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. 2006 Nov;65(Suppl 3):iii16–iii21. doi: 10.1136/ard.2006.059279

Table 2 Clarity scores (per cent unclear).

N Score (standard error)
Capability Items (Are you able to …?) 219 8.9 (0.43)
Performance Items (Did you …?) 48 15.8 (1.23)
HAQ‐DI (Legacy) 20 5.8 (0.56)
HAQ‐DI (Rewritten) 20 5.4 (0.68)
PF‐10 (Legacy) 10 12.5 (1.60)
PF‐10 (Rewritten) 10 10.8 (1.06)