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. 2021 Mar 3;2(2):254–258. doi: 10.1093/ehjdh/ztab019

Table 2.

Application programming interface messaging for the May Measurement Month campaign in 2020 in Korea

Age of the participants
20–25 26–30 31–40 41–50 Total
Message sent 13 350 11 498 36 519 36 509 97 876
Message opened 7003 7403 27 232 28 726 70 364
Open rate 52.46% 64.39% 74.57% 78.68%
Click for the event 226 239 994 1227 2686
CTR (click/sent) 1.69% 2.08% 2.58% 3.36%
CTR (click/open) 3.23% 3.23% 3.47% 4.27%
CTR, click through rate