Table 4.

Correlation matrix and square root of the average variance extracted. Note: The elements on the diagonal represent the square root of the average variance extracted, and off-diagonal elements represent the correlations between the constructs.

Dimension	PUa	PEb	HLc	PSd	CEe	AUf	BIg
PU	0.73	0.72	0.24	0.10	0.59	0.71	0.62
PE	0.72	0.72	0.45	0.24	0.69	0.71	0.72
HL	0.24	0.45	0.74	0.36	0.48	0.26	0.33
PS	0.10	0.24	0.36	0.87	0.33	0.30	0.19
CE	0.59	0.69	0.48	0.33	0.71	0.70	0.65
AU	0.71	0.71	0.26	0.30	0.70	0.75	0.74
BI	0.62	0.72	0.33	0.19	0.65	0.74	0.83

^aPU: perceived usefulness.

^bPE: perceived ease of use.

^cHL: health literacy.

^dPS: privacy and security.

^eCE: computer self-efficacy.

^fAU: attitude toward use.

^gBI: behavioral intention to use.