Table 1.

Descriptive demographics and clinical variables by COVID-19 status—cohort 1 October 2020 to December 2020.

Factor	Total	No COVID	COVID-19 infection	p-value
	N = 4500	n = 4075	n = 425
Age (years)	30.9 ± 5.7	31.1 ± 5.7	28.9 ± 6.1	<0.001
Age				<0.001
1: ⩽25	859 (19.1%)	722 (17.7%)	137 (32.2%)
2: 26–34	2632 (58.5%)	2414 (59.2%)	218 (51.3%)
3: 35+	1009 (22.4%)	939 (23.0%)	70 (16.5%)
Race/ethnicity				<0.001
NH White	1539 (34.2%)	1462 (35.9%)	77 (18.1%)
Hispanic	1525 (33.9%)	1286 (31.6%)	239 (56.2%)
NH Black	325 (7.2%)	290 (7.1%)	35 (8.2%)
NH Asian	705 (15.7%)	677 (16.6%)	28 (6.6%)
Other	406 (9.0%)	360 (8.8%)	46 (10.8%)
Insurance				<0.001
Commercial	2239 (49.8%)	2137 (52.4%)	102 (24.0%)
Public	1970 (43.8%)	1666 (40.9%)	304 (71.5%)
Other/self/unknown	291 (6.5%)	272 (6.7%)	19 (4.5%)
Month				<0.001
October	1586 (35.2%)	1481 (36.3%)	105 (24.7%)
November	1492 (33.2%)	1345 (33.0%)	147 (34.6%)
December	1422 (31.6%)	1249 (30.7%)	173 (40.7%)
Hypertension				0.17
No	4464 (99.2%)	4040 (99.1%)	424 (99.8%)
Yes	36 (0.8%)	35 (0.9%)	1 (0.2%)
GDM				0.40
No	4056 (90.1%)	3668 (90.0%)	388 (91.3%)
Yes	444 (9.9%)	407 (10.0%)	37 (8.7%)
Preeclampsia				0.80
No	4299 (95.5%)	3894 (95.6%)	405 (95.3%)
Yes	201 (4.5%)	181 (4.4%)	20 (4.7%)
Birth type				0.24
Vaginal	3388 (75.3%)	3058 (75.0%)	330 (77.6%)
C-section	1112 (24.7%)	1017 (25.0%)	95 (22.4%)
Parity				<0.001
Nulliparous	1735 (38.6%)	1616 (39.7%)	119 (28.0%)
1+ previous	2765 (61.4%)	2459 (60.3%)	306 (72.0%)
Blood type				0.048
O	2204 (49.0%)	1984 (48.7%)	220 (51.8%)
A	1443 (32.1%)	1297 (31.8%)	146 (34.4%)
AB	198 (4.4%)	185 (4.5%)	13 (3.1%)
B	655 (14.6%)	609 (14.9%)	46 (10.8%)

NH: non-Hispanic; GDM: gestational diabetes mellitus.