Related Experiment Video
Updated: May 26, 2026

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
Published on: December 9, 2015
Could seasonal patterns in ECT use impact service delivery? A nationwide study
David Barruel1, Marion Plaze2,3, Valérie Dauriac-Le Masson2
1GHU Paris Psychiatrie et Neurosciences, Hôpital Sainte Anne, 1, rue Cabanis, Paris, 75014, France. d.barruel@ghu-paris.fr.
Electroconvulsive therapy (ECT) use in France shows a distinct winter peak, particularly in December. Healthcare systems must plan for this predictable surge in demand to optimize resource allocation.
Area of Science:
- Public Health
- Healthcare Resource Management
- Psychiatric Services
Background:
- Electroconvulsive therapy (ECT) is a vital treatment constrained by resource limitations.
- Effective resource planning in public healthcare necessitates anticipating demand fluctuations.
- Understanding seasonal trends in ECT utilization is crucial for French healthcare systems.
Purpose of the Study:
- To investigate seasonal patterns in electroconvulsive therapy (ECT) utilization in France.
- To analyze ECT demand trends over an extended period (2017-2023).
- To inform resource allocation strategies for public healthcare.
Main Methods:
- Analysis of the French national administrative and medical database.
- Examination of monthly ECT utilization time series from 2017 to 2023.
- Application of robust statistical methods to identify seasonal patterns.
Main Results:
- A significant seasonal pattern with 12-month periodicity was identified in ECT use, explaining 16% of variance.
- ECT activity consistently peaked in early winter (November-December), with a mean relative amplitude of 13.1%.
- Seasonal variations were observed across demographic and diagnostic subgroups, though less pronounced in younger patients and those with schizophrenia.
Conclusions:
- ECT providers in France must prepare for predictable recurrent winter peaks in demand.
- Proactive healthcare policies are needed to align staffing and resources with seasonal ECT activity.
- Anticipating winter surges in ECT utilization is essential for efficient healthcare delivery.
Related Concept Videos
Global Climate Change
Migration
Biological Clocks and Seasonal Responses
Infectious Diseases and Their Occurrence
Observational Studies
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One example of...
Steps in Outbreak Investigation
