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Table 3 Comparison of subgroup proportions across cohorts (research question 1; findings resulting in accepted hypotheses in bold)

From: Construct validity of the OCTOPuS stratification algorithm for allocating patients with knee osteoarthritis into subgroups

  Low muscle strength subgroup High muscle strength subgroup Obesity subgroup
  N (%) Difference with total sample N (%) Difference with total sample N (%) Difference with total sample
Total sample 421 (35%)   213 (18%)   547 (48%)  
AMS-OA (5) 167 (30%) −5% 79 (14%) −4% 307 (56%) + 8%
STABILO (17) 60 (38%) + 3% 37 (23%) + 5% 62 (39%) −9%
NEXA (18) 33 (33%) −2% 23 (23%) + 5% 44 (44%) −4%
CBT (19) 94 (42%) + 7% 16 (7%) −11% 112 (51%) + 2%
VIDEX (20) 67 (38%) + 3% 58 (33%) + 15% 52 (29%) −19%