Table 2 Divergent validity of the MHISS with other variable scores.

Variable score	Spearman correlation coefficient (r)
Mouth opening	0.34
Cochin hand function scale	0.37
HAQ	0.33
Anxiety (HADa)	0.17
Depression (HADd)	0.26
McMaster‐Toronto Arthritis questionnaire	0.11

HAQ, Health Assessment Questionnaire; HAD, Hospital Anxiety and Depression scale; HADa, HAD anxiety; HADd, HAD depression.