Related Experiment Video
Updated: May 13, 2026
A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
Published on: December 9, 2015
Seasonal variation in prevalence of carpal tunnel syndrome
Renata Siciliani Scalco1, Franciane Pietroski, Luiz Felippe S Celli
1Department of Neurology, Pontifícia Universidade Católica do Rio Grande do Sul PUCRS, Porto Alegre, Rio Grande do Sul, Brazil.
Introduction:
The influence of cold temperatures on neuropathies has been reported previously, but its impact on carpal tunnel syndrome (CTS) is not well analyzed.
Methods:
We analyzed the frequency of CTS among neurophysiological evaluations according to seasonal variation in 9574 consecutive patients (4260 with CTS).
Results:
A higher frequency of CTS was found in the winter (50.8%), and the lowest number for CTS diagnosis was found in the summer (38.9%). In both autumn and spring the prevalence remained stable at an intermediate level between summer and winter at 42.8% and 43.5%, respectively.
Conclusion:
CTS frequency was much higher in winter in this center.
