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Table 1 Cohort characteristics

From: Minimal important improvement thresholds for the six-minute walk test in a knee arthroplasty cohort: triangulation of anchor- and distribution-based methods

  Randomised cohort
n = 166
Observational cohort
n = 77
Entire cohort
n = 243
Age, yrs, mean (sd) 67.0 (8.3) 66.7 (8.7) 66.9 (8.4)
Gender, female, n (%) 112 (68) 35 (45) 147 (61)
Body mass index, mean (sd) 34.7 (7.0) 33.0 (7.2) 34.2 (7.1)
Baseline 6-min walk test, mean (sd) 319.1 (109.1) 329.5 (114.0) 322.4 (110.6)
Baseline Oxford Knee Score 17.0 (7.1) 17.6 (7.7) 17.2 (7.3)
Comorbidity, yes, n (%) 127 (77) 53 (69) 180 (75)
 Cardiovascular 116 (70) 47 (61) 163 (67)
 Gastrointestinal 53 (32) 11 (14) 64 (26)
 Other lower limb or back 43 (26) 21 (27) 64 (26)
 Diabetes Mellitus 38 (23) 18 (23) 56 (23)
 Respiratory 21 (13) 10 (13) 31 (13)
  1. Key: Five most common comorbidities shown