Clinical application of DNA ploidy to cervical cancer screening: A review

Table 10 Definitions of the biopsy data required for comparison of two screening tests independent of simple verification bias, Ref[80]

	Gold standard positive			Gold standard negative
	Test 1+	Test 1-	Total	Test 1+	Test 1-	Total
Test 2+	a	b	a + b	A	B	A + B
Test 2-	c	[d]	[c + d]	C	[D]	[C + D]
Total	a + c	[b + d]	[n]	A + C	[B + D]	[N]

Variables in square brackets have unknown values.