Table 2.
Unadjusted and Adjusted Associations Between Potential Risk Factors and Persistence of COVID-19–Related Symptoms
| Characteristics | Unadjusted PR (95% CI) | Age/Sex Adjusted PR (95% CI) | Fully Adjusted PR (95% CI) |
|---|---|---|---|
| Age (y)∗ | 0.98 (0.92–1.04) | − | 1.00 (0.91–1.12) |
| Sex (female) | 1.14 (0.49–2.67) | − | 2.01 (0.48–8.61) |
| Cough | 3.23 (1.40–7.44) | 3.22 (1.38–7.49) | 1.49 (0.35–6.33) |
| Fatigue | 4.62 (1.97–10.8) | 4.62 (1.96–10.8) | 2.67 (1.01–10.6) |
| Dyspnea | 4.68 (1.91–11.4) | 4.61 (1.88–11.2) | 1.70 (0.87–21.1) |
| Chronic obstructive pulmonary disease | 2.64 (0.75–9.32) | 2.97 (0.82–10.7) | 5.05 (0.83–30.6) |
| Oxygen support | 2.52 (1.09–5.82) | 2.90 (1.19–7.06) | 1.21 (0.19–7.07) |
| Hydroxychloroquine | 1.87 (0.82–4.25) | 1.97 (0.85–4.56) | 1.85 (0.45–7.63) |
| Azithromycin | 1.89 (0.75–4.75) | 1.95 (0.76–5.00) | 5.09 (1.15–22.4) |
| Enoxaparin | 2.96 (1.27–6.89) | 3.03 (1.29–7.11) | 3.62 (0.68–19.2) |
| Number of symptoms | 1.30 (1.09–1.54) | 1.29 (1.08–1.55) | 1.18 (0.84–1.65) |
| Days from hospital discharge | 0.98 (0.97–0.99) | 0.98 (0.97–0.99) | 0.97 (0.95–0.99) |
∗
Prevalence ratio per year increase.