Convergent validity
Correlations between the dimensions of CVID QoL and SF-36, PtGA, PhGA were shown in Table 2. QoL global, EF and RF scores showed good and moderate correlations with similar dimensions of SF-36. Three dimensions and QoL global showed good correlation with PtGA and the correlation between PtGA and PhGA was also significant (r value =.541, p< 0.001). Physical component summary (PCS) and mental component summary (MCS) total scores also showed good correlation with the QoL scores. (r=-.781, p<0.001; r=-.778, p<0.001).