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Table 1 Baseline characteristics

From: Predictive value of adipose to muscle area ratio based on MRI at knee joint for postoperative functional outcomes in elderly osteoarthritis patients following total knee arthroplasty

Parameter

Continuous variables: mean ± SD; categorical variables: frequency (%)

Age (years)

67.78 ± 4.91

BMI (kg/m2)

26.90 ± 2.11

Sex

 Male

35 (44.9%)

 Female

43 (55.1%)

AMR

2.36 ± 0.69

Side

 Right

43 (55.1%)

 Left

35 (44.9%)

Follow-up (months)

31.91 ± 6.49

KSS score

 KSS knee-pre

49.14 ± 9.92

 KSS function-pre

56.54 ± 11.47

 KSS total-pre

105.68 ± 20.84

 KSS knee-post

89.91 ± 5.23

 KSS function-post

91.60 ± 6.77

 KSS total-post

181.51 ± 11.05

HSS score

 HSS-pre

47.77 ± 8.34

 HSS-post

91.74 ± 4.77

  1. SD standard deviation, BMI body mass index, AMR adipose to muscle area ratio, KSS score the Knee Society Score, HSS score the Hospital for Special Surgery knee score