Table 3.
Factors influencing symptoms persisting more than 3 months (PCS).
| No Symptoms | PCS | OR (95% CI) | p-Value | aOR (95% CI) | p-Value | ||
|---|---|---|---|---|---|---|---|
| n/% | n/% | ||||||
| Age | <35 | 132/25.2 | 229/16.3 | Reference | Reference | ||
| 35–49 | 157/30.0 | 362/25.7 | 1.1 (0.8–1.6) | 0.5 | 1.2 (0.9–1.6) | 0.3 | |
| >49 years | 235/44.8 | 815/58.0 | 1.5 (1.1–2.0) | 0.01 | 1.5 (1.1–2.1) | 0.004 | |
| Sex | Female | 385/73.5 | 1194/84.9 | 1.7 (1.3–2.3) | <0.001 | 1.6 (1.2–2.2) | <0.001 |
| Male | 139/26.5 | 212/15.1 | Reference | Reference | |||
| Obesity a | BMI ≥ 30 | 96/18.6 | 364/26.3 | 1.1 (0.8–1.4) | 0.7 | ||
| Pre-existing disease b | 258/49.2 | 949/67.5 | 1.6 (1.3–2.1) | <0.001 | 1.7 (1.3–2.1) | <0.001 | |
| Acute symptoms of COVID-19 b | 447/85.3 | 1379/98.1 | 1.5 (0.9–2.6) | 0.2 | |||
| No. of acute symptoms | Mean ± SD | 4.9 ± 3.4 | 7.9 ± 3.2 | 1.2 (1.1–1.3) | <0.001 | 1.2 (1.2–1.3) | <0.001 |
| Severe acute symptoms b | 273/52.1 | 1160/82.6 | 1.6 (1.2–2.1) | 0.002 | 1.6 (1.2–2.2) | 0.001 | |
| Hospitalisation c | 14/2.7 | 119/8.5 | 1.2 (0.7–3.0) | 0.6 | |||
| ICU treatment d | 2/0.4 | 33/2.3 | 2.4 (0.5–12.4) | 0.3 | |||
| Outpatient medical care e | 56/10.7 | 531/37.8 | 3.2 (2.3–4.4) | <0.001 | 3.2 (2.3–4.4) | <0.001 |
OR—odds ratio; aOR—adjusted odds ratio; CI—confidence interval; PCS—post-COVID-19 syndrome. a no obesity as reference group; b not present as reference group; c no hospitalisation as reference group; d no ICU treatment as reference group; e no outpatient medical care as reference group.