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. 2024 Jul 9;7:e51520. doi: 10.2196/51520

Table 3.

Visibility metrics over time for Facebook and Twitter. Values reflect mean (SD) and ranges.

Yeara Facebook Twitter

Average annual reach rate Average annual engagement rate Average annual impression rate

Mean (SD), % Range Mean (SD), % Range Mean (SD), % Range
All years (except year 1) 80.1 (79.1) 8.0-355.3 7.6 (5.8) 1.2-29.2 1260.3 (1076) 559.4-4152.9
Year 2 50.2 (30) 26.7-113.9 8.2 (4.7) 4.1-16.5 1564.9 (1319.6) 559.4-4152.9
Year 3 52.5 (37.7) 13.5-128.9 5.4 (2.7) 2.1-11.2 803.4 (195.6) 573.5-1141.6
Year 4 138.4 (111.4) 11.6-355.3 10 (8.3) 1.4-29.2 b
Year 5 62.8 (61) 8.0-122.5 5.7 (5.3) 1.2-12.0

aMetrics exclude each platform’s first year of data because these metrics appear inflated due to high engagement from a limited number of followers, as the pages were being established and accruing followers. For Facebook (launched in January 2019), year 2: January 2020-December 2020; year 3: January 2021-December 2021; year 4: January 2022-December 2022; year 5 (partial, n=4 months): January 2023-April 2023. For Twitter (launched in July 2020), year 2: August 2021-July 2021; year 3 (partial, n=8 months): August 2022-March 2023.

bNot available.