Table 1 Baseline characteristics of patients who underwent knee arthroplasty (n = 1136).

From: Expectation fulfillment is associated with good outcomes and patient satisfaction after knee arthroplasty: a prospective study in a multi-ethnic Asian population

Baseline characteristics

 

Age, years

65.9 (7.0)

Female, n (%)

794 (69.9)

Ethnicity

 Chinese, n (%)

954 (84.0)

 Malay, n (%)

84 (7.4)

 Indian, n (%)

82 (7.2)

 Others, n (%)

16 (1.4)

Type of arthroplasty

 UKA, n (%)

91 (8.0)

 TKA, n (%)

1045 (92.0)

 Unilateral, n (%)

1075 (94.6)

 Bilateral, n (%)

60 (5.3)

Highest education level

 Primary or below, n (%)

464 (40.8)

 Secondary or above, n (%)

672 (59.2)

BMI, kg/m2

28.3 (4.7)

 FCI (0–18)

2.2 (1.1)

Radiographic severity of index knee

 KL grade 0–3, n (%)

469 (41.3)

 KL grade 4, n (%)

661 (58.2)

HADS-A (0–21)

3.9 (4.1)

HADS-D (0–21)

2.9 (3.1)

LSNS (0–60)

32.5 (9.9)

Baseline WOMAC pain* (0–20)

6.8 (3.3)

Baseline WOMAC function* (0–68)

19.4 (10.6)

  1. *Original ordinal scale is shown.
  2. All figures are given in mean (SD) unless otherwise specified.
  3. Abbreviations: BMI, body mass index; FCI, Functional Comorbidity Index; HADS-A, Hospital Anxiety and Depression Scale-Anxiety; HADS-D, Hospital Anxiety and Depression Scale-Depression; KL, Kellgren and Lawrence; LSNS, Lubben Social Network Scale; TKA, total knee arthroplasty; UKA, uni-compartmental knee arthroplasty; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.
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