Table 1.
Characteristics of patients.
| Measures | Total N = 5,515 |
Vaccine Received |
Vaccination Status |
||||
|---|---|---|---|---|---|---|---|
| Recombinant n = 510 |
Standard dose n = 557 |
P-value Recombinant vs. SD |
Vaccinated* n = 1,067 |
Unvaccinated n = 4,448 |
p-value Vaccinated vs. Unvaccinated | ||
| Age, Mean (SD) | 38.5 (13.4) | 41.5 (13.4) | 41.2 (13.9) | 0.736 | 37.8 (13.2) | 37.8 (13.2) | <0.001 |
| White race, ref. = nonwhite, n (%) | 4,045 (73.3) | 374 (73.3) | 459 (82.4) | <0.001 | 833 (78.1) | 3,212 (72.2) | <0.001 |
| Female sex, ref. = male, n (%) | 3,471 (62.9) | 373 (73.1) | 381 (68.4) | 0.089 | 754 (70.7) | 2,717 (61.1) | <0.001 |
| Season, n (%) | 0.798 | <0.001 | |||||
| 2018–2019 | 1,189 (21.6) | 142 (27.8) | 159 (28.5) | 301 (28.2) | 888 (20.0) | ||
| 2019–2020 | 4,326 (78.4) | 368 (72.2) | 398 (71.5) | 766 (71.8) | 3,560 (80.0) | ||
| Age Group, n (%) | 0.743 | <0.001 | |||||
| 18–49 years | 4,086 (74.1) | 333 (65.3) | 369 (66.2) | 702 (65.8) | 3,384 (76.1) | ||
| 50–64 years | 1,429 (25.9) | 177 (34.7) | 188 (33.8) | 365 (34.2) | 1,064 (23.9) | ||
| Influenza case, ref. = non-case, n (%) | 1,853 (33.6) | 124 (24.3) | 142 (25.5) | 0.656 | 621 (58.2) | 1,623 (36.5) | <0.001 |
| High-risk condition,† ref. = no, n (%) | 2,244 (40.7) | 356 (69.8) | 265 (47.6) | <0.001 | 621 (58.2) | 1,623 (36.5) | <0.001 |
*Vaccinated=Flublok and standard dose vaccines (Afluria, Fluarix, FluLaval, SD Fluzone and FlucelVax).
†High-risk conditions include chronic cardiovascular, respiratory disease, among others. See Appendix 1.