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Table 1 Sociodemographic and clinical factors of women treated with mastectomy for breast cancer at the Siteman Cancer Center from 2000 to 2012

From: Breast reconstruction after mastectomy at a comprehensive cancer center

Variable Mean SD N
Sociodemographics
 Age at diagnosis 55 13 4154
  Frequency % N
Race
 African American 822 20 4154
 Caucasian 3332 80  
Age (years)
 <55 2018 49 4154
 ≥55 2136 51  
Type of insurance
 Privatea 1975 58 3429
 Publicb 1454 42  
Clinical factors
 Tumor stage
  Stage 0/DCIS–2 3019 81 3709
  Stage 3–4 690 19  
 Tumor grade
  Grade 1–2 2314 59 3903
  Grade 3–4 1589 41  
 ER status
  Positive 2706 74 3633
  Negative 927 26  
 PR status
  Positive 2316 64 3619
  Negative 1303 36  
 HER2 status
  Positive 206 20 1016
  Negative 810 79  
 Triple negative cancer
  No 941 88 1069
  Yes 128 12  
 Laterality of mastectomy
  Bilateral 903 22 4146
  Unilateral 3243 78  
 Type of definitive mastectomy
  Total/simple 2148 52 4126
  Modified radical 1636 40  
  Radical/extended modified radical 58 1  
  Skin/nipple-sparing 267 6  
  Mastectomy NOS 20 0.5  
 Received adjuvant chemotherapy
  No 2233 54 4109
  Yes 1876 46  
 Received adjuvant radiation
  No 2854 69 4154
  Yes 1300 31  
 Received adjuvant hormonal therapy
  No 1894 47 4058
  Yes 2164 53  
  1. DCIS ductal carcinoma in situ, ER estrogen receptor, PR progesterone receptor, HER2 human epidermal growth factor receptor 2, NOS not otherwise specified
  2. aPrivate insurance included: managed care, HMO, PPO, TRICARE, fee for service
  3. bPublic insurance included: Medicaid, Medicare, Veterans’ Affairs, Indian Health Service