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Table 1 Patient – and disease characteristics according to regular statin use among Swedish women diagnosed with breast cancer at age 40+ from July 1st, 2007 – December 31st, 2008. They were followed up until December 31st, 2012 for breast cancer related death, and, December 31st, 2013, for all-cause mortality

From: Statin use and breast cancer survival – a Swedish nationwide study

Characteristics   All Non-regular statin use Regular statin use
Age at breast cancer diagnosis N 8809 7717 1092
  Median (min, max) 64 (40,102) 62 (40,102) 70 (42,93)
  Mean (SD) 64 (13) 63 (13) 70 (9)
Breast cancer related death
  No 7717 (87.6%) 6887 (89.2%) 981 (89.8%)
  Yes 1092 (12.4%) 830 (10.8%) 111 (10.2%)
Diabetes mellitus pre-breast cancer diagnosis
  No 8264 (93.8%) 7428 (96.3%) 836 (76.6%)
  Yes 545 (6.2%) 289 (3.7%) 256 (23.4%)
All cause mortality
  No 7113 (80.7%) 6250 (81%) 863 (79%)
  Yes 1696 (19.3%) 1467 (19%) 229 (21%)
Breast cancer stage at diagnosis
  Missing 2310 (26.2%) 2025 (26.2%) 285 (26.1%)
  0 1829 (20.8%) 1596 (20.7%) 233 (21.3%)
  1 2378 (27%) 2079 (26.9%) 299 (27.4%)
  2 1639 (18.6%) 1426 (18.5%) 213 (19.5%)
  3 427 (4.8%) 386 (5%) 41 (3.8%)
  4 226 (2.6%) 205 (2.7%) 21 (1.9%)
Type of statin beforea
  No 7435 (84.4%) 7435 (96.3%) 0 (0%)
  Lipophilic 1280 (14.5%) 264 (3.4%) 1016 (93%)
  Hydrophilic 94 (1.1%) 18 (0.2%) 76 (7%)
Type of statin used after diagnosisa None 6915 (78.6%) 6876 (89.2%) 39 (3.6%)
  Lipophilic 1602 (18.2%) 709 (9.2%) 893 (81.9%)
  Hydrophilic 281 (3.2%) 122 (1.6%) 159 (14.6%)
  1. a Refers to the most used statin