Table 2.

Eligibility criteria for controls

Inclusion criteria	Exclusion criteria
Self-reported as female Age ≥18 and ≤75 years No diagnosis of SLE, systemic sclerosis or other connective tissue disease Self-reported as black or African American	Being a prisoner or institutionalised individual Unwilling or unable to give informed consent Current chronic infection or the development of any infection within the past 14 days, as reported by the participant Current malignancy as reported by participant Any physical, mental or other factors in the judgement of the PI will impact participant safety, privacy and data integrity

PI, Principal Investigator.