In this study of 42,760 asymptomatic women, the overall diagnostic accuracy of digital and film mammography as a means of screening for breast cancer was similar, but the former method was better among women under the age of 50 years, women with radiographically dense breasts, and premenopausal or perimenopausal women. In 42,760 asymptomatic women, the overall diagnostic accuracy of digital and film mammography was similar, but digital mammography was better among women under 50 years, women with radiographically dense breasts, and premenopausal or perimenopausal women. There is now general agreement that screening mammography reduces the rate of death from breast cancer among women who are 40 years of age or older. 1 , 2 Meta-analyses of eight large, randomized trials found a reduction in the mortality rate of 16 to 35 percent among women 50 to 69 years of age who were assigned to screening mammography, 1 whereas women who were 40 to 49 years of age at entry had a smaller but significant reduction of 15 to 20 percent. 1 – 3 The smaller benefit of screening in younger women is probably due to a lower incidence of breast . . .