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Change in Warthin's tumor incidence: a 20-year joinpoint trend analysis
Orhan Tunç1, Burhanettin Gönüldaş2, Yusuf Arslanhan2
1Department of Otorhinolaryngology, Gaziantep University, Gaziantep, Turkey. orhantip@hotmail.com.
Summary
Warthin's tumor (WT) incidence is rising globally. However, this study found no significant annual increase in WT cases at our hospital over 20 years, despite a rise in parotidectomies.
Area of Science:
- Otolaryngology
- Surgical Pathology
- Oncology
Background:
- Warthin's tumor (WT) incidence shows a global upward trend.
- Parotid gland tumors require ongoing epidemiological surveillance.
Purpose of the Study:
- To assess the incidence trend of Warthin's tumor (WT) within a large-population hospital over two decades.
- To determine if the observed global increase in WT is reflected locally.
Main Methods:
- Retrospective analysis of 573 parotid tumor patients over 20 years.
- Evaluation of WT surgical cases to identify annual incidence trends.
- Segmented regression analysis to calculate the annual percentage change (APC) of WT.
Main Results:
- The ratio of WT to all parotid tumors fluctuated over the study period.
- A general increase in the annual number of parotidectomies was noted.
- The calculated annual percentage change (APC) for WT was not statistically significant (APC = 4.3%, P = 0.300).
Conclusions:
- Despite worldwide increases in Warthin's tumor (WT) incidence, no significant upward trend was detected in this hospital's patient cohort.
- Further research may be needed to understand regional variations in WT epidemiology.
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