Table 2 Schedule of enrollment, interventions, and assessments

Time point**

t₁

t₂

t₃

t₄

t₅

t₆

Enrollment

 Outreach

X

 Eligibility screen

X

 Informed consent

X

Interventions

 NS

X

 Brochure

X

 BC

X

 CD

X

Assessments

 COVID-19 knowledge (CDUHR) [34]

X

X

X

 Attitudes about COVID-19 vaccine (CDEs) [33]

X

X

X

 Attitudes about COVID-19 testing (CDEs)

X

X

X

 Confidence in government and the healthcare system (CDUHR)

X

X

X

 Comorbidities (CDEs)

X

X

X

 HIV (CDEs)

X

X

X

 COVID symptoms (CDEs)

X

X

X

 Demographics (name, address, phone, email, social media, locator information, age, race, gender, sexual preference, marital status, income, education, disabilities)

X

X

X

 Services accessed (TSR) [35]

X

X

X

 Housing (TSR and CDEs)

X

X

X

 Food access (PhenX Toolkit) [32]

X

X

X

 Health care access (CDEs)

X

X

X

 Use of technology (CDEs)

X

X

X

 Social support (Mos Social Support abbreviated version [36])

X

X

X

 Pandemic impact (PhenX Toolkit)

X

X

X

 Adherence to prevention guidelines (PhenX Toolkit)

X

X

X

 Adherence to treatment guidelines (CDEs)

X

X

X

 First COVID-19 test completion date

X

 Second COVID-19 test completion date

X

 COVID-19 test 1 result; COVID-19 test 2 result

X

 General mental health (CDEs)

X

X

X

 Violence and trauma (CDEs/PTSD Checklist 2005 [37])

X

X

X

 Alcohol and nicotine use (CDEs)

X

X

X

 Treatment fidelity

X

X

 Client satisfaction

X

X