Association between Testicular Cancer and Epididymoorchitis: A Population-Based Case-Control Study

Li Ting Kao, Herng Ching Lin, Shiu Dong Chung, Chao Yuan Huang

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11 Citations (Scopus)


Even though epididymoorchitis and testicular cancer (TC) may have similar pathophysiological pathways, no prior study has attempted to determine the association between these two diseases. This case-control study investigated the relationship between TC and prior epididymoorchitis by using a large population-based database. We used the Taiwan Longitudinal Health Insurance Database 2005 to select 372 patients who had received a diagnosis of TC and 3,720 age-matched controls without TC. We found that of the total sample of 4,092 patients, 53 (1.3%) had received a diagnosis of epididymoorchitis prior to the index date. Patients with TC had a higher prevalence of prior epididymoorchitis than that of patients without TC (11.0% vs. 0.3%, p <0.001). Conditional logistic regression showed that prior epididymoorchitis was significantly associated with TC (crude OR = 38.24, 95% CI = 19.91-73.46). The association remained statistically significant even after adjustment for the other variables (OR = 47.17, 95% CI = 23.83-93.40). This study showed that patients with TC have higher odds of prior epididymoorchitis than do those without TC even after adjustment for potential confounders.

Original languageEnglish
Article number23079
JournalScientific Reports
Publication statusPublished - Mar 15 2016

ASJC Scopus subject areas

  • General


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