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. 2023 Apr 19;14:1139915. doi: 10.3389/fimmu.2023.1139915

Table 4.

Breakthrough and vaccinated control participant demographic comparison.

Total (n=60) Breakthrough (n=30) Control (n=30) p-value
Age (years), mean ± SD 41 ± 12 41 ± 12 41 ± 12 0.96
Gender, n (%) 1.00
 Female 44 (73%) 22 (73%) 22 (73%)
 Male 16 (27%) 8 (28%) 8 (27%)
Race, n (%) 0.28
 Asian 18 (30%) 7 (23%) 11 (37%)
 Black/African American 3 (5%) 2 (7%) 1 (3%)
 White/Caucasian 35 (58%) 19 (63%) 16 (53%)
 Other 4 (7%) 2 (7%) 2 (7%)
Ethnicity, n (%) 0.19
 Hispanic/Latino 24 (40%) 15 (50%) 9 (30%)
 Non-Hispanic/Latino 36 (60%) 15 (50%) 21 (70%)
BMI, mean ± SD 29 ± 7 30 ± 7 28 ± 8 0.33
Exposure, n (%) 0.65
 Medical Center/Healthcare Worker 25 (42%) 14 (47%) 11 (37%)
 Medical Center/Non-Healthcare Worker 15 (25%) 6 (20%) 9 (30%)
 Community Member/Research Staff 20 (33%) 10 (33%) 10 (33%)

T-test was used to compare continuous variables such as age and BMI. Fisher’s Exact test was used for comparing categorical variables such as gender, race, and ethnicity. Data are represented as the number of participants (n) and the percentage of participants in the cohort or group (%), unless otherwise stated.