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Table 1 Participant characteristics [median (interquartile range)]

From: Pain, balance, and mobility in people 1 year after total knee arthroplasty: a non-randomized cross-sectional pilot study contrasting posterior-stabilized and medial-pivot designs

  PS-TKA
(n = 20)
MP-TKA
(n = 18)
Controls
(n = 19)
P value
Age (years) 71.00 (65.50 to 74.50) 75.00 (60.75 to 81.00) 68.00 (61.05 to 71.00) 0.191
Weight (kg) 68.25 (63.75 to 73.05) 67.50 (64.10 to 75.28) 57.00 (50.15 to 63.15) 0.010*
Height (m) 1.54 (1.49 to 1.58) 1.53 (1.48 to 1.61) 1.55 (1.49 to 1.60) 0.033*
BMI (kg/m2) 27.93 (26.94 to 30.35) 28.42 (26.68 to 29.75) 22.83 (21.36 to 24.93)  < 0.001*
Female:male 19:1 13:5 16:3 0.173
Months after operation (months) 13.00 (10.00 to 14.00) 12.00 (10.00 to 14.00) NA 0.511
At least one medication (% yes) 70.00% 72.00% 16.00% 0.007*
Falls 1 year before operation (% yes) 30.00% 11.00% NA 0.154
Trips 1 year before operation (% yes) 35.00% 28.00% NA 0.632
Falls after operation/in the last 12 months (% yes) 10.00% 6.00% 10.00% 0.825
Trips after operation/ in the last 12 months (% yes) 40.00% 28.00% 37.00% 0.443
Pre- vs post-operation falls 6 vs 2 2 vs 1 NA NS
Pre- vs post-operation trips 7 vs 8 5 vs 5 NA NS
Use of walking aids outdoor (% yes) 55.00% 62.00% 0.00% 0.343
  1. BMI body mass index, NS not significant, NA not applicable
  2. *Denotes significant difference at p < 0.05 using Kruskal–Wallis test
  3. Denotes significant difference from control at p < 0.05/3 using Mann–Whitney U test with Bonferroni adjustment