Collection of population-based cancer staging information in Western Australia – a feasibility study

Table 1 Percentage of cases staged, by cancer type and process used. Percentages shown are cumulative, beginning from the left.

Cancer type	Staged from WACR data alone (%)	Staged from WACR and HBCRs, WARTN (%)	Staged after all completed steps (no assumptions) (%)	Staged after all steps with assumption/s (%)
Group A: Could be staged now
Ovary	60^	100	100	100
Cervix	16^	95	100	100
Uterus	50^	85	95	95
Group B: Could be staged now, making MX = M0 assumption
Breast	0	12	65	95
Colorectal	12^	53	80	92
Group C: Could be staged now, with NX = N0 and MX = M0 assumptions
Melanoma	0	(0)	57	100
Prostate	2	5	34	97
Group D: Could be started now with MX = M0, but long term collection requires system changes
Stomach**	25	25	70	95
Lung	18	38	76	86
Pancreas	45	45	70	80
Thyroid**	10	10	47	79
Testis**	10	10	75	75
Kidney**	15	20	65	70
Group E: Staging not feasible at present
Oesophagus**	0	0	50	65
Bladder**	0	0	40	55
Lip	0	(0)	37	42
Lymphoma	44	(44)	44	44
Myeloma	0	(0)	0	0
Leukaemia	0	(0)	0	0
Brain	0	(0)	0	0

^ These numbers could have been higher as the external databases were searched first, and WACR later searched only for incomplete cases.
** Only one HBCR currently collects data on these cancers except bladder, for which two HBCRs are collecting data.
() Numbers in parentheses indicate that the additional data source/s indicated by the column header, was/were not accessed as they were either not applicable to the cancer type, or research suggested the additional effort would be unrewarding.

ISSN: 1478-7954