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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