Table 1 Characteristics of patients with COVID-19 referred to triage centres

13,893

13,398

495

Age (mean (SD))

48.2 (15.9)

47.6 (15.6)

64.9 (14.6)

Age (categories (%))

18–30

2050 (14.8)

2042 (15.2)

8 (1.6)

31–40

2961 (21.3)

2931 (21.9)

30 (6.1)

41–50

2746 (19.8)

2698 (20.1)

48 (9.7)

51–60

2,750 (19.8)

2668 (19.9)

82 (16.6)

60+

3386 (24.4)

3059 (22.8)

327 (66.1)

Sex (%)

Female

8585 (61.8)

8,270 (61.7)

315 (63.6)

Male

5308 (38.2)

5128 (38.3)

180 (36.4)

Triage centre (%)

1

5655 (40.7)

5423 (40.5)

232 (46.9)

2

8238 (59.3)

7975 (59.5)

263 (53.1)

Vaccine doses (%)

None

11,929 (85.9)

11,464 (85.6)

465 (93.9)

1 dose

586 (4.2)

573 (4.3)

13 (2.6)

2 doses

1,378 (9.9)

1361 (10.2)

17 (3.4)

Vaccination status (%)

Non-vaccinated

12,154 (87.5)

11,687 (87.2)

467 (94.3)

Partial

448 (3.2)

437 (3.3)

11 (2.2)

Complete

1291 (9.3)

1274 (9.5)

17 (3.4)

Oxygen saturation (%)

96% and more

13,508 (97.2)

13,348 (99.6)

160 (32.3)

94–95%

152 (1.1)

9 (0.1)

143 (28.9)

92–93%

140 (1.0)

1 (0.0)

139 (28.1)

Less than 92%

53 (0.4)

2 (0.0)

51 (10.3)

Missing data

40 (0.3)

38 (0.3)

2 (0.4)

Lung injury (%)

No injury

4525 (32.6)

4525 (33.8)

0 (0.0)

Less than 25%

7638 (55.0)

7638 (57.0)

0 (0.0)

25–50%

1415 (10.2)

1232 (9.2)

183 (37.0)

50–75%

284 (2.0)

3 (0.0)

281 (56.8)

More than 75%

31 (0.2)

0 (0.0)

31 (6.3)