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. 2021 Jun 3;96(8):2095–2101. doi: 10.1016/j.mayocp.2021.05.025

Table 3.

Phase 3 COVID-19 Vaccine Trial Document Statistics

Total pages Total paragraphs Total words Words/page Words/paragraph Font style Font size Word length (characters) Sentence Length (Words)
Adult Consent Forms
 A 24 608 9789 407.9 16.1 Times new roman (TNR) 11 4.7 16.9
 B 27 348 9575 354.6 27.5 TNR 12 4.8 19.6
 C 22 502 10,168 462.2 20.3 TNR 10 4.8 19
 D 36 421 9736 270.4 23.1 Arial 12 4.8 20.4
 E 30 103 10,337 344.6 100.4 Arial 12 4.7 17.5
 G 31 139 9957 321.2 71.6 Arial 12 4.6 18.5
Adult Informational documents
 Y 7 100 1839 262.7 18.4 TNR 10 5 19.2
 Z 29 230 7557 260.6 32.9 Calibri 12 4.7 21.7
 Mean 24.63 306.38 8619.75 350.18 38.78 TNR 11.38 4.76 19.1
Adolescent assent form
 F 8 107 2345 293.1 21.9 Arial 12 4.3 17.7
 Recommended levels <15 None None None None Arial/Calibri 14 None 15