Table 1. Epidemiological, clinical, and laboratory data of the cohort of asymptomatic individuals tested during the test period of the study.
| Group | Subgroup | Phase 3(n=500,914) | Subgroup for SEIR analysis(n=429) |
|---|---|---|---|
| Testing* | Positives | 70,704 | 429 |
| Negatives | 426,666 | 0 | |
| Repeats | 5,942 | 0 | |
| Other | 3,544 | 0 | |
| Specimen type | NP | 32,956 | 429 |
| SG | 37,508 | 0 | |
| Other | 71 | 0 | |
| Age (years) | 0–4 | 2,013 | 2 |
| 5–18 | 8,757 | 23 | |
| 19–39 | 31,497 | 271 | |
| 40–59 | 19,535 | 102 | |
| 60–79 | 7,518 | 29 | |
| ≥80 | 1,376 | 2 | |
| Unknown | 8 | 0 | |
| Sex | Female | 37,073 | 206 |
| Male | 32,733 | 221 | |
| Unknown | 898 | 2 | |
| Patient health authority | 1 | 31,490 | 151 |
| 2 | 9,000 | 4 | |
| 3 | 3,825 | 5 | |
| 4 | 16,394 | 245 | |
| 5 | 9,684 | 8 | |
| Unknown | 311 | 16 | |
| Vaccination status | Unvaccinated | 15,494 | 355 |
| One dose | 1,605 | 4 | |
| Fully vaccinated† | 49,361 | 64 | |
| Other | 4,244 | 6 | |
| Asymptomatic testing | 1,548 | 429 | |
| No E gene result | 18,583 | 0 | |
| VoC lineage | Alpha (B.1.1.7) | 0 | 0 |
| Beta (B.1.351) | 0 | 0 | |
| Delta (B.1.617.2) | 9,261 | 0 | |
| Gamma (P.1) | 0 | 0 | |
| Omicron (B.1.1.529) | 11,657 | 429 | |
| Unknown ‡ | 49,786 | 0 | |
E gene, envelope gene; VoC, variant of concern.
For all variables except testing, data presented as first positive result per person.
Does not include individuals who received ≥3 doses of vaccine.
Due to laboratory testing algorithms, only a selected portion of SARS-CoV-2-positive samples underwent characterization to identify the VoC lineage.