Clinical trial · Observational
CT Carcinogenic Risk in Patients With Appendicitis
Carcinogenic Risk of CT in Patients With Appendicitis
NCT03776435CI-TRIAL-00043454unknownClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The purpose of this study is to compare the incidence rate of leukemia between CT-exposed and CT-unexposed group in patients who underwent appendectomy in South Korea.
Conditions
Conditions (4)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Appendicitis | — | UNRESOLVED | — |
| Carcinogenesis | — | UNRESOLVED | — |
| Computed Tomography | — | UNRESOLVED | — |
| Radiation Exposure | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Abdomen CT | Radiation | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- label
- CT-exposed group
- interventionNames
- Radiation: Abdomen CT
- label
- CT-unexposed group
- interventionNames
- Radiation: Abdomen CT
Primary outcomes (1)
- measure
- Age and sex-standardized incidence rate ratio (IRR) for malignancies of hematologic system
- timeFrame
- Cancer occurrence after a lag period (2 years)
- description
- Hematologic malignancies are categorized into lymphomas, multiple myeloma, leukemias, myelodysplasia and others using ICD-10 codes.
Secondary outcomes (2)
- measure
- Age and sex-standardized incidence rate ratio (IRR) for malignancies of abdominal organs
Eligibility
Eligibility (as posted)
- Sex
- All
Show eligibility criteria text
Inclusion Criteria: * Patients will be entered in the cohort on the date of appendectomy under the diagnosis of appendicitis Exclusion Criteria: * (a) patients who had a cancer diagnosis before the date of appendectomy, * (b) those who had prior experience of CT examination more than 7 days before appendectomy, * (c) those who had syndromes or diseases predisposing cancers, * (d) those whose diagnosis was changed to appendiceal cancer and * (e) those whose follow-up duration was shorter than a lag period.
References
Publications (0)
Data not yet available
No reference posted for this study.