Table 1.
Distribution of laboratory‐confirmed and laboratory‐excluded COVID‐19 cases according to baseline demographical and clinical characteristics in the study cohort (N = 34 936)
| Characteristic |
Study population (N = 34 936) n (%) |
PCR positive (N = 205) n (%) |
PCR negative (N = 650) n (%) |
P value |
|---|---|---|---|---|
| Age | <.001 | |||
| 50‐54 y | 2993 (8.6) | 9 (4.4) | 28 (4.3) | |
| 55‐59 y | 4044 (11.6) | 8 (3.9) | 42 (6.5) | |
| 60‐64 y | 4697 (13.4) | 6 (2.9) | 55 (8.5) | |
| 65‐69 y | 4994 (14.3) | 9 (4.4) | 47 (7.2) | |
| 70‐74 y | 5483 (15.7) | 12 (5.9) | 56 (8.6) | |
| 75‐79 y | 4732 (13.5) | 33 (16.1) | 98 (15.1) | |
| 80‐84 y | 3406 (9.7) | 27 (13.2) | 105 (16.2) | |
| 85‐89 y | 2872 (8.2) | 44 (21.5) | 104 (16.0) | |
| ≥90 y | 1715 (4.9) | 57 (27.8) | 115 (17.7) | |
| Sex | .618 | |||
| Men | 16805 (48.1) | 83 (40.5) | 276 (42.5) | |
| Women | 18131 (51.9) | 122 (59.5) | 374 (57.5) | |
| Community‐dwelling | 33991 (97.3) | 102 (49.8) | 421 (64.8) | <.001 |
| Nursing home residence | 945 (2.7) | 103 (50.2) | 229 (35.2) | |
| Nº comorbidities | .276 | |||
| 0 | 7235 (20.7) | 31 (15.1) | 94 (14.5) | |
| 1 | 10705 (30.6) | 49 (23.9) | 125 (19.2) | |
| 2 | 8780 (25.1) | 53 (25.9) | 177 (27.2) | |
| 3 | 4852 (13.9) | 32 (15.6) | 116 (17.8) | |
| 4 or more | 3364 (9.6) | 40 (19.5) | 138 (21.2) |
P values were calculated by using Pearson’s Chi square test for categorical variables (sex and residence) or Chi square trend for ordinal variables (age and number of comorbidities).