Table 2.

Correlations between baseline clinical measures of gout severity, SF-36 subscales, and the HAQ-DI.

SubscalePresence of Tophi
No. of Swollen Joints
No. of Painful Joints
No. of Flares, Past year
Serum Uric Acid Level
Disease Duration
CorrelationCorrelationCorrelationCorrelationCorrelationCorrelation
Bodily pain0.190*−0.348***−0.624***−0.547***−0.027−0.009
General health0.402***−0.192−0.393**−0.302**−0.116−0.023
Mental health0.118−0.188−0.457***−0.296**0.0190.140
Physical functioning0.163−0.286**0.483***−0.239*−0.0600.005
Role-emotional0.084−0.160−0.413***−0.353***0.0730.015
Role-physical0.202*−0.325**−0.562***−0.444***−0.0270.003
Social functioning0.196*−0.304**−0.591***−0.379***0.0780.015
Vitality0.191*−0.197−0.480***−0.295**−0.1320.141
PCS0.277**−0.334**−0.544***−0.369**−0.105−0.015
MCS0.077−0.139−0.436***−0.321**−0.0010.087
HAQ-DI−0.1780.443***0.650**0.2780.125−0.014
  • SF-36 subscale score range 0–100, higher score = better functioning. HAQ-DI score range: 0–3, higher score = worse functioning. * p ≤0.05,** p < 0.01, *** p ≤0.001. PCS: physical component summary score; MCS: mental component summary score.