Breast Cancer: Mortality Rates | Screening Programs | Policies (Detection) | Policies (Reading)

Policies on Number of Views and Double-Reading for Population-Based Mammography Screening Programs in 21 Countries in 1995

Country	Number of Views		Double Reading Routine (Independent)	If Discordant, Resolve by
Country	Age <50	Age 50+	Double Reading Routine (Independent)	If Discordant, Resolve by
Established Programs
Australia	2, initial only	2, all screens	Yes (I)	Consensus
Canada	2, all screens²	2, all screens	No	NA
Finland	NA	2, all screens	Yes (I)	Consensus
Iceland	2, all screens³	2, all screens³	Yes	Choose suspicious for malignancy
Israel	NA	2, all screens	No	NA
Italy	NA	2, initial only	Yes	Consensus
Hungary	2, all screens	2, all screens	Yes (I)	Consensus
Japan¹	1	1	Yes (I)	Choose suspicious for malignancy
The Netherlands	NA	2, initial only	Yes (I)	Consensus
Sweden	1 or 2⁴	2, initial only	Yes (I)	Consensus
United Kingdom	NA	2, initial only	No	NA
United States	2, all screens	2, all screens	No	NA
Uruguay¹	2, all screens	2, all screens	No	NA
European Network Pilot Programs
Belgium	NA	2, all screens	Yes (I)	Third expert
Denmark	NA	1³	Yes (I)	Consensus
France	NA	1	Yes (I)	Third expert
Greece	2, initial and all⁵	2, initial and all	Yes (I)	Consensus
Ireland	NA	2, initial only	No	NA
Luxembourg	NA	2, all screens	Yes (I)	Consensus
Portugal	2, initial only	2, initial only	No	NA
Spain	2, initial only	1	No	NA

NA = Not applicable.

1 Population-based screening programs in Japan and Uruguay do not include screening mammograms, but mammography practices for these countries are noted.

2 Only in British Columbia.

3 Two views at the prevalent screen; one view for less dense breasts at subsequent screens (10-15% of examinations).

4 Decisions on number of views made by radiologist at each screening.

5 Two pilot programs contributed data and indicated difference in number of views for incident screen.