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Table 2 Incidence of postoperative pain

From: The length of stay in the post-anaesthesia care unit correlates with pain intensity, nausea and vomiting on arrival

   Pain on admittance,n(%) Pain before discharge,n(%)
   NRS 0 NRS 1–4 NRS 5–10 NRS 0 NRS 1–4 NRS 5–10
Gender Women 4,085 (69) 1,528 (26) 279 (5) 5,029 (85) 857 (15) 6 (0)*
Men 4,775 (76) 1,268 (20) 270 (4)** 5,539 (88) 770 (12) 4 (0)*,**
Age <40 years 801 (61) 416 (32) 95 (7) 1,030 (78) 281 (21) 1 (1)*
40–80 years 5,789 (72) 1,850 (23) 370 (5)** 6,915 (86) 1,087 (14) 7 (0)*
>80 years 2,244 (78) 530 (19) 84 (3)** 2,597 (91) 259 (9) 2 (0)*,**
ASA classification ASA I 1,370 (69) 510 (26) 98 (5) 1,644 (83) 332 (17) 2 (0)*
ASA II 4,008 (73) 1,246 (23) 253 (4)** 4,763 (86) 768 (14) 3 (0)*,**
ASA III 3,375 (74) 1,009 (22) 194 (4)** 4,066 (89) 508 (11) 4 (0)*,**
ASA IV 81 (70) 31 (27) 4 (3) 96 (83) 19 (16) 1 (1)*
Surgical specialities General surgery 4,872 (67) 1,961 (27) 404 (6) 6,081 (84) 1,151 (16) 5 (0)*
Cardiac surgery 561 (84) 96 (14) 10 (2) 620 (93) 47 (7) 0 (0)*,**
Orthopaedic surgery 433 (64) 194 (29) 48 (7)** 548 (81) 127 (19) 0 (0)*,**
Spine surgery 403 (67) 155 (26) 45 (7) 499 (83) 102 (17) 2 (0)*
Urology 1,357 (86) 198 (12) 29 (2)** 1,496 (94) 88 (6) 3 (0)*,**
Ophthalmology 1,102 (87) 160 (13) 5 (0)** 1,188 (94) 79 (6) 0 (0)*,**
ENT surgery 120 (82) 25 (17) 1 (1)** 131 (90) 15 (10) 0 (0)*,**
Anaesthetic technique MAC 391 (89) 42 (10) 3(1)** 404 (93) 32 (7) 0 (0)*,**
Peripheral RA 64 (84) 12 (16) 0 (0)** 71 (93) 5 (7) 0 (0)*
Central neuraxial RA 973 (92) 62 (7) 13 (1)** 966 (92) 82 (8) 0 (0)*,**
General anaesthesia 6,220 (69) 2,303 (26) 456 (5) 7,692 (85) 1,280 (15) 7 (0)
Combined anaesthesia 1,187 (73) 377 (23) 68 (4) 1,411 (86) 228 (14) 1 (0)*
Duration of anaesthesia <60 min 162 (83) 30 (15) 4 (2) 176 (90) 20 (10) 0 (0)*
60–180 min 6,042 (77) 1,610 (20) 236 (3) 6,973 (88) 909 (12) 6 (0)*
>180 min 2,630 (64) 1,156 (28) 309 (8)** 3,393 (83) 698 (17) 4 (0)*,**
Intensity of nursing care PACU 7,288 (66) 1,986 (21) 329 (5) 8,417 (88) 1,181 (12) 5 (0)*
IMC 1,583 (62) 778 (30) 215 (8)** 2,146 (83) 427 (17) 3 (0)*,**
  1. ASA classification American Society of Anesthesiologists’ classification, ENT ear-nose-throat, IMC intermediate care (more complex, intermediate care patients, NEMS >15), MAC monitored anaesthesia care, NRS numeric rating scale, PACU post-anaesthesia care unit (regular post-anaesthesia care unit patients, NEMS ≤15), RA regional anaesthesia.
  2. *p <0.05 (comparison admittance-discharge), **p <0.05 (gender: comparison with women; age: comparison with age <40 years; ASA classification: comparison with ASA I; surgical specialities: comparison with general surgery; anaesthetic technique: comparison with general anaesthesia; duration of anaesthesia: comparison with duration <60 min; intensity of nursing: comparison with PACU).