TABLE 1.
Characteristics of ResPECT Participants
| Characteristic | VRI Season | Mandatory Influenza Vaccine Sites (n = 3) | NonMandatory Influenza Vaccine Sites (n = 4) |
|---|---|---|---|
| Numbera | 2012–2013 | 689 | 384 |
| 2013–2014 | 775 | 600 | |
| 2014–2015 | 840 | 775 | |
| Total | 2,304 | 1,759 | |
| Sex ratio, male:femaleb | 2012–2013 | 90:599 | 78:306 |
| 2013–2014 | 80:695 | 110:490 | |
| 2014–2015 | 83:57 | 150:625 | |
| Age, range y (mean)c | 2012–2013 | 21–71 (35.1) | 23–74 (46.1) |
| 2013–2014 | 21–67 (39.8) | 24–73 (47.2) | |
| 2014–2015 | 18–67 (39.8) | 24–71 (48.1) | |
| Occupation risk | 2012–2013 | L: 195 (28); M: 65 (10); H: 430 (62) | L: 65 (17); M: 34 (9); H: 285 (74) |
| level, no. (%)d | 2013–2014 | L: 224 (29); M: 124 (16); H: 427 (55) | L: 175 (29); M: 64 (11); H: 361 (60) |
| 2014–2015 | L: 216 (26); M: 163 (19); H: 459 (55) | L: 251 (32); M: 68 (9); H: 456 (59) | |
| Family members <5 y old in household, no. (%)e | 2012–2013 | No: 475 (69) | No: 315 (82) |
| Yes: 214 (31) | Yes: 68 (17) No report: 1 |
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| 2013–2014 | No: 564 (73) | No: 451 (75) | |
| Yes: 211 (27) | Yes: 102 (17) No report: 47 (8) |
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| 2014–2015 | No: 606 (72) | No: 576 (74) | |
| Yes: 233 (28) | Yes: 138 (18) | ||
| No report: 1 | No report: 61 (8) | ||
| Received flu vaccine, no. (%) | 2012–2013 | 669 (97.1) | 261 (67.9) |
| 2013–2014 | 747 (96.3) | 380 (63.3) | |
| 2014–2015 | 774 (92.1) | 468 (60.4) |
NOTE. VRI, viral respiratory illness; Logistic regression was used to compare demographics between the mandatory vaccination policy and nonmandatory vaccination sites with year included as a covariate.
Individuals (n = 7) who chose not to report their vaccination status were excluded from the analysis.
More men participated in the study at the nonmandatory sites (OR, 2.04; 95% CI, 0.53–0.91; P < .001).
The participants at nonmandatory sites were older (OR, 1.06; 95% CI, 0.05–0.06; P < .001).
L, low exposure risk occupation (eg, clerical and administrative personnel); M, medium exposure risk occupation (eg, psychologist, social worker, occupational therapist, triage personnel); H, high exposure risk occupation (eg, physician, dentist, nurse practitioner, nurse, physician assistant, emergency medicine personnel, respiratory or physical therapist); U, unknown occupation. Per protocol cohort.
There was no significant difference between the populations with respect to whether or not the participants had household members under 5 years old (OR, 0.88; 95% CI, −0.29 to 0.04; P = .14).