“…Table 1 shows the characteristics of all identified measures ( n = 19) assessing generic health literacy among adults. Most of the studies [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ] ( n = 17) were conducted in developed countries and regions (including the United States, European countries, Korean, Japan, and China (Taiwan)), few of them [ 49 , 50 , 51 , 52 ] ( n = 2) were developed in developing counties (Iran and Thailand). The administration time of identified measurements ranges from 1 to 60 min.…”