Evaluating the reliability, validity and minimally important difference of the Taiwanese version of the diabetes quality of life (DQOL) measurement

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

ISSN: 1477-7525