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Table 1 Patient characteristics

From: Increasing comorbidity is associated with worsening physical function and pain after primary total knee arthroplasty

 

Overall study Cohort

(n = 124)

Mean ± SD (range)

Cohort with WOMAC and SF-36 data (n = 93)

Mean ± SD (range)

Cohort with SF-36 data only (n = 31)

Mean ± SD (range)

Age at index surgery, years

71.7 ± 6.9 (58.6–89.2)

72.6 ± 7.4 (59.8–89.2)

69.0 ± 4.3 (58.6–77.6)

Male/total

123/124

92/93

31/31

Dates index TKA performed

August 1993- October 2005

April 2001- October 2005

August 1993- August 1996

Duration of post-op follow-up, years

4.9 ± 2.9 (1.3–11.4)

3.5 ± 1.2 (1.5–6.0)

9.2 ± 1.9 (1.3–11.4)

Charlson score at post-TKA baseline

0.58 ± 1.00 (0–3)

0.60 ± 0.89 (0–2)

0.57 ± 1.13 (0–3)

Charlson score at interval 5 post-TKA

1.85 ± 1.54 (0–5)

1.53 ± 1.50 (0–5)

2.7 ± 1.38 (1–5)

Medical subscale score of the novel indexaat post-TKA baseline (range 0-47)

3.7 ± 1.4 (2–6.5)

3.7 ± 1.03 (2.5–5)

3.8 ± 1.6 (2–6.5)

Medical subscale score of the novel indexaat interval 5 post-TKA (range 0-47)

7.6 ± 3.6 (2–16.5)

7.1 ± 3.5 (2–13.5)

9.0 ± 3.8 (6–16.5)

Local subscale score of the novel indexaat post-TKA baseline (range 0-10)

5.2 ± 1.2 (2.5–7)

5.1 ± 0.6 (4.5–6)

5.3 ± 1.5 (2.5–7)

Local subscale score of the novel indexaat interval 5 post-TKA (range 0-10)

1.6 ± 1.2 (0–3)

1.70 ± 1.3 (0–3)

1.4 ± 1.1 (0–3)

  1. a Novel index, novel medical/surgical comorbidity severity index