Table 2.
Convergent/discriminant validity the DQOL†
| DQOL SAT‡ |
DQOL IMP‡ |
DQOL WOR‡ |
DQOL ALL‡ |
|
| D-39 | ||||
| Diabetes control | -0.57§ | -0.66 | -0.54 | -0.70 |
| Energy and mobility | -0.57 | -0.68 | -0.54 | -0.71 |
| Social burden | -0.46 | -0.65 | -0.47 | -0.64 |
| Anxiety and worry | -0.51 | -0.59 | -0.46 | -0.62 |
| Sexual functioning | -0.30 | -0.37 | -0.29 | -0.38 |
| RAND-12 | ||||
| PHC# | -0.53 | -0.72 | -0.57 | -0.73 |
| MHC# | -0.50 | -0.68 | -0.53 | -0.69 |
† Values in the cells are Pearson's correlation coefficients: weak (0–0.39), moderate (0.40–0.69), and strong (≥ 0.7)
‡ SAT: satisfaction; IMP: impact; WOR: worry; ALL: overall
§ Negative value in Pearson's correlation coefficients is due to better HRQOL indicated by lower scores for the DQOL and the D-39S and higher scores for the RAND-12
# PHC: physical health composite; MHC: mental health composite