Positive n Total n Risk of SARS-CoV-2 infection (95% CI)
Maternal age
Age <25 6 62 9.7 (4.5-20.7)
Age 25-35 20 769 2.6 (1.7-4)
Age >35 6 312 1.9 (0.9-4.2)
BMI
Normal (< 24.9 kg/m2) 2 158 1.3 (0.3-5.0)*
Overweight (25.0 - 29.9 kg/m2) 8 434 1.8 (0.9-3.7)*
Obese (> 30.0 kg/m2) 22 549 4.0 (2.7-6.0)*
Race/ethnicity
African American 5 99 5.0 (2.1-11.8)*
Asian 1 123 0.8 (0.1-5.7)*
Caucasian 6 750 0.8 (0.4-1.8)*
Hispanic 18 130 13.7 (8.9-21.1)*
Other 2 28 7.1 (1.8-27.6)*
COVID-19 rate category among Massachusetts towns (based on cases/100,000 residents)
<90th 3 603 0.5 (0.2, 1.5)
90-94th 9 349 2.6 (1.4, 4.9)
>95th 20 169 11.8 (7.8, 17.9)
Household member with known SARS-CoV-2 infection
Yes 11 29 37.9 (23.8-60.4)
No 21 1114 1.9 (1.2-2.9)
Occupation
Nonessential workers 19 855 2.1 (1.3-3.3)
Healthcare workers 3 138 2.1 (0.7-6.3)
Essential workers excluding healthcare workers 9 63 13.5 (7.4-24.8)*
Insurance type
MassHealth or Medicaid 21 187 11.2 (7.5-16.8)
Commercial or out-of-pocket 11 956 1.2 (0.6-2.1)