Skip to main content
. 2023 Feb 13;3:1093780. doi: 10.3389/fepid.2023.1093780

Table 1.

Peri-pandemic timing of survey waves and demographic characteristics of respondents. .

Survey wave 3-month Coro-Q1 8-month Coro-Q2 14-month Coro-Q3 20-month Coro-Q4
Response date (median [month/year]) 06/2020 11/2020 05/2021 11/2021
Number of surveys sent Total (n) 932 909 899 880
Paper (n, %) 932 (100.0) 909 (100.0) 540 (60.1) 519 (59.0)
Online (n, %) 0 (0.0) 0 (0.0) 359 (39.9) 361 (41.0)
Number of respondents Total (n, %) 774 (83.0) 780 (85.8) 796 (88.5) 754 (85.7)
Paper (n, %) 774 (83.0) 780 (85.8) 445 (82.4) 407 (78.4)
Online (n, %) 351 (97.8) 347 (96.1)
Age (yrs) M 72.3 72.5 73.0 73.4
SD 6.3 6.3 6.2 6.3
Range 58–91 59–91 59–92 60–92
Females n (%) 367 (47.4) 377 (48.3) 380 (47.7) 360 (47.7)
Education (yrs) Median 14.5 14.5 14.5 14.6
IQR 12–16 12–16 12–16 13–16
Range 9–21 9–21 9–21 9–22

IQR, interquartile range; M, Mean; SD, standard deviation; yrs, years.