Table 2.

Validity of APDC cancer diagnoses compared with the NSW Cancer Registry for selected cancer types, July 2001 to December 2010

Cancer type	Cases in NSWCR	Cases in APDC	PPV	Sensitivity	Specificity
Bladder	523	1253	35%	84%	99.7%
Breast	4172	4376	86%	90%	99.8%
Colorectal	3597	3747	91%	95%	99.9%
Kidney	575	616	85%	91%	100.0%
Lung	1225	1151	86%	81%	100.0%
Melanoma	3748	2459	71%	47%	99.8%
Non-Hodgkin Lymphoma	1003	1080	71%	76%	99.9%
Pancreatic	271	283	81%	84%	100.0%
Prostate	7256	6401	86%	76%	99.7%
Stomach	282	314	78%	87%	100.0%
Unknown primary	306	659	29%	62%	99.8%
Uterine	543	535	93%	92%	100.0%

APDC Admitted Patient Data Collection, NSWCR New South Wales Cancer Registry, PPV Positive predictive value