Group mean disability index (DI) scores in the HAQ90 and HAQ99 using two different calculation methods
↵3-150 The HAQ90 version can only be calculated in the alternative method (that is, without correcting for devices).
↵3-151 HAQ90 versus HAQ99 standard, p<0.001.
↵3-152 HAQ90 versus HAQ99 alternative, not significant.