Data collection
Each department in Ramathibodi hospital including surgical out patient, radiation outpatient and pathology laboratory is responsible to complete all data on cancer diagnosed and treated within six months of diagnosis. Sources for identifying eligible cases include:
- all types of malignancies including skin cancer, pre-invasive cancer or carcinoma in situ, neoplasm with malignant potential
- all types of myeloproliferative disorders
- all types of malignant histiocytosis
- carcinomatosisperitonei without detectable primary
- thymoma-both benign and malignant
- all type of CNS tumors (intracranial & spinal cord) both benign and malignant
- gastrointestinal stomach tumor
Exclusion criteria
- Benign tumors
- Pre-malignant
Remarks: When a cancer case is reported form more than on department, the information is consolidate into one record
Reported cases contain the following data:
- Patient characteristics (including demographic data at the time of cancer diagnosis)
- Descriptive data of cancer (including date of diagnosis, primary site*, histology, metastatic sites, extent of disease, staging etc.)
* Primary site, behavior, grade, and histology were coded
Statistical Methods
Morphologically Verified Cases (%MV):
The percentage of cases whose diagnosis were based on cytology or histology examination of tissue form primary site or metastasis site, peripheral blood and bone marrow aspiration, including autopsy specimens.
Childhood cancer:
The results for cancer in the childhood are presented according to the diagnostic groups defined in “International Classification of Childhood Cancer 1996” this was done by simply adding together the cases in age between 0-14 years old