Table 3.

Mammography Performance for Detection of Breast Cancer -All Density Groups ^†

Mammogram Type	Age	Screen Interval*	Sensitivity - Invasive	Sensitivity-DCIS	Specificity
Film-screen	30–39	First	0.68	0.88	0.87
		Annual	0.42	0.81	0.92
		Biennial	0.55	0.87	0.91
		Triennial	0.60	0.87	0.90
	40–49	First	0.80	0.93	0.85
		Annual	0.58	0.90	0.91
		Biennial	0.70	0.93	0.90
		Triennial	0.74	0.93	0.89
	50–64	First	0.89	0.94	0.87
		Annual	0.74	0.91	0.92
		Biennial	0.82	0.94	0.92
		Triennial	0.85	0.94	0.91
	65+	First	0.92	0.94	0.89
		Annual	0.80	0.90	0.94
		Biennial	0.87	0.93	0.93
		Triennial	0.89	0.93	0.92
Digital	25–39	First	0.74	0.91	0.84
		Annual	0.49	0.86	0.90
		Biennial	0.61	0.90	0.90
		Triennial	0.66	0.90	0.89
	40–49	First	0.84	0.95	0.83
		Ann	0.64	0.92	0.89
		Biennial	0.75	0.95	0.88
		Triennial	0.78	0.95	0.87
	50–64	First	0.91	0.96	0.85
		Annual	0.78	0.93	0.91
		Biennial	0.86	0.95	0.90
		Triennial	0.88	0.95	0.89
	65+	First	0.94	0.95	0.88
		Annual	0.84	0.92	0.92
		Biennial	0.90	0.95	0.92
		Triennial	0.91	0.95	0.91

^†Data from the BCSC; 1994–2013 for film-screen and 2003–2013 for digital mammogram.

^*First screen-detected cancers are cancers detected on the first screen or those found after a gap of more than 4 years