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Table 2 Preoperative WOMAC, KSS, CES-D10, and pain VAS scores according to patients’ characteristics*

From: Factors affecting the quality of life after total knee arthroplasties: a prospective study

  Gender Age BMI Level of education Social support Residence
male female <65 years ≥ 65 years <30 ≥30 low§ high yes no rural urban/semi-
WOMAC scale
Pain 10.3(4.5) 12.2(3.8) †† 12.4(3.4) 11.6(4.2) 11.1(4.1) 12.4(3.8)† 12.3(4.2) 11.7(3.9) 11.8(4.1) 11.7(3.5) 11.7(4.5) 11.9(3.7)
Function 34.7(14.1) 39.6(10.1)† 37.8(12.4) 38.6(10.9) 36.2(11.6) 40.5(10.6)† 42.1(10.7) 37.9(11.3) 38.3(11.9) 39.5(7.3) 38.7(12.7) 38.4(10.3)
Stiffness 3.6(1.8) 4.2(1.5)† 3.9(1.7) 4.1(1.6) 3.9(1.6) 4.2(1.6) 4.6(1.3) 3.9(1.6) 4.1(1.6) 3.9(1.6) 4.1(1.5) 4.0(1.7)
KSS
Knee score 45.3(18.8) 39.2(17.6)† 38.8(19.3) 41.4(17.6) 41.3(19.6) 39.9(16.6) 38.9(15.8) 41.6(18.2) 40.41(18.4) 41.1(16.0) 40.9(18.3) 40.3(17.9)
Function score 37.5(13.2) 32.5(11.7)† 37.5(15.9) 33.9(10.4) 36.1(13.7) 33.03(10.4) 33.6(10.5) 34.61(12.4) 34.8 (11.9) 32.5(12.7) 34.1(11.2) 34.7(12.7)
CES-D10 5.9(6.1) 10.4(6.4)†† 10.0(6.5) 8.8(6.6) 8.1(0.7) 9.9(0.6) 9.8(6.8) 8.8(6.7) 8.7(6.6) 11.3(6.1)† 9.5(6.8) 8.9(6.5)
Pain VAS 7.9(2.1) 9.0(1.6)†† 9.0(1.4) 8.6(1.9) 8.5(2.0) 9.0(1.4) 9.9(1.6) 8.7(1.8) 8.6(1.8) 9.2(1.3) 8.6(2.0) 8.8(1.6)
  1. * Values are mean ± SD; † P < 0.05, †† P < 0.01; §Elementary or less.
  2. WOMAC scores: pain 0–20, function 0–68, stiffness 0–8; higher scores indicate greater difficulty.
  3. KSS: Knee score 100–0, Functional score 100–0, higher scores indicate better health state.
  4. CES-D10 scores: > 10 indicate depression; Pain VAS: 0–10, better to worse.