TY  - JOUR
T1  - Survey of Environmental Factors in Incidence of Bells Palsy in Ardabil
AU - , Dariush Savadi Oskoyi AU - , Ali Abedi 
JO  - Research Journal of Biological Sciences
VL  - 3
IS  - 1
SP  - 18
EP  - 20
PY  - 2008
DA  - 2001/08/19
SN  - 1815-8846
DO  - rjbsci.2008.18.20
UR  - https://makhillpublications.co/view-article.php?doi=rjbsci.2008.18.20
KW  - Bell’s palsy
KW  -facial paralysis
KW  -season
KW  -cold
KW  -Ardabil
AB  - Bell’s Palsy (BP) is a relatively common disease characterized by the sudden onset of unilateral facial paralysis. The facial muscle is paralyzed and patients cannot close the eyes control their saliva. Incidence ratio in world is between 11.5-40.2 patients per 100,000 of population. Factors that affect this disease are not clear. In a cross-sectional study in ARDABIL province and using a centralized system that contains demographic encounter data, the authors estimated rates, trends, and demographic risk of Bell’s palsy during a 2-years period. There were 140 incident cases of Bell’s palsy among patients referring to private clinic (total 6500 patients). The crude incidence rate was 2.15 . Incidence rates was high in age between 20-30 years and in females and was higher in cold season than warm ones and higher in cold statue and in farmer working in warm month (p< 0.05). The results are consistent with hypotheses regarding viral etiologies (e.g., reactivations of herpes simplex) of Bell’s palsy that cold can activate this virus.
ER  -