Table 3. QuickView test performance, as compared to RT-PCR (“gold standard”).
Lower limit of 95% confidence interval for each proportion is shown in parentheses.
| Sens | Spec | NPV | PPV | ||
|---|---|---|---|---|---|
| Overall | 77.0% (74.8%) | 97.2% (96.6%) | 89.7% (88.6%) | 93.0% (91.5%) | |
| Subtype | |||||
| Flu A | 73.4% (70.8%) | 98.4% (97.9%) | 93.7% (92.9%) | 91.9% (89.6%) | |
| Flu B | 80.6% (77.1%) | 98.7% (98.3%) | 97.2% (96.7%) | 90.3% (87.4%) | |
| Outbreak | |||||
| Yes | 77.4% (75.0%) | 96.4% (95.4%) | 85.8% (84.2%) | 93.8% (92.2%) | |
| No | 74.5% (97.6%) | 98.4% (97.5%) | 96.3% (95.1%) | 87.7% (81.4%) | |
| Disposition | |||||
| Inpatient | 74.5% (61.0%) | 98.7% (96.2%) | 93.2% (90.5%) | 94.2% (81.3%) | |
| Outpatient | 77.1% (74.9%) | 97.1% (96.4%) | 89.4% (88.2%) | 93.0% (91.4%) | |
| Days since onset | |||||
| 0 | 62.9% (49.7%) | 98.8% (95.7%) | 87.7% (82.1%) | 95.1% (83.5%) | |
| 1 | 78.5% (75.2%) | 97.1% (96.0%) | 88.8% (87.0%) | 93.9% (91.6%) | |
| 2 | 79.8% (76.0%) | 97.3% (96.1%) | 91.1% (89.3%) | 93.3% (90.5%) | |
| 3 | 72.0% (65.8%) | 96.5% (94.7%) | 89.3% (86.6%) | 89.6% (84.3%) | |
| 4+ | 64.3% (35.1%) | 100.0% (94.0%) | 92.3% (82.9%) | 100.0% (66.4%) | |
| Age | |||||
| 0–4 | 80.2% (75.5%) | 97.3% (96.5%) | 96.4% (95.5%) | 84.9% (80.4%) | |
| 5–14 | 78.0% (74.6%) | 96.1% (94.4%) | 83.3% (80.7%) | 94.5% (92.3%) | |
| 15–59 | 72.8% (68.5%) | 98.1% (96.4%) | 78.9% (75.3%) | 97.4% (95.2%) | |
| >60 | 86.7% (69.3%) | 100.0% (89.4%) | 89.2% (74.6%) | 100.0% (86.8%) | |
| Oseltamivir | |||||
| Yes | 65.5% (45.7%) | 95.7% (85.5%) | 81.8% (69.1%) | 90.5% (69.6%) | |
| No | 77.2% (75.0%) | 97.2% (96.6%) | 89.8% (88.7%) | 93.1% (91.5%) | |