Table II.
Demographic characteristics compared between patients who were Coronavirus disease 2019 (COVID-19)-positive during Delta variant wave (DW) time and the rest of the cohort (non-Delta wave [NDW])
| NDW (n = 206) | DW (n = 50) | P-value | |
|---|---|---|---|
| Age, years | 66 (±10) | 59 (±10) | <.001 |
| Sex | .78 | ||
| Female | 82 (40) | 21 (42) | |
| Male | 124 (60) | 29 (58) | |
| Ethnicity | .25 | ||
| Caucasian | 3 (1) | 0 (0) | |
| Hispanic | 116 (56) | 23 (46) | |
| African American | 87 (42) | 27 (54) | |
| BMI, kg/m2 | 30 (±5) | 26 (±4) | .021 |
| Vaccination status | .002 | ||
| None | 195 (95) | 45 (90) | |
| One dose | 0 (0) | 3 (6) | |
| Two doses | 11 (5) | 2 (4) | |
| Smoking | .83 | ||
| Never | 152 (73) | 40 (80) | |
| Former | 17 (10) | 3 (7) | |
| Current | 8 (5) | 2 (4) | |
| Comorbidities | |||
| Hypertension | 143 (69) | 29 (58) | .12 |
| Diabetes mellitus | 111 (54) | 21 (42) | .13 |
| COPD | 18 (9) | 3 (6) | .53 |
| Asthma | 19 (9) | 2 (4) | .23 |
| CAD/CHF | 45 (22) | 9 (18) | .55 |
| Atrial fibrillation | 17 (8) | 0 (0) | .036 |
| TIA/stroke | 6 (3) | 4 (8) | .096 |
| Peripheral arterial disease | 5 (2) | 2 (4) | .54 |
| CKD | 58 (28) | 12 (24) | .55 |
| Active malignancy | 19 (9) | 2 (4) | .23 |
| Immunosuppression | 24 (12) | 7 (14) | .65 |
| Thrombophilia | 3 (1) | 1 (2) | .78 |
| Previous DVT/PE | 16 (8) | 8 (16) | .073 |
| Start of COVID symptoms, daysa | 3 (1-7) | 4 (1-7) | .39 |
BMI, Body mass index; CAD, coronary arterial disease; CHF, chronic heart failure; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; DVT, deep venous thrombosis; PE, pulmonary embolism; TIA, transient ischemic attack.
Data are presented as number (%), mean (standard deviation), or median (interquartile range).
a
Start of COVID symptoms in number of days prior to admission.