“…Functional decline [20,34] Vision impairment [47,48] Physical challenges (eg, back pain, knee injury) [32,35,36] Illness conditions Low literacy [49,50] English language literacy [51,52] Basic health knowledge [53,54] Digital literacy [52,55,56] Information literacy [24,33,43] Health literacy [27,57] eHealth literacy Low self-efficacy [18,49,58,59] Low efficacy and anxiety associated with computer use [49,60,61] Low efficacy in reading and learning [62,63] Low efficacy in OHIS a [55,62] Low efficacy in health information evaluation Negative attitudes [39] Attitude toward internet use [42] Attitude toward technology [20,61,64] Privacy concerns Health beliefs [45] External locus of control [31] Fatalistic beliefs…”