Table 1.

Differences in recruitment method reported pre‐ and post‐COVID‐19 among those who completed a telephone screening (n = 531)

Recruitment method	Pre‐COVID‐19 onset (n = 329)		Post‐COVID‐19 onset (n = 202)
	n	%	n	%
Electronic: institutional email announcements	83	25.2	153	75.7
Cafeteria outreach by study staff	92	28.0	4a	2.0
Flyer	65	19.8	4	2.0
Word of mouth from another employee	53	16.1	34	16.8
Other/Unknown	36	10.9	7	3.5

Note: All row percentages are significantly different except word of mouth.

Abbreviation: COVID‐19, coronavirus disease 2019.

^a These cases initially heard about the study before the onset of COVID‐19 but completed the telephone screening after the onset of COVID‐19.

χ ² (4, N = 531) = 157.7, p < 0.001.