Data dictionary: Stomach and esophageal cancer - DUCA

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This is a summary of the variables available in the database. You can download the complete data dictionary. Click here to learn more.

Table 1: Healthcare Facility Information.

Variables
Health Facility
Unique Patient Number

Table 2: Patient Demographics.

Variables
Date of Birth
Gender

Table 3: Patient Medical History and Status.

Variables
Date of Death (if applicable)
Cause of Death
Previously registered comorbidities (Yes/No)

Table 4: Comorbidities and Dates.

Variables
Date of Comorbidities (usually same as 'consultation date' or 'operation date')
Myocardial Infarction
Congestive Heart Failure
Atrial Fibrillation/Flutter
Heart Rhythm Disorder (excluding atrial fibrillation)
Chronic Lung Disease
Peripheral Vascular Disease/Aortic Aneurysm
Cerebrovascular Disease (including CVA/TIA)
Dementia
Para-/Hemiplegia
Connective Tissue Disease (including rheumatoid diseases)
Gastrointestinal Ulcer Disease
Liver Disease
Liver Cirrhosis
Diabetes Mellitus
Kidney Disease
HIV/AIDS
Malignancy (excluding PCC or BCC of the skin)

Table 5: Surgical Information.

Variables
Hospital Patient Number
Date of Operation
Height (in cm)
Weight (in kg)
Weight Loss (in kg)
Liver Disease/Failure (Cirrhosis/Hepatitis)
Previous Abdominal or Thoracic Surgery (Yes/No)
Esophagus, Stomach, or Hiatal Surgery
Pancreas or Spleen Surgery
Hepatobiliary Surgery (including cholecystectomy)
Intestinal Surgery (including stoma construction)
Surgery on Bladder, Prostate, Uterus, or Ovary
Surgery on Lung, Heart, or Mediastinum
Other Abdominal or Thoracic Surgeries
Use of Immunosuppressants (Yes/No)
WHO/ECOG Performance Status before primary surgical or neoadjuvant treatment

Table 6: Tumour Specific Information.

Variables
Date of First Biopsy
Histological Type of Tumour
Primary Tumour or Recurrence
Distance (by endoscopy) from the tooth row to the upper border of the tumour (in cm)
Distance (by endoscopy) from the tooth row to the lower border of the tumour (in cm)
Distance (by endoscopy) from the tooth row to the Z-line (in cm)
Distance (by endoscopy) from the tooth row to the diaphragm (in cm)
Pre-operative Ultrasound/CT Scan of Neck (Yes/No)
Pre-operative CT Scan of Thorax (Yes/No)
Pre-operative CT Scan of Abdomen (Yes/No)
Pre-operative PET (PET-CT) Scan (Yes/No)
Pre-operative EUS (Yes/No)
Pre-operative EUS with Puncture (Yes/No)
Staging Laparoscopy Performed (Yes/No)
Date of Staging Laparoscopy

Table 7: Postoperative Complications.

Variables
Pulmonary Complications
Cardiac Complications
Gastrointestinal Complications
Urological Complications
Thrombo-embolic Complications
Neurological/Psychiatric Complications
Infections
Other Complications (specify if other)

Table 8: COVID-19 Related Variables.

Variables
Suspected or Tested for SARS-CoV-2 before Admission?
Date of First Suspicion of SARS-CoV-2 Infection
Date of First Specific Test for SARS-CoV-2 Infection
Date of First Positive Lab Test for SARS-CoV-2
Final Status Regarding SARS-CoV-2
COVID-19 Related Complications (specify if other)