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Table 1 Characteristics of the study population

From: Predicting short stay total hip arthroplasty by use of the timed up and go-test

   Total Fast recovery
LOS 1 night
Normal recovery
LOS ≥2 nights
  (< 36 h) (≥36)
n = 1559 n = 631 n = 928
Preoperative
 Age mean (SD) 69.8 (9.3) 66.1 (8.3) 72.4 (9.1)
 Sex % women 68.8 55.9 77.6
 BMI (kg/m2) mean (SD) 27.2 (4.5) 26.9 (4.2) 27.4 (4.7)
Social status
 Living together % 68.5 84.3 57.7
 Help nearby % 10.7 7.7 12.7
 Living alone % 20.8 7.9 29.5
ASA score
 I % 25.0 35.7 17.8
 II % 59.8 57.3 61.6
 II/IV % 15.2 7.0 20.6
TUG (sec) mean (SD) 10.8 (5.8) 8.8 (4.2) 12.1 (6.4)
HOOS-PS mean (SD) 44.5 (17.3) 41.3 (16.5) 46.7 (17.6)
Peroperative
 Anesthesia
  General % 53.9 54.5 53.4
  Spinal % 46.1 45.5 46.6
Postoperative
 LOS mean (SD) 2.0 (1.3)   
Discharge location
 Home % 89.0 98.1 82.8
 Rehabilitation % 11.0 1.9 17.2
  1. LOS Length of hospital stay, BMI Body mass index, ASA American Society of Anesthesiologists classification, TUG Timed up and go test, HOOS-PS The Hip disability and Osteoarthritis Outcome Score - Physical Function Short Form, SD Standard deviation