Table 2.

Variables stored in PROMIS as part of the provincial pathology database, with representative examples

Variables in pathology	Examples
database
Patient details	Name, date of birth, Personal Health Number, geographic location, sex
Biopsy details	Date of biopsy, native versus transplant biopsy, surgical case number
Primary and secondary diagnoses	As per pathologists’ discretion
Quantitative pathology details	Number of glomeruli
	Number of obsolete glomeruli
	Number of segmentally sclerotic glomeruli Number of glomeruli with crescents
	Severity of interstitial fibrosis and tubular atrophy
	Severity of arteriolar and arterial vascular disease
Immunofluorescence findings	0-3+ for each of IgG, IgM, IgA, C3 and C1q
Disease-specific classifications	IgA nephropathy: MEST score
	Transplant allograft: Banff classification
	Lupus nephritis: ISN/RPS classification
	FSGS: Columbia classification
	ANCA vasculitis: EUVAS classification

MEST = based on Oxford classification [12]. ISN/RPS = International Society of Nephrology / Renal Pathology Society. FSGS = focal segmental glomerulosclerosis.