| 1. | exp Preoperative Care/ or exp Perioperative Care/ or exp Perioperative Period/ or exp Perioperative Nursing/ |
| 2. | ((pre-operative* or preoperative* or preop* or pre-op* or pre-surg* or presurg*) adj3 (care* or caring or treat* or nurs* or monitor* or recover* or medicine)).ti,ab. |
| 3. | ((perioperative* or peri-operative* or intraoperative* or intra-operative* or intrasurg* or intra-surg* or peroperat* or per-operat*) adj3 (care* or caring or treat* or nurs* or monitor* or recover* or medicine)).ti,ab. |
| 4. | ((postoperative* or postop* or post-op* or post-surg* or postsurg*) adj3 (care* or caring or treat* or nurs* or monitor* or recover* or medicine)).ti,ab. |
| 5. | ((care* or caring or treat* or nurs* or recover* or monitor*) adj3 (before or prior or advance or during or after) adj3 (surg* or operat* or anaesthes* or anesthes*)).ti,ab. |
| 6. | 1 or 2 or 3 or 4 or 5 |
| 7. | (intraoperative* or intra-operative* or intrasurg* or intra-surg* or peroperat* or per-operat* or perioperat* or peri-operat*).ti,ab. |
| 8. | ((during or duration) adj3 (surg* or operat* or anaesthes* or anesthes*)).ti,ab. |
| 9. | 7 or 8 |
| 10. | postoperative care/ or exp Postoperative Period/ or exp Perioperative nursing/ |
| 11. | (postop* or post-op* or post-surg* or postsurg* or perioperat* or peri-operat*).ti,ab. |
| 12. | (after adj3 (surg* or operat* or anaesthes* or anesthes*)).ti,ab. |
| 13. | (post adj3 (operat* or anaesthes* or anesthes*)).ti,ab. |
| 14. | 10 or 11 or 12 or 13 |
| 15. | exp Preoperative Care/ or Preoperative Period/ |
| 16. | (pre-operat* or preoperat* or pre-surg* or presurg*).ti,ab. |
| 17. | ((before or prior or advance or pre or prepar*) adj3 (surg* or operat* or anaesthes* or anesthes*)).ti,ab. |
| 18. | 15 or 16 or 17 |
| 19. | 6 or 9 or 14 or 18 |
| 20. | letter/ |
| 21. | editorial/ |
| 22. | news/ |
| 23. | exp historical article/ |
| 24. | Anecdotes as Topic/ |
| 25. | comment/ |
| 26. | case report/ |
| 27. | (letter or comment*).ti. |
| 28. | or/20-27 |
| 29. | randomized controlled trial/ or random*.ti,ab. |
| 30. | 28 not 29 |
| 31. | animals/ not humans/ |
| 32. | exp Animals, Laboratory/ |
| 33. | exp Animal Experimentation/ |
| 34. | exp Models, Animal/ |
| 35. | exp Rodentia/ |
| 36. | (rat or rats or mouse or mice).ti. |
| 37. | or/30-36 |
| 38. | 19 not 37 |
| 39. | limit 38 to English language |
| 40. | (exp child/ or exp pediatrics/ or exp infant/) not (exp adolescent/ or exp adult/ or exp middle age/ or exp aged/) |
| 41. | 39 not 40 |
| 42. | economics/ |
| 43. | value of life/ |
| 44. | exp “costs and cost analysis”/ |
| 45. | exp Economics, Hospital/ |
| 46. | exp Economics, medical/ |
| 47. | Economics, nursing/ |
| 48. | economics, pharmaceutical/ |
| 49. | exp “Fees and Charges”/ |
| 50. | exp budgets/ |
| 51. | budget*.ti,ab. |
| 52. | cost*.ti. |
| 53. | (economic* or pharmaco?economic*).ti. |
| 54. | (price* or pricing*).ti,ab. |
| 55. | (cost* adj2 (effectiv* or utilit* or benefit* or minimi* or unit* or estimat* or variable*)).ab. |
| 56. | (financ* or fee or fees).ti,ab. |
| 57. | (value adj2 (money or monetary)).ti,ab. |
| 58. | or/42-57 |
| 59. | 41 and 58 |
From: Evidence review for preoperative risk stratification tools
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