Table 1.
Self‐reported current season influenza vaccination status as compared to adjudicated vaccination status, 2014‐15
| Current season | ||||||||
|---|---|---|---|---|---|---|---|---|
| Self‐report | Adjudicated vaccination status | Percent Agreement | Kappa | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |
| Vaccinated | Unvaccinated | |||||||
| Age 6‐59 mo | ||||||||
| Vaccinated | 239 | 8 | 96.2% | 0.92 | 97.2% | 94.6% | 96.8% | 95.2% |
| Unvaccinated | 7 | 140 | (94.2%‐98.9%) | (89.6%‐97.6%) | (93.7%‐98.6%) | (90.4%‐98.1%) | ||
| Age 5‐17 y | ||||||||
| Vaccinated | 225 | 10 | 96.8% | 0.94 | 97.0% | 96.7% | 95.7% | 97.7% |
| Unvaccinated | 7 | 293 | (93.9%‐98.8%) | (94.0%‐98.4%) | (92.3%‐97.9%) | (95.3%‐99.1%) | ||
| Age 18‐49 y | ||||||||
| Vaccinated | 170 | 4 | 99.0% | 0.98 | 100% | 98.2% | 97.7% | 100% |
| Unvaccinated | 0 | 220 | (97.9%‐100%) | (95.5%‐99.5%) | (94.2%‐99.4%) | (98.3%‐100%) | ||
| Age 50‐64 y | ||||||||
| Vaccinated | 141 | 1 | 99.1% | 0.98 | 99.3% | 98.8% | 99.3% | 98.8% |
| Unvaccinated | 1 | 81 | (96.1%‐100%) | (93.3%‐100%) | (96.1%‐100%) | (93.4%‐100%) | ||
| Age 65 + y | ||||||||
| Vaccinated | 157 | 1 | 99.0% | 0.97 | 99.4% | 97.6% | 99.4% | 97.6% |
| Unvaccinated | 1 | 41 | (96.5‐100%) | (87.4%‐99.9%) | (96.5%‐100%) | (87.4%‐100%) | ||
| All ages | ||||||||
| Vaccinated | 932 | 24 | 97.7% | 0.95 | 98.3% | 97.0% | 97.5% | 98.0% |
| Unvaccinated | 16 | 775 | (97.3%‐99.0%) | (95.6%‐98.1%) | (96.3%‐98.4%) | (96.7%‐98.8%) | ||