Table 2:
Associations between glomerular clusters and time-to-event outcomes from Cox models, unadjusted and adjusted for demographics, clinical characteristics, and disease diagnosis.
| A. Complete remission of proteinuria | ||||||
|---|---|---|---|---|---|---|
| Unadjusted | Adjusted for demographics + clinical characteristics a | Adjusted for disease diagnosis + demographics + clinical characteristics a | ||||
|
| ||||||
| HR (95% CI) | p-value | HR (95% CI) | p-value | HR (95% CI) | p-value | |
| Glomerular Clusters | <0.001 | 0.01 | 0.3 | |||
| X (reference) | ||||||
| Y | 1.82 (1.03, 3.23) | 0.04 | 1.95 (0.99, 3.85) | 0.05 | 1.60 (0.80, 3.18) | 0.2 |
| Z | 3.10 (1.79, 5.37) | <.001 | 3.29 (1.52, 7.13) | 0.003 | 2.02 (0.86, 4.74) | 0.1 |
|
| ||||||
| B. Composite of ≥40% decline in eGFR with eGFR < 90 or ESRD | ||||||
| Unadjusted | Adjusted for selected demographics + clinical characteristics a | Adjusted for disease diagnosis + selected demographics + clinical characteristics b | ||||
|
| ||||||
| HR (95% CI) | p-value | HR (95% CI) | p-value | HR (95% CI) | p-value | |
| Glomerular Clusters | <0.001 | <0.001 | 0.002 | |||
| X (reference) | ||||||
| Y | 0.19 (0.08, 0.45) | <0.001 | 0.22 (0.08, 0.57) | 0.002 | 0.22 (0.09, 0.54) | <0.001 |
| Z | 0.06 (0.02, 0.20) | <.001 | 0.11 (0.03, 0.45) | 0.002 | 0.29 (0.07, 1.12) | 0.07 |
Adjusted for demographics (patient age, sex, black race, Hispanic ethnicity) + clinical characteristics included patient age, sex, black race, Hispanic ethnicity, eGFR and UPCR at biopsy, kidney disease duration as of biopsy and immunosuppressant use at biopsy. Additional adjustment for disease diagnosis included MCD/MCD-Like vs. FSGS.
Due to a limited number of events of the composite outcome, adjustment covariates were selected based on backward elimination:
adjusted demographics + clinical characteristics included kidney disease duration as of biopsy, and eGFR and UPCR at biopsy;
adjusted demographics + clinical characteristics included kidney disease duration as of biopsy and UPCR at biopsy. Additional adjustment for disease diagnosis included MCD/MCD-Like vs. FSGS.