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Table 1 Demographic characteristics of participants

From: Breast cancer in postmenopausal women is associated with an altered gut metagenome

  Premenopausal group P value Postmenopausal group P value
Characteristic Cases
N = 18
Controls
N = 25
Cases
N = 44
Controls
N = 46
Age (m ± sd) 37.06 ± 5.23 35.52 ± 6.02 0.389 57.45 ± 7.41 56.89 ± 6.41 0.7
BMI (m ± sd) 22.95 ± 3.88 23.01 ± 1.95 0.952 23.64 ± 2.77 23.97 ± 2.50 0.559
Age at menopause, years 49.39 ± 3.15 48.70 ± 2.87 0.29
Ethnicity, n (%)    0.607    0.985
Han 12 (66.7) 20 (80.0)   33 (75.0) 34 (73.9)  
Zhuang 5 (27.8) 4 (16.0)   8 (18.2) 9 (19.6)  
Other 1 (5.5) 1 (4.0)   3 (6.8) 3 (6.5)