glomerulonephritis Study Group' of Turkish Society of Nephrology. Demographic and clinical characteristics, specific diagnoses of glomerular diseases and biopsy findings recorded to the database were analyzed.
  
  
  RESULTS
  Among the 1,274 patients, who had renal biopsy within the defined time period, 55 % were male and 45 % were female. The mean age was 40.8 ± 14.6 years. The most frequent indication for biopsy was nephrotic syndrome (57.8 %), followed by nephritic syndrome including rapidly progressive glomerulonephritis (16.6 %) and asymptomatic urinary abnormalities (10.8 %). The most frequent primary glomerular disease was membranous nephropathy (28.8 %), followed by focal segmental glomerulosclerosis (19.3 %) and IgA nephropathy (17.2 %).
  
  
  CONCLUSIONS
  The presented study displayed important data about the epidemiology of primary glomerular diseases among adults in our country. The predominance of membranous nephropathy in contrast to other countries, in which the most frequent etiology is IgA nephropathy, seems to be due to differences in the indications for renal biopsy.
authors.affiliation: Nephrology Clinic, Haseki Training and Research Hospital, Istanbul, Turkey.
authors.forename: Savas
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authors.lastname: Ozturk
authors.forename: Abdullah
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authors.lastname: Sumnu
authors.forename: Nurhan
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authors.lastname: Seyahi
authors.forename: Mustafa
authors.initials: M
authors.lastname: Gullulu
authors.forename: Murat
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authors.lastname: Sipahioglu
authors.forename: Serra
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authors.lastname: Artan
authors.forename: Zerrin
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authors.lastname: Bicik
authors.forename: Sim
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authors.lastname: Kutlay
authors.forename: Mustafa
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authors.lastname: Keles
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authors.forename: Ali Riza
authors.initials: AR
authors.lastname: Odabas
authors.forename: Mansur
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authors.lastname: Kayatas
authors.forename: Belda
authors.initials: B
authors.lastname: Dursun
authors.forename: Hayriye
authors.initials: H
authors.lastname: Sayarlioglu
authors.forename: Sinan
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authors.lastname: Trablus
authors.forename: Dilek Guven
authors.initials: DG
authors.lastname: Taymez
authors.forename: Ali Abbas
authors.initials: AA
authors.lastname: Ozdemir
authors.forename: Gulizar Manga
authors.initials: GM
authors.lastname: Sahin
authors.forename: Bulent
authors.initials: B
authors.lastname: Altun
authors.forename: Alper
authors.initials: A
authors.lastname: Azak
authors.forename: Lutfullah
authors.initials: L
authors.lastname: Altintepe
authors.forename: Gultekin
authors.initials: G
authors.lastname: Suleymanlar
authors.forename: Mehmet
authors.initials: M
authors.lastname: Koc
authors.forename: Yilmaz
authors.initials: Y
authors.lastname: Selcuk
authors.forename: Rumeyza
authors.initials: R
authors.lastname: Kazancioglu
authors.forename: Reha
authors.initials: R
authors.lastname: Erkoc
authors.forename: Meltem
authors.initials: M
authors.lastname: Gursu
authors.forename: Mehmet
authors.initials: M
authors.lastname: Kucuk
authors.forename: Selma Alagoz
authors.initials: SA
authors.lastname: Akcaoglu
authors.forename: Abdulmecid
authors.initials: A
authors.lastname: Yıldız
authors.forename: Aydin
authors.initials: A
authors.lastname: Unal
authors.forename: Ozger
authors.initials: O
authors.lastname: Akarsu
authors.forename: Kenan
authors.initials: K
authors.lastname: Ates
authors.forename: Erdem
authors.initials: E
authors.lastname: Cankaya
authors.forename: Aydin
authors.initials: A
authors.lastname: Turkmen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001706:Biopsy; D003430:Cross-Sectional Studies; D003710:Demography; D005260:Female; D005921:Glomerulonephritis / Q000453:epidemiology* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009401:Nephrosis / Q000453:epidemiology* / Q000473:pathology; D014421:Turkey / Q000453:epidemiology