Skip to main content

Table 1 Demographic and clinical characteristics of COVID-19 patients, 8/25/2020 to 5/8/2021

From: Seasonal COVID-19 surge related hospital volumes and case fatality rates

  Overall (n = 7388) Pre-surge period (n = 536) Surge period (n = 6372) Post-surge period (n = 480) p-value
Average daily cases, mean (SD) 28.7 (37.5) 7.1 ( 3.7) 59.6 (41.6) 6.4 ( 3.1)  < 0.001
Demographic characteristics
 Age, mean (SD), years 52.76 (19.60) 50.26 (19.78) 53.29 (19.53) 48.48 (19.52)  < 0.001
 Male sex, n (%) 3529 (47.8) 260 (48.5) 3054 (47.9) 215 (44.8) 0.389
Race/ethnicity, n (%)
  Asian 624 (8.4) 31 (5.8) 564 (8.9) 29 (6.0)  < 0.001
  Hispanic/Latinx 2423 (32.8) 158 (29.5) 2136 (33.5) 129 (26.9)
  Non-Hispanic Black 1212 (16.4) 97 (18.1) 1034 (16.2) 81 (16.9)
  Non-Hispanic White 2416 (32.7) 193 (36.0) 2031 (31.9) 192 (40.0)
  Other 368 (5.0) 21 (3.9) 324 (5.1) 23 (4.8)
Clinical characteristics
 Elixhauser comorbidity scorea, mean ± SD 7.44 (11.84) 6.31 (10.24) 7.50 (11.95) 7.82 (11.98) 0.060
 Obesity, n (%) 1697 (23.0) 109 (20.3) 1498 (23.5) 90 (18.8) 0.019
 Hypertension, n (%) 3001 (40.6) 176 (32.8) 2648 (41.6) 177 (36.9)  < 0.001
 Diabetes mellitus, n (%) 1804 (24.4) 105 (19.6) 1597 (25.1) 102 (21.2) 0.004
 Prior myocardial infarction or heart failure, n (%) 1230 (16.6) 70 (13.1) 1073 (16.8) 87 (18.1) 0.052
 Prior COPD or asthma, n (%) 1326 (17.9) 78 (14.6) 1174 (18.4) 74 (15.4) 0.026
  1. COPD, chronic obstructive pulmonary disease; SD, standard deviation
  2. aElixhauser comorbidity score calculated using the van Walraven method