Table 2. Inclusion and exclusion criteria for screening patient eligibility prior to recruitment into the GRACE-IgANI cohort study.

Inclusion criteria	Exclusion criteria
Age ≥18 years	Secondary IgA nephropathy: e.g. due to lupus, liver cirrhosis, Henoch-Schonlein purpura.
Primary IgAN diagnosed by renal biopsy	Glomerular filtration rate as estimated by the CKD-EPI equation <10 ml/min/1.73 m 2.
Immunosuppression naive for three months prior to recruitment	Patients with systemic diseases that can affect the kidneys like diabetes, systemic lupus erythematosus, presence of HIV, HBsAg, HCV infections, malignancies etc.
Willing to come for follow-up visits	Patients with a history of psychological illness or condition which interferes with their ability to understand or comply with the requirements of the study.

IgAN, IgA nephropathy; HBsAg, hepatitis B surface antigen; HCV, hepatitis C virus.