Table 3.
Likelihood of Self-reporting Unvaccinated-no Intention and Self-reporting Unvaccinated-vaccination Intention Compared to Self-reporting Vaccinated-vaccination Intention, in Multivariate Logistic Regression, Adjusting for PCR-confirmed Influenza, Demographics and Symptoms
| Children < 18 years | Adults ≥ 18 years | |||||
|---|---|---|---|---|---|---|
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| Vaccination status in 2013–2014 and vaccination intent in 2014–2015 | Vaccination status in 2013–2014 and vaccination intent in 2014–2015 | |||||
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| Unvaccinated-no intention | Unvaccinated-vaccination intention | Unvaccinated-no intention | Unvaccinated-vaccination intention | |||
| Model details: | OR (95% CI) | OR (95% CI) | p value | OR (95% CI) | OR (95% CI) | p value |
| Unadjusted Model | ||||||
|
| ||||||
| PCR-confirmed influenza, ref. = influenza negative | 1.11 (0.57–2.17) | 2.08 (1.29–3.35) | 0.009 | 1.05 (0.83–1.32) | 1.67 (1.34–2.09) | < 0.001 |
|
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| Adjusted Model | ||||||
|
| ||||||
| PCR-confirmed influenza, ref. = influenza negative | 0.97 (0.48–1.98) | 1.70 (1.02–2.82) | 0.10 | 0.87 (0.62–1.20) | 1.41 (1.03–1.93) | 0.02 |
| Male sex, ref. = female | 1.78 (1.03–3.06) | 0.77 (0.49–1.20) | 0.03 | 1.41 (1.08–1.84) | 1.31 (0.99–1.74) | 0.02 |
| Age group 18–49 yrs., ref. = ≥ 50 yrs. | – | – | 1.25 (0.95–1.66) | 1.27 (0.94–1.71) | 0.15 | |
| Has health insurance, ref. = no health insurance | – | – | 0.99 (0.56–1.77) | 0.78 (0.41–1.48) | 0.72 | |
| Subjective social status | – | – | ||||
| Low (1–4), ref. = high (7–9) | – | – | 1.60 (0.86–2.98) | 1.33 (0.68–2.59) | 0.19 | |
| Medium (5), ref. = high (7–9) | – | – | 1.36 (0.88–2.10) | 0.97 (0.60–1.59) | ||
| Moderate (6), ref. = high (7–9) | – | – | 0.73 (0.46–1.15) | 1.08 (0.68–1.72) | ||
| Smoker, ref. = nonsmoker | – | – | 1.72 (1.17–2.54) | 1.23 (0.78–1.95) | 0.02 | |
| Self-reported health status | – | – | 0.72 | |||
| Fair/Poor vs. Excellent | – | – | 0.53(0.15–1.85) | 0.88(0.27–2.84) | ||
| Good vs. Excellent | – | – | 0.88(0.50–1.57) | 0.88(0.49–1.58) | ||
| Very Good vs. Excellent | – | – | 1.28(0.75–2.20) | 1.02(0.60–1.75) | ||
| Has a high risk condition, ref. =no high risk condition | – | – | 0.50 (0.35–0.73) | 0.53 (0.36–0.80) | < 0.001 | |
| Reported fatigue at enrollment, ref. = no fatigue | 1.93 (1.03–3.61) | 1.63 (0.89–2.98) | 0.04 | – | – | |
| Reported fever at enrollment, ref. = no fever | – | – | 0.97 (0.74–1.29) | 1.31 (0.97–1.78) | 0.15 | |
| Illness rating at enrollment, range = 0 (worst) to 100 (best) | – | – | 1.00 (0.98–1.02) | 1.00 (0.98–1.01) | ||
| No ability to perform usual activity, ref. = able to perform usual activity | 1.11 (0.56–2.19) | 1.79 (0.87–3.67) | 0.38 | 0.94 (0.60–1.48) | 0.99 (0.60–1.64) | 0.98 |
| Moderate ability to perform usual activity, ref. = able to perform usual activity | 0.64 (0.32–1.29) | 1.19 (0.59–2.40) | 0.92 (0.62–1.35) | 0.99 (0.63–1.54) | 0.84 | |
| Work hours missed due to illness | – | – | 0.99 (0.97–1.02) | 1.01 (0.99–1.03) | 0.46 | |
Reference group is Vaccinated-vaccination intention (vaccinated this season and intends to be vaccinated next season)