Table 2.
Summary of Pertinent Patient Metadata for B.1.617.1/B.1.617.2 Patients (Excluding B.1.1.7 Patients)
| Variable | B.1.617 variants | Other variants | Total | Statistical analysis |
|---|---|---|---|---|
| Patients with data | 22 (0.2) | 9178 (99.8) | 9200 | |
| Race/ethnicity | ||||
| Asian | 7 (33.3) | 542 (5.9) | 549 (6.0) |
P < 0.001 (Fisher exact test) (Asian versus non-Asian) Odds ratio: 7.927 (95% CI, 2.973–19.40) |
| White | 8 (38.1) | 3712 (40.6) | 3720 (40.6) | |
| Hispanic or Latino | 3 (14.3) | 2717 (29.7) | 2720 (29.7) | |
| Black | 0 (0) | 1644 (18.0) | 1644 (18.0) | |
| Native American | 1 (4.8) | 27 (0.3) | 28 (0.3) | |
| Hawaiian/Pacific Islander | 1 (4.8) | 22 (0.2) | 23 (0.3) | |
| Unavailable | 1 (4.8) | 471 (5.2) | 472 (5.2) | |
| Admission data | ||||
| Admitted | 17 (77.3) | 4248 (46.3) | 4265 (46.4) |
P = 0.0045 (Fisher exact test) Odds ratio: 3.946 (95% CI, 1.529–9.788) |
| Not admitted | 5 (22.7) | 4930 (53.7) | 4935 (53.6) | |
| Median LOS, days | 6.7 | 5.2 |
P = 0.5388 (U-test) |
|
| Highest level of care | ||||
| ICU | 3 (17.6) | 639 (15.0) | 642 (15.1) |
P = 0.5474 (U-test) |
| IMU | 1 (5.9) | 93 (2.2) | 94 (2.2) | |
| Other inpatient | 13 (76.5) | 3516 (82.8) | 3529 (82.7) | |
| Maximum respiratory support | ||||
| ECMO | 0 (0) | 17 (0.4) | 17 (0.4) |
P > 0.9999 (Fisher exact test) (room air and low-flow oxygen versus other) Odds ratio: 1.006 (95% CI, 0.3803–2.647) |
| Mechanical ventilation | 3 (17.6) | 362 (8.5) | 365 (8.6) | |
| Noninvasive ventilation | 1 (5.9) | 432 (10.2) | 433 (10.2) | |
| High-flow oxygen | 2 (11.8) | 694 (16.3) | 696 (16.3) | |
| Low-flow oxygen | 8 (47.1) | 1822 (42.9) | 1830 (42.9) | |
| Room air | 3 (17.6) | 921 (21.7) | 924 (21.7) | |
| Mortality | ||||
| Alive | 20 (90.9) | 8740 (95.2) | 8760 (95.2) |
P = 0.2838 (Fisher exact test) Odds ratio: 1.995 (95% CI, 0.459–7.462) |
| Deceased | 2 (9.1) | 438 (4.8) | 440 (4.8) | |
Data are given as n (%), unless otherwise indicated. Data include 9200 unique patients with high-quality sequence results between January 1, 2021, and May 31, 2021.
ECMO, extracorporeal membrane oxygenation; ICU, intensive care unit; IMU, intermediate care unit; LOS, length of stay.