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Table 1 Changes in age-adjusted incident rates of DCIS and/or CIS between 1980–2002

From: Overdiagnosis and overtreatment of breast cancer: Rates of ductal carcinoma in situ: a US perspective

  USA [8] England [9] Switzerland [10]
Year DCISa CISb DCISc CISc
1980 4.0    
1980–82    2.4 4.8
1983 5.0    
1983–85    1.8 3.6
1984 7.8    
1986–88    3.2 5.2
1989–91    7.3 10.6
1992 23.8 6.5   
1992–94    7.9 10.4
1995 28.8 6.8   
1998 38.0 9.4   
1999   10.5   
2001 37.8 11.6   
2002   12.0   
  1. aAdjusted to US population in 2000; badjusted to European standard population; cadjusted to population in US 1970 census. CIS, carcinoma in situ; DCIS, ductal carcinoma in situ.