The 20 principal natural categories (PNCs) with highest resource use
| PNC | Mean additional length of stay (days) | No of adverse events in each PNC | Total number of extra days in hospital |
|---|---|---|---|
| PNCs were only included if there were at least five adverse events to which extra hospital stay had been attributed. Those PNCs shown in bold text are also represented in the 20 most frequent PNCs. Rarer PNCs also associated with higher resource use due to additional lengths of stay of greater than 10 days per case are “Wound infection following vascular graft procedure” (17 extra days, 5 cases), “Infected orthopaedic implanted prosthetic device” (15 days, 8 cases). and “Iatrogenic renal failure (non-drug induced) perioperative” (11 days, 5 cases). The average additional length of stay shown in the table has been rounded to the nearest whole day. | |||
| Ongoing pain/restricted movement following back surgery | 22 | 22 | 474 |
| No, delay, inadequate investigations ischaemic heart disease | 13 | 34 | 451 |
| Wound infection following peripheral procedure | 11 | 29 | 314 |
| Incisional hernia: post-procedural | 10 | 27 | 271 |
| Postoperative bowel obstruction/adhesions | 13 | 21 | 271 |
| Injury due to fall in nursing home | 12 | 19 | 219 |
| Failed/blocked/ruptured/ aneurysm, vascular grafts | 13 | 17 | 215 |
| Recurrent incisional hernia | 9 | 20 | 190 |
| Pulmonary embolism postoperatively | 8 | 22 | 185 |
| Wound infection following abdominal/retroperitoneal/pelvic procedure | 5 | 35 | 178 |
| Catheter related urinary tract infection | 5 | 37 | 174 |
| GI bleed secondary to NSAID | 8 | 22 | 167 |
| Diagnosis delay/no/wrong, cancer large bowel | 15 | 9 | 131 |
| Failed hip replacement | 15 | 8 | 120 |
| Problems following radiation | 7 | 15 | 108 |
| Stiffness/restricted movement following joint surgery | 11 | 9 | 99 |
| Pressure sore/decubitus ulcer | 3 | 32 | 98 |
| Postoperative atelectasis/nosocomial pneumonia | 6 | 15 | 96 |
| Pancytopenia following chemotherapy | 11 | 8 | 90 |
| Bleeding related to warfarin therapy | 10 | 9 | 87 |