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Table 2 Descriptive characteristics of lifetime residential history for breast cancer cases and controls: WEB Study, 1996–2001;

From: Assessing spatio-temporal variability of risk surfaces using residential history data in a case control study of breast cancer

  Erie and Niagara (n = 15487) Outside (n = 4752) Total (n = 20240)
  Case Control Case Control Case Control
  Premenopausal
Total numbers of residences in lifetime 1661 2767 432 948 2093 3715
Average numbers of residences per participant 5.8 4.9 3.2 3.4 5.0 4.4
Average years in each residence* (Mean ± SD) 5.6 ± 6.0 6.2 ± 6.6 4.3 ± 5.4 3.9 ± 4.9 5.3 ± 5.9 5.5 ± 6.3
  Postmenopausal
Total numbers of residences in lifetime 4217 6842 1290 2082 5508 8924
Average numbers of residences per participants 5.4 5.0 3.5 3.2 4.8 4.4
Average years in each residence* (Mean ± SD) 6.9 ± 7.3 7.3 ± 7.9 4.8 ± 5.6 5.2 ± 6.3 6.3 ± 7.0 6.7 ± 7.6
  1. * Excludes residences with missing data for length of residence.