Table 1

Required data fields

Patient IDLocal hospital field
AgeIf >2 years = whole years, if <2 years = months
GenderMale, female
ASA scoreI, II, III, IV, V, not recorded
ImmunosuppressionDiabetes: Diet controlled, Tablet controlled, Insulin controlled, No
HIV: Yes—on antiretroviral therapy; Yes—not on antiretroviral therapy, No, Unknown
Steroids: Yes, No
Other immunosuppressive drugs (eg, azathioprine, methotrexate, biologic agents): Yes, No
Chemotherapy (current chemotherapy or if the last cycle was within 12 weeks of operation): Yes, No
Active malarial infection: Yes—confirmed by blood film or equivalent test, No
HIV: Yes—most recent preoperative CD4 count
Smoking statusCurrent smoker (including those who stopped smoking within the last 6 weeks), Previous smoker, Never smoked, Unknown
Date and time of admissionDD/MM/YYYY HH:MM
Date and time operation started (knife to skin time)DD/MM/YYYY HH:MM
Length of operation (knife to skin until point of completion)Minutes
Urgency of operationEmergency (any surgery on the same admission as diagnosis), Semielective, Elective (any planned admission for surgery)
Was a surgical safety checklist used (WHO or an equivalent)?Yes, No—but available in this centre, No—not available in this centre
Initial operative approachOpen midline, Open non-midline, Laparoscopic, Laparoscopic converted to open, Robotic, Robotic converted to open
Primary operation performedPick from drop-down list; pick single main procedure performed
Appendicectomy—Appearance at surgery: simple (non-perforated), complex (perforated, free pus), normal
Appendicectomy—Duration of symptoms (eg, abdominal pain) prior to surgery (days 0, 1, 2, 3, 4, 5, 6, 7+)
Main surgical pathology/indication (the main cause leading to surgery)Malignant (proven or suspected tumour/cancer), Benign
Intraoperative contaminationClean contaminated: GI tract entered but no gross contamination
Contaminated: GI tract entered with gross spillage or major break in sterile technique
Dirty: There is already contamination prior to operation (eg, with faeces or bile)
Antibiotic use
Used for treatment before surgery (eg, trial of antibiotics to treat diverticular abscess)Yes (total days), No
Used for prophylaxis at the point of incision (ie, standard hospital prophylaxis)Yes, No
Continued at the end of surgery (ie, extended prophylaxis after surgery)Yes (total days), No
Was epidural analgesia inserted on the day of surgery?Yes, No
Were NSAIDs used postoperatively during the first 5 days of after surgery? (including ibuprofen, naproxen, diclofenac, ketorolac and etoricoxib, excluding aspirin)Yes, No
Was serum haemoglobin/haematocrit checked in the first 48 hours postoperatively?Yes—serum haemoglobin, Yes—capillary PCV, No—but tests available in this centre, No—tests not available in this centre
Was serum creatinine checked in the first 48 hours postoperatively?Yes, No—but available in this centre, No—not available in this centre
Length of postoperative stayDays
Surgical site infection
Prior to dischargeYes, No
At 30 days after surgeryYes, No, Not assessed after discharge
If yes: Was a wound swab sent for microbiological culture: Yes, No—but available in this centre, No—not available in this centre
If yes: How was this treated: operative drainage, wound opened outside of operating theatre, antibiotics (tick all that apply)
What bacteria, if any, were identified?None, Staphylococcus aureus, Coliform, Anaerobe, Other (five tick boxes)
If yes: Sensitivity: sensitive to antibiotic prophylaxis given; resistant to antibiotic prophylaxis given; sensitivities not tested—but available in this centre; sensitivities not tested—not available in this centre
30-day unexpected reintervention. Record the most serious reinterventionYes—surgical, Yes—endoscopic, Yes—interventional radiology, No
30-day mortalityDead, Alive, Unknown. If died: postoperative day of death
30-day intra-abdominal/pelvic abscess (CT, ultrasound or clinical (including reoperation) evidence of intra-abdominal or pelvic abscess)Yes, No
Other hospital-acquired infection (treated with or without antibiotics)Yes—urinary tract infection, Yes—pneumonia, Yes—central venous line infection, Yes—peripheral line infection, Yes—other, No
How was 30-day follow-up status achieved? (all applicable)Still an inpatient, Clinic review, Telephone review, Community/home review, Discharged before 30 days and not contacted again
  • ASA, American Society of Anaesthesiologists; GI, gastrointestinal; NSAID, non-steroidal anti-inflammatory drug; PCV, packed cell volume.