Quick Search:

uzh logo
Browse by:
bullet
bullet
bullet
bullet

Zurich Open Repository and Archive 

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-19425

Muroi, C; Yonekawa, Y; Khan, N; Rousson, V; Keller, E (2004). Seasonal variations in hospital admissions due to aneurysmal subarachnoid haemorrhage in the state of Zurich, Switzerland. Acta Neurochirurgica, 146(7):659-665.

[img] PDF - Registered users only
147kB

Abstract

INTRODUCTION: In clinical practice, the occurrence of aneurysmal subarachnoid haemorrhage (SAH) often coincides with a particular season. Our objective was to examine seasonal variations in hospital admissions due to aneurysmal SAH. METHODS: The study population consisted of 489 patients with aneurysmal SAH who were admitted to the Department of Neurosurgery, University Hospital of Zurich, Switzerland, between 1st of January 1996 and 31st of December 2002. Statistical significance of seasonal variation was determined by applying Roger's r test. RESULTS: Statistically significant seasonal variation was only found among patients younger than 60 years, showing a first peak in spring and second lower peak in autumn (Roger's r=6.89, p<0.05). A borderline significance was found in men younger than 60 years (Roger's r=5.96, p=0.051). A trend was observed in patients presenting with Fisher grade 1-2 (Roger's r=5.70, p=0.058). CONCLUSIONS: Previous studies from different countries have shown significant seasonal variations, with the peak period for aneurysmal SAH differing widely. There appears to be some link between aneurysmal SAH and the season of the year or variations in weather conditions. Further investigations are desirable to evaluate which weather or climatic parameters correlate well with SAH.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Social and Preventive Medicine
DDC:610 Medicine & health
Date:2004
Deposited On:27 Jun 2009 12:14
Last Modified:28 Nov 2013 08:38
Publisher:Springer
ISSN:0001-6268
Additional Information:The original publication is available at www.springerlink.com
Publisher DOI:10.1007/s00701-004-0278-4
PubMed ID:15197608
Citations:Web of Science®. Times Cited: 7
Google Scholar™
Scopus®. Citation Count: 9

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page