1,2. surgery: 1,2. Age: 1,9. Hospital_Number: ignore. rectal_temperature: continuous. pulse: continuous. respiratory_rate: continuous. temperature_of_extremities: 1,2,3,4. peripheral_pulse: 1,2,3,4. mucous_membranes: 1,2,3,4,5,6. capillary_refill_time: 1,2,3. pain: 1,2,3,4,5. peristalsis: 1,2,3,4. abdominal_distension: 1,2,3,4. nasogastric_tube: 1,2,3. nasogastric_reflux: 1,2,3. nasogastric_reflux_PH: continuous. rectal_examination: 1,2,3,4. abdomen: 1,2,3,4,5. packed_cell_volume: continuous. total_protein: continuous. abdominocentesis_appearance: 1,2,3. abdomcentesis_total_protein: continuous. outcome: 1,2,3.