Spontaneous subarachnoid haemorrhage incidence among hospitalised patients in Edirne, Turkey
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To the best of our knowledge, no data has been published about the spontaneous subarachnoid haemorrhage (sSAH) incidence in Turkey. We aimed to report the estimation of sSAH incidence in Edirne Province, in Turkey for the first time, using the data acquired from a single medical centre which has the biggest and the most comprehensive emergency department in Edirne and to where a great majority of patients are referred.
We investigated all the accessible sSAH patients’ data obtained from computer-based automation systems and all the written documents in the neurosurgery and the emergency departments. Patients included in the study were diagnosed with sSAH between the dates of January 2007 and December 2011 and were resident in Edirne. We used this data to calculate the crude and age-adjusted incidence rates of sSAH for every decade.
One hundred fifty-four patients have been diagnosed with sSAH during a 5-year period. Among them, 72 were men (47.8%) and 82 (53.2%) were women. The mean age of the patients was 60.8 years and age range was 23–85 years. The overall annual adjusted incidence rate for sSAH was 10.3 per 100,000 person-years (95% confidence interval = 10.2–10.3). Annual adjusted incidence rate was 10 per 100,000 person-years (95% confidence interval = 10–10.1) for men. For women, it was 10.4 per 100,000 person-years (95% confidence interval = 10.4–10.5). For both sexes, after the 6th decade, the annual incidence rate of sSAH was higher than 10 per 100,000, reaching over 20 per 100,000 person-years after the 7th decade. The overall crude incidence rate for sSAH was 10.3 per 100,000 person-years. For men, the crude incidence rate was 9.4 per 100,000 person-years and for women, it was 11.2 per 100,000 person-years.
This study showing the first sSAH incidence estimation in Edirne might also be accepted as an estimation of overall epidemiological sSAH aspect in Turkey. Future investigations should be realised in different parts of Turkey to enlighten the epidemiological state of affairs and the course of sSAH in Turkey.
KeywordsIncidence Intracranial aneurysm Subarachnoid haemorrhage Turkey
- 112 EHSS
112 Emergency Health Services System
Glasgow Coma Scale
Glasgow Outcome Scale
Social Insurance Institution
Spontaneous subarachnoid haemorrhage
Social Security Institution
Turkish Statistical Institute
World Federation of Neurosurgical Societies
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
For this type of study, formal consent is not required.
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