title page
Contents
I. Background 7
II. Purpose 8
III. Patients and Methods 9
IV. Results 11
V. Discussions 15
VI. Conclusion 19
References 20
초록 32
Table 1. Methods of Surgical Treatment 22
Table 2. Frequency and percentage of the histologic type and grade of breast cancer 23
Table 3. Univariate analysis of prognostic factors. 24
Table 4. Multivariate analysis for overall and disease free survival. 25
Table 5. Percentage of patients according stage before and after year 1999. 26
Figure 1. Overall survival of breast cancer in Samsung Medical Center. 27
Figure 2. Disease free survival of breast cancer in Samsung Medical Center 28
Figure 3. Overall survival according to TNM stage in Samsung Medical Center. 29
Figure 4. Changes in operation pattern in Korea 30
Figure 5. Operative pattern changes in Samsung Medical Center. 31