Table 2.
The association of COVID-19 diagnosis in pregnancy and comorbidities of hypertension, diabetes, or obesity with very preterm, preterm and early term birth. Models are: 1) unadjusted and 2) adjusted for maternal age, education, WIC participation, Medi-Cal for prenatal care, adequacy of prenatal care, parity, maternal place of birth, smoking, previous cesarean delivery, previous preterm birth, interpregnancy interval.
| Very Preterm(< 32 weeks) | Preterm(< 37 weeks) | Early Term(37 - 38 weeks) | Term(39 - 44 weeks) | ||
|---|---|---|---|---|---|
| n (row %) | n (row %) | n (row %) | n (row %) | ||
| Model 1 RR (95% CI) | Model 1 RR (95% CI) | Model 1 RR (95% CI) | |||
| row n* | Model 2 aRR (95% CI) | Model 2 aRR (95% CI) | Model 2 aRR (95% CI) | ||
| All | 240,157 | 3,181 (1.3) | 21,059 (8.8) | 62,671 (26.1) | 156,427 (65.1) |
| No Hypertension, Diabetes or Obesity | |||||
| No COVID-19 | 146,114 | 1,556 (1.1) | 10,362 (7.1) | 34,873 (23.9) | 100,879 (69.0) |
| Referencea | |||||
| Referencea | |||||
| COVID-19 + | 5,089 | 87 (1.7) | 488 (9.6) | 1,400 (27.5) | 3,201 (62.9) |
| 1.7 (1.4, 2.2) | 1.4 (1.3, 1.6) | 1.2 (1.1, 1.3) | |||
| 1.6 (1.3, 2.0) | 1.3 (1.2, 1.5) | 1.1 (1.1, 1.2) | |||
| Hypertension, Diabetes or Obesity | |||||
| No COVID-19 | 85,086 | 1,442 (1.7) | 9,637 (11.3) | 25,225 (29.7) | 50,224 (59.0) |
| 1.8 (1.7, 2.0) | 1.7 (1.7, 1.8) | 1.3 (1.3, 1.3) | |||
| 1.7 (1.6, 1.9) | 1.6 (1.6, 1.7) | 1.3 (1.2, 1.3) | |||
| COVID-19 + | 3,868 | 96 (2.5) | 572 (14.8) | 1,173 (30.3) | 2,123 (54.9) |
| 2.8 (2.3, 3.5) | 2.3 (2.1, 2.5) | 1.4 (1.3, 1.5) | |||
| 2.6 (2.1, 3.1) | 2.0 (1.8, 2.2) | 1.3 (1.2, 1.4) |
* n >100% because very preterm (< 32 weeks) births are also included in the preterm (< 37 weeks) births column
a For all