Table 4.

Result of cytology by age group in women with cervical cancer (the first non-repeat test in the 12 months prior to diagnosis), and in the general population, and PPV of the result to cervical cancer

Cytology test result	Tests and cancers between April 2007 and March 2010
	Cancers	% cancers diagnosed with test result or worse	Cytology tests	% of all tests	PPV, %
	Age 20–24 years
Negative	0	100	211 930	82	0.00
Inadequate	0	100	7509	2.9	0.00
Borderline low risk	8	100	15 947	6.2	0.05
Mild dyskaryosis	6	93	13 440	5.2	0.04
Borderline high risk	8	87	2092	0.8	0.38
Moderate dyskaryosis	13	80	3722	1.4	0.35
Severe dyskaryosis	54	68	3622	1.4	1.49
?Glandular neoplasia	4	20	92	0	4.35
High-grade dyskaryosis ?invasive	18	16	71	0	25.35
Total	111		258 425		0.04
High gradea	97		9599		1.01
Very high gradeb	76		3785		2.01
	Age 25–29 years
Negative	17	100	1 108 469	87.5	0.00
Inadequate	7	98	32 223	2.5	0.02
Borderline low risk	22	97	51 910	4.1	0.04
Mild dyskaryosis	18	93	38 452	3.0	0.05
Borderline high risk	25	91	6809	0.5	0.37
Moderate dyskaryosis	68	87	12 301	1.0	0.55
Severe dyskaryosis	402	77	16 089	1.3	2.50
?Glandular neoplasia	60	19	595	0	10.08
High-grade dyskaryosis ?invasive	74	11	320	0	23.13
Total	693		1 267 168		0.05
High gradea	629		36 114		1.74
Very high gradeb	536		17 004		3.15

^aHigh grade, defined as borderline high risk or moderate dyskaryosis, or worse.

^bVery high grade, defined as severe dyskaryosis or worse. PPV = positive predictive value.