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Table 2 General and clinical characteristics in all patients and comparison before and after the establishment of regional rheumatoid and degenerative arthritis center

From: Establishment of a qualified integrated care system after total knee arthroplasty as a role of regional rheumatoid and degenerative arthritis centers

Variables

All

BEC

AEC

p value

Numbers

845

166 (19.6)

679 (80.4)

 

Age

72.0 ± 5.8

71.1 ± 5.8

72.2 ± 5.7

0.03 *

 ≤ 59

16 (1.9)

4 (2.4)

12 (1.8)

0.108

60–69

258 (30.5)

63 (38.0)

195 (28.7)

 

70–79

501 (69.3)

88 (53.0)

413 (60.8)

 

 ≥ 80

70 (8.3)

11 (6.6)

59 (8.7)

 

Elderly (≥ 65)

769 (91.0)

147 (88.6)

622 (91.6)

0.227

Old-elderly (≥ 70)

571 (67.6)

99 (59.6)

472 (69.5)

0.016 *

Very elderly (≥ 80)

70 (8.3)

59 (8.7)

11 (6.6)

0.436

Sex (female)

735 (87.0)

151 (91.0)

584 (86.0)

0.095

Op site (Right)

361 (42.7)

73 (44.0)

288 (42.4)

0.727

BMI

26.4 ± 3.4

27.1 ± 3.2

26.2 ± 3.5

0.003 **

Weight

62.1 ± 9.7

62.8 ± 8.9

62.0 ± 9.9

0.323

Obesity

528 (62.5)

124 (74.7)

404 (59.5)

 < 0.001 **

LOS

16.6 ± 2.4

16.7 ± 2.3

16.5 ± 2.5

0.371

Rehabilitation

407 (48.2)

5 (3.0)

402 (59.2)

 < 0.001 **

VAS

5.8 ± 0.5

5.7 ± 0.8

5.8 ± 0.4

0.094

K-L grade

 3/4

222 (26.3)/623 (73.7)

57 (34.3)/109 (65.7)

165 (24.3)/514 (75.7)

0.01 *

Underlying diseases

 HTN

564 (66.7)

121(72.9)

443 (65.2)

0.066

 DM

174 (20.6)

34 (20.5)

140 (20.6)

1

  1. Values are the mean ± standard deviation or numbers (%)
  2. EC, the establishment of regional rheumatoid and degenerative arthritis center, BEC before EC, AEC after EC, Op operation, BMI body mass index, LOS length of stay, VAS visual analogue scale, K-L Kellgrene-Lawrence, HTN hypertension, DM diabetes mellitus
  3. * p < 0.05
  4. ** p < 0.01