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Seasonal Variations in Slipped Capital Femoral Epiphysis
Carter James Kornak White1, Xue-Cheng Liu2, Scott E Van Valin2
1School of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
Children (Basel, Switzerland)
|June 26, 2026
Summary
Slipped capital femoral epiphysis (SCFE) presentation volume shows seasonal variation, with lower-volume months linked to increased socioeconomic deprivation and hip condition severity. Social factors may impact SCFE timing and outcomes.
Area of Science:
- Orthopedics
- Pediatric Health
- Public Health
Background:
- Slipped capital femoral epiphysis (SCFE) is a common adolescent hip disorder with known regional seasonal presentation variations.
- The interplay between seasonality, socioeconomic factors, and SCFE severity is not fully understood.
Purpose of the Study:
- To investigate seasonal patterns in SCFE presentation volume.
- To examine associations between seasonality, socioeconomic deprivation (Area Deprivation Index - ADI), body mass index (BMI), and radiographic severity (Southwick slip angle).
Main Methods:
- Retrospective review of 122 pediatric SCFE patients diagnosed between 2012 and 2024 in Wisconsin.
- Analysis of presentation volume using 3-month rolling averages and sinusoidal regression.
- Statistical assessment of correlations between ADI, BMI, and slip angle using linear regression and Spearman's correlation.
Main Results:
- SCFE presentation volume exhibited significant seasonality (p < 0.05).
- Months with lower presentation volume correlated with higher neighborhood deprivation (ADI) and increased radiographic severity (p < 0.05).
- ADI correlated with slip angle (r = 0.29) and BMI (r = 0.33), but BMI did not significantly correlate with slip angle. Chronic slips had greater slip angles than acute ones.
Conclusions:
- SCFE presentation volume in Wisconsin demonstrates a distinct seasonal pattern.
- Social determinants of health, including neighborhood deprivation, appear to influence the timing of SCFE presentation and disease severity.
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