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Table 1 Participants’ characteristics

From: The impact of central sensitization on perioperative pain in TKA: a retrospective cohort study

 

All participants

n = 66

N group

n = 33

C group

n = 33

p-value

Age, years

mean (95%CI)

72.1 (70.7–73.4)

71.4 (69.7–73.2)

72.7 (70.7–74.7)

0.5226

Age, years

 < 65

7 (10.6)

3 (9.1)

4 (12.1)

0.2184

 65–74

35 (53.0)

22 (66.7)

13 (39.4)

 ≥ 75

24 (36.4)

8 (24.2)

16 (48.5)

Sex

 Male

15 (22.7)

6 (18.1)

9 (27.2)

0.7690

 Female

51 (77.3)

27 (81.9)

24 (72.8)

BMI

 < 25

28 (42.4)

17 (51.5)

11 (33.3)

0.3191

 ≥ 25

38 (57.6)

16 (48.5)

22 (66.7)

KL grade

 KL-3

19 (28.8)

9 (27.3)

10 (30.3)

0.7857

 KL-4

47 (71.2)

24 (72.7)

23 (69.7)

PSEQ

 < 40

41 (62.1)

17 (51.5)

24 (72.7)

0.0757

 ≥ 40

25 (37.9)

16 (48.5)

9 (27.3)

 

BS-POP

 Normal BS-POP

50 (75.8)

28 (84.8)

22 (66.7)

0.0848

 Abnormal BS-POP

16 (24.2)

5 (15.2)

11 (33.3)

  1. The data are presented as n (%)
  2. BMI body mass index, KL grade Kellgren‒Lawrence grade, PSEQ Pain Self-Efficacy Questionnaire, BS-POP Brief Scale for Psychiatric Problems in Orthopedic Patients