Table 2.

Study procedures for home visits in the diet, chronic kidney disease and APOL1 study in Africa

Preparation for home visits

1. Participants were called to schedule appointments for home visits

2. Participants were consented before the start of the home visit

3. Site study team clustered participants living in similar areas to manage transportation costs for visits

4. All sample collection tubes and 24h urine jugs were prelabelled

On the day of the visit

1. Study coordinators ensured that the check list for the home visit was available

2. Study coordinators ensured that the specimen collection ice box had sufficient ice

3. Study coordinators ensured availability of blood pressure cuffs in all sizes

4. Study coordinators preprinted labels for all planned/consented participants

5. Study coordinators offered masks to participants who were agreeable

6. Skilled laboratory personnel on the home visit team collected samples and they were placed on ice after collection

Participant check-out

1. Study coordinators gave participant reimbursement

2. Study coordinators confirmed all future research appointments for the participant and gave appointment cards to the participants

Home visit close of day activities

1. Study personnel ensured that specimens were collected and stored on ice

2. Two individuals checked all laboratory samples and certified that all samples were labeled and well collected

3. The team cleaned and disinfected all the equipment after each visit

4. Case report forms were stored in a safe locked bag before getting to the site

5. Team ensured that all participants’ information were kept confidential