| Relationship between the Weather and Spontaneous
Subarachnoid Hemorrhage in the Aged |
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Tae Seok Jeong , Cheol Wan Park , Chan Jong Yoo , Eun Young Kim, Young Bo Kim , Woo Kyung Kim |
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Department of Neurosurgery, Gil Medical Center, Gachon University, Incheon, Korea |
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| Abstract |
Objective
Episodic evidence suggests that in general, the prevalence of spontaneous subarachnoid hemorrhage
(sSAH) varies with seasonal changes and meteorological circumstances. Present retroactive an institute-grounded
analysis was conducted to examine the seasonal periodicity of sSAH in older people, and the relationship, if ever,
between the prevalence of sSAH in older people and meteorological factors in Incheon metropolitan city in the
Midwestern region of the Korean peninsula.
Methods
Hospital information system medical records for 146 successive patients older than 60 years hospitalized
under the diagnosis of sSAH from January 2008 to December 2010 were assessed. Subarachnoid hemorrhage due
to trauma, arteriovenous malformation, intracranial tumor, etc were not included. The mean number of monthly admission
with sSAH was evaluated with respect to the data for local temperature, atmospheric pressure, humidity, and
daily temperature range. The associations between the day by day figure of each of the parameters described above
and daily hospitalized count of patients older than 60 years with sSAH were calculated using a combination of correlation
and time-series analyses.
Results
No seasonal tendency was detected in the hospitalized number of patients older than 60 years with sSAH
through the above mentioned research interval. No statistically meaningful association was found between the number
of daily admissions of patients with sSAH and the meteorological variables of local temperature, atmospheric pressure,
humidity, and the daily temperature range.
Conclusion
We performed an exhaustive enquiry of the relationships between diverse meteorological variables and
the incidence of sSAH in the hospitalized aged. The results suggest that meteorological variables did not have
a statistically meaningful influence on the prevalence of sSAH in the aged at our institute for the above mentioned
research interval. |
| Key Words:
MeteorologyㆍSeasonalityㆍSpontaneous subarachnoid hemorrhageㆍWeatherㆍOld age |
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