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Table 1 Mean (SD) of the baseline values and group differences in the subject sample.

From: Clinical predictors of elective total joint replacement in persons with end-stage knee osteoarthritis

  Sample (n) All Subjects Had TKA (n = 40) No TKA (n = 80) p-value
Age (years) 111 59.5 (9.7) 63.3 (8.3) 57.6 (9.8) 0.002*
Affected joint (Bi/Unilateral %) 120 44/56 46/54 43/57 0.845
Sex, M/F (%) 120 49/51 46/54 50/50 0.702
Body Mass Index (kg/m2) 115 32.2 (6.5) 32.5 (7.0) 32.0 (6.4) 0.740
TUG (s) 117 8.8 (2.5) 9.5 (2.3) 8.5 (2.5) 0.034*
SCT (s) 115 16.0 (8.8) 19.4 (10.8) 14.4 (7.0) 0.012*
KOS-ADLS (%) 99 58.2 (22.0) 51.1 (19.5) 61.5 (22.4) 0.027*
Quad Strength (Inv.) (N/BMI) 115 22.5 (11.4) 18.9 (9.1) 24.2 (12.0) 0.010*
Quad Strength (Uninv.) (N/BMI) 115 26.9 (11.1) 23.8 (9.4) 28.4 (11.5) 0.037*
Extension ROM (degrees) 120 1 (5) 3 (6) 0 (4) 0.013*
Flexion ROM (degrees) 120 125 (16) 124 (11) 125 (18) 0.671