Skip to main content
letter
. 2011 Jul 26;105(4):592–593. doi: 10.1038/bjc.2011.264

Table 2. The Malmö trial assessed using a case-control design Janzon and Andersson, 1991).

  Living controls (random sample) Women dead from breast cancer Total
Participation in screening
 Yes 229 36 265
 No 71 24 95
Total 300 360  
Crude odds ratio 0.46
Adjusted (matching for age) odds ratio 0.42 (95% CI 0.22–0.78)