Table 1:
Characteristics of healthcare workers enrolled during the 2017-18 and 2018-19 influenza vaccine seasons at the Johns Hopkins Hospital.
| 2017-2018 | 2018-2019 | |||||
|---|---|---|---|---|---|---|
| Male | Female | Total | Male | Female | Total | |
| N (%) | 38 (34.2) | 73 (65.8) | 111 | 44 (27.0) | 119 (73.0) | 163 |
| Age - med (IQR) | 34 (28 - 44) | 38 (30 - 52) | 30 (27 - 37) | 36 (30 - 47) | ||
| Age Categories - n (%) | ||||||
| 19-49 | 33 (86.8) | 51 (69.9) | 84 (75.7) | 38 (86.4) | 98 (82.4) | 136 (83.4) |
| 50-68 | 5 (13.2) | 22 (30.1) | 27 (24.3) | 6 (13.6) | 21 (17.6) | 27 (16.6) |
| Race - n (%) | ||||||
| American Indian or Alaskan Native | 0 (0.0) | 0 (0.0) | 0(0.0) | 1 (2.3) | 0 (0.0) | 1 (.6) |
| Asian | 7 (18.4) | 7 (9.6) | 0(0.0) | 5 (11.4) | 8 (6.7) | 13 (8.0) |
| Black or African American | 6 (15.8) | 13 (17.8) | 14 (12.6) | 8 (18.2) | 28 (23.5) | 36 (22.1) |
| White | 21 (55.3) | 48 (65.8) | 19 (17.1) | 28 (63.6) | 76 (63.9) | 104 (63.8) |
| Other | 3 (7.9) | 5 (6.8) | 69 (62.2) | 2 (4.5) | 7 (5.9) | 9 (5.5) |
| Unkown | 1 (2.6) | 0 (0.0) | 8 (7.2) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| BMI Categories - n (%) | ||||||
| Normal | 9 (23.7) | 31 (42.5) | 40 (36.0) | 18 (40.9) | 55 (46.2) | 73 (44.8) |
| Over weight or obese | 29 (76.3) | 42 (57.5) | 71 (64.0) | 25 (56.8) | 62 (52.1) | 87 (53.4) |
| Missing | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (2.3) | 2 (1.7) | 3 (1.8) |
| Vaccination history categories - n (%) | ||||||
| <5 previous vaccines | 14 (36.8) | 16 (21.9) | 30 (27.0) | 12 (27.3) | 20 (16.8) | 32 (19.6) |
| 5 previous vaccines | 24 (63.2) | 57 (78.1) | 81 (73.0) | 27 (61.4) | 94 (79.0) | 121 (74.2) |
| Unkown | 0 (0.0) | 0 (0.0) | 0 (0.0) | 4 (9.1) | 2 (1.7) | 6 (3.7) |
| Missing | (.) | (.) | (.) | 1 (2.3) | 3 (2.5) | 4 (2.5) |
| Ever smoked - n (%) | ||||||
| No | (.) | (.) | (.) | 42 (95.5) | 104 (87.4) | 146 (89.6) |
| Yes | (.) | (.) | (.) | 2 (4.5) | 14 (11.8) | 16 (9.8) |
| Missing | (.) | (.) | (.) | 0 (0.0) | 1 (.8) | 1 (.6) |
| Underlying conditions | ||||||
| No | 26 (68.4) | 31 (42.5) | 57 (51.4) | 25 (56.8) | 64 (53.8) | 89 (54.6) |
| Yes | 12 (31.6) | 42 (57.5) | 54 (48.6) | 19 (43.2) | 55 (46.2) | 74 (45.4) |
| Patient contact | ||||||
| No | 32 (84.2) | 44 (60.3) | 76 (68.5) | 23 (52.3) | 46 (38.7) | 69 (42.3) |
| Yes | 5 (13.2) | 29 (39.7) | 34 (30.6) | 21 (47.7) | 68 (57.1) | 89 (54.6) |
| Missing | 1 (2.6) | 0 (0.0) | 1 (.9) | 0 (0.0) | 5 (4.2) | 5 (3.1) |
(.)=smoking data not collected in the 2017-18 study season