“…The top three theories were the DT, theory of reasoned action/planned behavior (TRA), and protection motivation theory (PMT). As shown in Table 3, 12 studies relied on the DT [3, 12, 19, 26-28, 55, 62, 63, 66, 69, 70], whereas the TRA was used in seven studies [5,10,11,22,23,61,67] and PMT in five studies [9,20,21,24,74]. Both the rational choice theory (RCT) and social cognitive theory (SCT) have been adopted in three studies.…”