Table 2.
Characteristics of 250 mothers with peripartum positive SARS-CoV-2 testing and 255 infants born 3/1/20 to 7/31/20 in Massachusetts.
| Participating Hospitals, n (%) | ||
|---|---|---|
| Baystate Medical Center | 20 | 7.8 |
| Beth Israel Deaconess Medical Center | 31 | 12.2 |
| Beverley Hospital | 11 | 4.3 |
| Boston Medical Center | 46 | 18.0 |
| Brigham and Women’s Hospital | 44 | 17.3 |
| Cambridge Health Alliance | 16 | 6.3 |
| Mass General Hospital | 48 | 18.8 |
| Newton Wellesley Hospital | 6 | 2.4 |
| Tufts Medical Center | 5 | 2.0 |
| UMass Memorial Medical Center | 23 | 9.0 |
| Winchester Hospital | 5 | 2.0 |
| Total | 255 | 100% |
| Month of birth, n (%) | ||
| March | 17 | 6.7 |
| April | 79 | 31.0 |
| May | 88 | 34.5 |
| June | 55 | 21.6 |
| July | 16 | 6.3 |
| Maternal demographics | ||
| Age, mean (SD) | 30.4 | 6.3 |
| Race/ethnicity, n (%) | ||
| Hispanic (any race) | 123 | 48.2 |
| Non-Hispanic White | 50 | 19.6 |
| Non-Hispanic Black | 48 | 18.8 |
| Non-Hispanic Asian | 14 | 5.5 |
| Non-Hispanic Other | 19 | 7.5 |
| Maternal language, n (%) | ||
| English | 136 | 53.3 |
| Spanish | 84 | 32.9 |
| Portuguese | 12 | 4.7 |
| Other | 23 | 9.0 |
| Social vulnerability indexa themes; percentile ranking, mean (SD) | ||
| Socioeconomic status | 65.8 | 23.3 |
| Household composition | 53.3 | 29.4 |
| Minority and language status | 71.6 | 25.6 |
| Housing and transportation | 71.5 | 22.0 |
| Overall | 70.2 | 23.8 |
| Social vulnerability index overall >90th percentile, n (%) | 68 | 26.7 |
| Severity of maternal illness, n (%) | ||
| Asymptomatic | 174 | 68.2 |
| Symptomatic | 81 | 31.8 |
| Sick at home before admission | 57 | 70.4 |
| Required hospitalization for treatment of COVID-19 | 24 | 29.6 |
| Multiple gestation, n (%) | 10 | 3.9 |
| Disposition, n (%) | ||
| Home | 253 | 99.2 |
| Transfer | 2 | 0.01 |
| Deaths | 0 | 0 |
| Infant characteristics | ||
| Liveborn, n (%) | 255 | 100.0 |
| Gestational age, weeks, mean (SD) | 37.9 | 2.6 |
| Birthweight, grams, mean (SD) | 3116.3 | 655.6 |
| Female sex, n (%) | 131 | 51.4 |
| Disposition | ||
| Home | 247 | 96.9 |
| Transfer | 7 | 2.8 |
| Died | 1 | 0.4 |
| Any SARS-CoV-2 test during the newborn hospitalization, n (%) | 225 | 88.2 |
| Any positive newborn test (among tested) | 5 | 2.2 |
| Any SARS-CoV-2 test during the 30 days post-dischargeb, n (%) | 7 | 4.6 |
| Any positive newborn test (among tested) | 1 | 14.3 |
| Positive SARS-CoV-2 test during the hospitalization or 30 days post-dischargeb | ||
| Any positive newborn test (overall) | 6 | 2.4 |
| Any positive newborn test (among tested) | 6 | 2.7 |
| Main Outcomes | ||
| Mode of delivery, n (%) | ||
| Vaginal | 142 | 55.7 |
| Cesarean birth | 113 | 44.3 |
| Preterm (<37 weeks), n (%) | 53 | 20.8 |
| Spontaneous or augmented following initiation of labor | 15 | 28.3 |
| Medically-indicated | 38 | 71.7 |
| Location of care, n (%) | ||
| Any rooming-in | 167 | 65.5 |
| Complete separation during entire hospital course | 88 | 34.5 |
| Any direct breastfeeding during the hospitalization | 152 | 59.6 |
aSocial vulnerability index uses 15 US census variables derived from zip codes and was derived by the Centers of Disease Control.
bAmong 151 infants with 1 or more encounter.