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Table 2 Baseline descriptive characteristics of the first 500 participants in the AMBER Study, Alberta, 2012-2014

From: The Alberta Moving Beyond Breast Cancer (AMBER) Cohort Study: Recruitment, Baseline Assessment, and Description of the First 500 Participants

Baseline characteristics Calgary (n = 249) Edmonton (n = 251) Total (n = 500)
Age at diagnosis (n = 500) 56.4 ± 10.8 54.7 ± 10.3 55.5 ± 10.6
<50 64 (25.7 %) 86 (34.2 %) 150 (30.0 %)
50-59 85 (34.1 %) 78 (31.1 %) 163 (32.6 %)
60-69 71 (29.0 %) 74 (29.5 %) 145 (29.0 %)
70+ 29 (11.7 %) 13 (5.2 %) 42 (8.4 %)
Marital status (n = 471)    
Married/common law 154 (68.1 %) 191 (78.0 %) 345 (73.2 %)
Not married 72 (31.9 %) 54 (22.0 %) 126 (26.8 %)
Education (n = 471)    
≤High school 51 (22.6 %) 55 (22.4 %) 106 (22.5 %)
≥University 175 (77.4 %) 190 (77.6 %) 365 (77.5 %)
Income (n = 443)    
< $50 000 37 (17.5 %) 30 (12.9 %) 67 (15.1 %)
$50 000–$100 000 72 (34.1 %) 77 (33.2 %) 149 (33.6 %)
$100 000–$150 000 34 (16.1 %) 64 (27.6 %) 98 (22.1 %)
> $150 000 68 (32.2 %) 61 (26.3 %) 129 (29.1 %)
Ethnicity (n = 471)    
Caucasian 198 (87.6 %) 197 (80.4%) 395 (83.9 %)
Other 28 (12.4 %) 48 (19.6%) 76 (16.1 %)
Menopausal status (n = 448)    
Premenopausal 76 (36.2 %) 99 (41.6%) 175 (39.1 %)
Postmenopausal 134 (63.8 %) 139 (58.4%) 273 (60.9 %)
Weight, kg (n = 492) 73.5 ± 16.6 72.4 ± 15.0 72.9 ± 15.8
Body mass index, kg/m2 (n = 492) 27.2 ± 5.7 27.1 ± 5.3 27.2 ± 5.5
Normal weight (<25 kg/m2) 102 (41.8 %) 97 (39.1 %) 199 (40.4 %)
Overweight (25–30 kg/m2) 81 (33.2 %) 88 (35.5 %) 169 (34.3 %)
Obese (>30 kg/m2) 61 (25.0 %) 63 (25.4 %) 124 (25.2 %)
First degree family history of breast cancer (n = 457)    
≥ one first degree relative 59 (26.8 %) 62 (26.2 %) 121 (26.5 %)
No first degree relatives 161 (73.2 %) 175 (73.8 %) 336 (73.5 %)
Cancer stage (n = 500)    
I (≥TIc) 103 (41.4 %) 108 (43.0 %) 211 (42.2 %)
II 129 (51.8 %) 115 (45.8 %) 244 (48.8 %)
III 17 (6.8 %) 28 (11.2 %) 45 (9.0 %)
  1. Values are means ± SD or n (%) within each study site and overall