All patients | PCR positive | PCR negative | |
Subjects n | 81 | 52 | 29 |
Baseline demographics | |||
Age years | 56.5±15.1 | 53.6±14.5 | 61.7±14.9 |
Male | 48/81 (59) | 29/52 (55) | 19/29 (65) |
Caucasian | 42/81 (51) | 19/52(36) | 23/29 (79) |
Current smoker | 7/81 (8.6) | 4/52 (7) | 3/29 (10) |
Height m | 1.68±0.08 | 1.66±0.08 | 1.72±0.07 |
Weight kg | 88.6±25.8 | 87.7±24.9 | 90.2±27.7 |
BMI kg·m−2 | 31.0±8.1 | 31.6±7.7 | 30.1±8.7 |
Comorbidities | |||
Diabetes | 21/81 (25.9) | 14/52 (27) | 7/29 (24) |
Chronic pulmonary disease | 13/81 (16.0) | 5/52 (9) | 8/29 (27) |
Cardiac disease | 6/81 (7.4) | 5/52 (9) | 1/29 (3) |
Admission observations | |||
Temperature >37.8°C | 25/81 (30.8) | 15/52(28) | 10/29 (34) |
Respiratory rate >25 min−1 | 13/81 (16.0) | 9/52 (17) | 4/29 (13) |
Requiring supportive oxygen | 38/81 (46.9) | 30/52 (57) | 8/29 (27) |
Blood biomarkers | |||
Lymphocyte count ×109 per L | 0.98 (0.7–1.3) | 1.0 (0.7–1.3) | 0.8 (0.7–1.2) |
Eosinophil count ×109 per L | 0.02 (0.01–0.08) | 0.02 (0.01–0.06) | 0.06 (0.02–0.1) |
C-reactive protein mg·dL−1 | 71.0 (41.5–152.5) | 68.5 (47–119) | 77.0 (32–228) |
Imaging | |||
Presence of bilateral consolidation | 67/81 (82) | 47/52 (90) | 20/29 (69) |
Length of hospital stay days | 5.9±5.4 | 6.5±6.3 | 5.0±3.7 |
30-day mortality n (%) | 9 (11) | 7 (8) | 2 (2.4) |
Data are presented as mean±sd, n/N (%) or median (interquartile range), unless otherwise stated. BMI: body mass index.