Table 1.
Characteristics of patients with confirmed coronavirus disease 2019 (covid-19) admitted to hospital by 9 April 2020. Values are numbers (percentages) unless stated otherwise
| Characteristics | Kaiser Permanente region | All regions (n=9 596 321)* | ||
|---|---|---|---|---|
| Northern California (n=4 348 020)* | Southern California (n=4 548 811)* | Washington (n=699 490)* | ||
| No admitted to hospital | 534 | 711 | 83 | 1328 |
| Median (range); interquartile range | 61 (19-103); 49-73 | 60 (18-100); 47-71 | 62 (27-91); 52-72 | 61 (18-103); 48-72 |
| Age group (years): | ||||
| 0-9 | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| 10-19 | 1 (0.2) | 3 (0.4) | 0 (0) | 4 (0.3) |
| 20-29 | 21 (3.9) | 26 (3.7) | 1 (1.2) | 48 (3.6) |
| 30-39 | 38 (7.1) | 77 (10.8) | 5 (6.0) | 120 (9.0) |
| 40-49 | 80 (15.0) | 100 (14.1) | 13 (15.7) | 193 (14.5) |
| 50-59 | 109 (20.5) | 144 (20.3) | 16 (19.3) | 269 (20.3) |
| 60-69 | 118 (22.1) | 163 (22.9) | 21 (25.3) | 302 (22.8) |
| 70-79 | 91 (17.1) | 119 (16.7) | 19 (22.9) | 229 (17.3) |
| ≥80 | 75 (14.1) | 79 (11.1) | 8 (9.6) | 162 (12.2) |
| Male sex | 301 (56.5) | 396 (55.7) | 44 (53.0) | 741 (55.8) |
| Events before 23 April 2020: | ||||
| Laboratory confirmed covid-19 | 502 (94.0) | 686 (96.5) | 83 (100) | 1271 (95.7) |
| Hospital admission complete | 480 (89.9) | 621 (87.3) | 75 (90.4) | 1176 (88.6) |
| Discharge alive† | 393/472 (83.3) | 434/548 (79.2) | 66/75 (88.0) | 893/1095 (81.6) |
| Death† | 79/472 (16.7) | 114/548 (20.8) | 9/75 (12.0) | 202/1095 (18.4) |
| Intensive care unit admission‡ | ||||
| Among cases with completed hospital admissions | 134/480 (27.9) | 199/621 (32.0) | – | – |
| Among survivors | 81/393 (20.6) | 115/434 (26.5) | – | – |
| Among non-survivors | 53/79 (67.1) | 84/114 (73.7) | – | – |
*
Cohort size.
†
Denominators are limited to those with completed hospital admissions. Outcomes were not recorded at time of writing for 81 people with completed hospital admissions.
‡
Admission data were not available for Washington state.