Time Variation in the Occurrence of Stroke-Induced Aphasia: A Report from Ahvaz

Stroke incidence is a multifactorial phenomenon and investigation of the relationship between seasonal-regional variation and stroke is the focus of current studies. Based on seasonal، diurnal and hourly variations، incidence of different stroke was compared in this study. In this retrospective study، 1817 medical records of stroke patients admitted in 2010 were reviewed from Ahvaz medi-educational hospitals. The type of aphasia was diagnosed according to the patients’ speech and language characteristics. SPSS-16 was used to analyze the data. 39. 9% of the patients had stroke-induced aphasia، and the highest rate of stroke incidence was found to be in the Summer time (38. 2%) on Saturdays (16. 1%)، and between 8-12 A. M. (P<0. 05). It seems that incidence of all kinds of stroke is influenced by time variation، and future works are needed to strengthen the results of our study.