Table 2.
Percentage (95% confidence intervals) of student participants isolating within the prior week, with symptoms within the prior week, or suspected of having/testing positive for COVID-19 (all weighted), overall and stratified by study year.
| Study year | Overall | ||||
|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 + | ||
| Isolating in the prior 7 days, N = 179 | 24% (20–29%) | 13% (9–18%) | 11% (6–15%) | 9% (6–11%) | 14% (12–16%) |
| Symptoms in the prior 7 days, N = 437 | 44% (38–49%) | 36% (30–42%) | 30% (24–37%) | 29% (25–33%) | 35% (32–37%) |
| Cardinal symptoms in the prior 7 days, N = 93 | 15% (11–19%) | 6% (3–9%) | 3% (1–6%) | 4% (2–6%) | 7% (6–9%) |
| Seeking medical attention for reported symptoms, N = 30 | 3% (1–5%) | 3% (1–5%) | 1% (0–2%) | 2% (1–3%) | 2% (2–3%) |
| Suspected of having COVID-19 more than 2 weeks before survey*, N = 152 | 9% (6–12%) | 16% (11–20%) | 9% (5–14%) | 13% (10–16%) | 12% (10–14%) |
| Suspected of having COVID-19 last 2 weeks before survey*, N = 56 | 5% (3–7%) | 8% (4–11%) | 6% (3–10%) | 2% (0–3%) | 4% (3–6%) |
| Tested COVID positive more than 2 weeks before survey, N = 20 | 3% (1–5%) | 2% (0–4%) | 0% (0–1%) | 1% (0–1%) | 2% (1–2%) |
| Tested COVID positive last 2 weeks before survey, N = 42 | 10% (7–13%) | 2% (0–4%) | 0% (0–0%) | 1% (0–1%) | 3% (2–4%) |
*Medical professional’s opinion or personal suspicion.