Table 2.
Demographics and clinical characteristics of the study participants of the eligible studies.
| Number of Participants | Mean Age (Standard Deviation) | Race/Ethnicity | Alcohol Consumption (g/day) | Family History of Breast Cancer | Natural Menopause | Surgical (Bilateral oophorectomy/hysterectomy) Induced Menopause | Hormone Use | Mean BMI | Ref. |
|---|---|---|---|---|---|---|---|---|---|
| 173 | 60.65 | 149 (86%) White | 4.3 | 56 (32.4) | 31 (17.9) | 73 (42.2) (ever) | 30.4 | (41) | |
| 7 (4.0%) African American | |||||||||
| 2 (1.2%) Hispanic | |||||||||
| 9 (5.2%) Asian | |||||||||
| 2 (1.2%) Native American | |||||||||
| 3 (1.7%) Other | |||||||||
| 1804 | 62.3 | 1640 (86.1%) White | 868 (48.1) current | (42) | |||||
| 542 | 60.6 | 198 current/former (36.5) | 38 (7.0) | 0 current | 27.2 | (40) | |||
| 35 | 57.2 | 31 (88.6%) White | 33.3 | (36) | |||||
| 43 | 57.3 | 41 (97.7%) White | 7 (16.3) | 18 (41.9) ever | 25.6 | (19) | |||
| 421 | 58 (5) | 373 (85.4%) White | 7.3 | 153 (35) | 117 (24.8) | 261 (62%) ever | 30.9 | (47) | |
| 35 (4.3%) African American | |||||||||
| 12 (2.8%) Hispanic | |||||||||
| 8 (1.7%) Asian | |||||||||
| 11 (4.3%) Other | |||||||||
| 99 | 27.1 | (28) | |||||||
| 766 | 61 | 384 (50) ever | 766 (100) | 84 (11) ever | 27.2 (4.6) | (10) | |||
| 57 | 60 | (12) | |||||||
| 307 | 61 | 279 (91%) White | 29 | (37) | |||||
| 806 | 60.1 (5.2) | 2.9 | 77 (9.6) ever | 26.2 (4.8) | (43) | ||||
| 320 | 60.9 | 289 (90%) White | 4.7 | 66 (21) first degree | 146 (46) ever | 29.2 | (45) | ||
| 243 | 60 | 56(23) | 29.2 | (48) | |||||
| 163 | 60.7 | 141 (86.6%) White | Less than 2 drinks/day | 0 | 30.45 | (44) | |||
| 324 | 57.5 (5.9) | Yes | 12 (3.7) | 23.3 (3.0) | (13) | ||||
| 937 | 59.8 | 916 (97.7) White | 3.4 | 234 (25.0) | 805 (85.9) | 80 (8.53) | 380 (40.5) ever | 25.1 | (23) |
| 99 | 60 | 93 (94%) White | Yes | 26 | (17) | ||||
| 30 | 56.6 | 27.5 | (18) | ||||||
| 1093 | 59.5 | Yes | 625 (57) | 154 (14) ever | 26.06 | (7) | |||
| 16 | 58 | 14 (88%) White | none actively | 27 | (14) | ||||
| 1 (6%) African American | |||||||||
| 1 (6.6%) Asian | |||||||||
| 940 | (22) | ||||||||
| 2082 | 69 | 3.96 | 116 (13.4) | 27.1 | (43) | ||||
| 400 | 59.5 | 364 (91%) White | 2.7 | 72 (18) | 80 (20) | 117 (29.3) | 29.2 | (36) | |
| 37 | 61.7 | 37 (100%) White | under 2 drinks/day | 13 (35) | 27.7 | (16) | |||
| 305 | 56.6 | Yes | 6 (2) | (26) | |||||
| 22 | 64.1 (1.7) | No | No | 11 (current) | 32.1 | (38) | |||
| 267 | 64.8 (6.9) | 210 (78.7%) White | 2 servings/week | 89 (33) | not in last 3 months | 30.1 (6.4) | (46) | ||
| 42(15.6%) African American | |||||||||
| 4 (1.5%) Hispanic | |||||||||
| 4 (1.5%) Asian | |||||||||
| 3 (1.1%) Native American | |||||||||
| 3 (1.1%) Other | |||||||||
| 60 | 55.7 | 0 | 23.5 | (28) | |||||
| 7 | 55.3 (5.5) | 6 (85.7%) White | 33.6 | (49) | |||||
| 1 (14.3%) Asian | |||||||||
| 653 (blood) 27488 (analytical) | 62.4 | 27.1 | (11) | ||||||
| 59 | 57.4 | Yes | 26.7 | (21) | |||||
| 106 | 48-69 | 0 | 0 | (24) | |||||
| 53 | 58.2 | 39 (74.5%) White | Yes,.9 drinks/day | 9 (17.6) | 0 current | (9) | |||
| 11 (21.6%) African American | |||||||||
| 2 (3.9%) Asian | |||||||||
| 25 | 52.5 | 0 last 6 months | 26.9 | (12) | |||||
| 39 | 65.5 | 0 last 6 months | 13 >30 | (20) | |||||
| 17 | 57 | 0 | 0 during study | 28 | (15) | ||||
| 64 | 58.3 | 60 (93.8%) White | 48 (yes) | 5 (7.8) | 64 (100) | 0 | 11 ever | 24.7 | (27) |
| 20 | 54.3 (5.7) | 27.3 | (33) | ||||||
| 74 | 60 | 28.1 | (34) | ||||||
| 18 | 56.9 | 0 during study | 18 (100%) | 0 last 6 months | 25.2 | (29) | |||
| 57 | 60 | (32) | |||||||
| 144 | 60 | 144 (100%) Asian | (30) | ||||||
| 167 | (31) |
Abbreviation for BMI is body mass index and Ref. is reference.