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Table 1 Selected characteristics of subjects by study groupa

From: Risk factors for breast cancer in postmenopausal Caucasian and Chinese-Canadian women

  Mean (SD)     
   Chinese born in the West or migrated to the West before 21 Recent Chinese migrants P
  Caucasians    P b P c P d P e
  (N = 413) (N = 216) (N = 421)     
Age (years) 61.5 (6.9) 58.5 (6.7) 60.3 (6.4) <0.001 <0.001 0.03 0.004
Years lived in Western countries (years) 61.3 (6.9) 46.2 (12.7) 6.7 (2.9) <0.001 <0.001 <0.001 <0.001
Education (% yes)        
Less than 8 years 1.0 3.3 15.0     
8 to 11 years 9.7 10.7 16.9     
High School 20.9 24.2 22.8 <0.001 0.04 <0.001 <0.001
Vocational/Technical School 7.5 10.2 9.0     
College 31.1 20.9 19.0     
Bachelor's Degree or higher 29.7 30.7 17.3     
  1. a P values were based on ANOVA for continuous variables and on chi-square tests for categorical variables. Pairwise comparisons were adjusted for multiple comparisons using the Bonferroni method. Continuous variables are expressed as means (SD). Categorical variables are expressed as percent.
  2. b P values for ethnicity effect
  3. c P values for comparing Caucasians and Chinese born in the West or migrated to the West before age 21
  4. d P values for comparing Caucasians and recent Chinese migrants
  5. e P values for comparing Chinese born in the West or migrated to the West before age 21 and recent Chinese migrants
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