Table 1. Clinical Characteristics of the Patients at Baseline.*.
| Characteristic | Patients(N=24) |
|---|---|
| Enrollment site — no. (%) | |
| University of Washington (UW Medical Center–Montlake, Harborview, Northwest, and Valley) | 15 (63) |
| Swedish Medical Center (First Hill, Cherry Hill, Issaquah, and Edmonds) | 8 (33) |
| Virginia Mason Hospital | 1 (4) |
| Admission location — no. (%) | |
| Home | 16 (67) |
| Skilled nursing facility | 6 (25) |
| Hospital transfer | 2 (8) |
| Mean age (range) — yr | 64±18 (23–97) |
| Sex — no. (%) | |
| Male | 15 (63) |
| Female | 9 (38) |
| Body-mass index† | 33.2±7.2 |
| Coexisting disorder — no. (%) | |
| Asthma | 3 (14) |
| Cancer‡ | 0 |
| Chronic dialysis | 0 |
| Chronic kidney disease | 5 (21) |
| Chronic obstructive pulmonary disease | 1 (4) |
| Current or former tobacco smoker§ | 5 (22) |
| Diabetes mellitus | 14 (58) |
| Hemorrhagic or ischemic stroke | 2 (8) |
| Human immunodeficiency virus | 1 (4) |
| Obstructive sleep apnea | 5 (21) |
| Mean duration of symptoms before admission — days | 7±4 |
| Respiratory symptoms — no. (%) | |
| Cough | 21 (88) |
| Shortness of breath | 21 (88) |
| Sore throat | 2 (8) |
| Sputum production | 10 (42) |
| Systemic symptoms — no. (%) | |
| Headache | 2 (8) |
| Rhinorrhea | 4 (17) |
| History of travel and contacts — no. (%) | |
| Travel to country where Covid-19 is endemic within previous 3 mo¶ | 0 |
| Known sick contact | 13 (54) |
| Vital signs on ICU admission — no./total no. (%) | |
| Temperature >100.4°F or 38°C | 12/24 (50) |
| Heart rate >100 beats per min‖ | 11/23 (48) |
| Respiratory rate ≥20 breaths per min‖ | 19/23 (83) |
| Imaging — no. (%) | |
| Chest radiography | 23 (96) |
| Chest computed tomography | 5 (21) |
*
Plus-minus values are means ±SD. Percentages may not total 100 because of rounding. ICU denotes intensive care unit.
†
The body-mass index in the weight in kilograms divided by the square of the height in meters. Data on body-mass index were missing for one patient.
‡
Cancer included known lymphoma, leukemia and metastatic cancer.
§
Data on current or former smoking were missing for one patient.
¶
Countries with endemic Covid-19 disease included China, Iran, Italy, and South Korea.
‖
One patient did not have a heart rate or respiratory rate recorded in the medical chart at admission.