Increasing Mastectomy Rates Among all Age Groups for Early Stage Breast Cancer: A 10-Year Study of Surgical Choice

: First‐line surgical options for early stage breast cancer and ductal carcinoma in situ include breast conserving surgery or mastectomy. We analyzed factors that influence the receipt of mastectomy and resultant trends over time. Registry analysis was carried out for 21,869 women who underwent up‐front surgical treatment for stage 0, I or II breast cancer between 1998 and 2007 using data from the Kentucky Cancer Registry. We examined the trend of treatment over time and assessed the probability of receiving mastectomy using multivariate logistic regression. Overall, 54.5% of women received breast conservation and 45.5% received mastectomy over a 10‐year period (annual BCS rate range: 46.9–61.2%). The overall mastectomy rate substantially decreased from 53.1% in 1998 to 38.8% in 2005 (p