Table 1.
Demographic characteristics and analysis of sample bias, n = 5,106
| Total n=5106 |
Consenters n=3037 |
Ineligible n=76 |
Non Responders n=1567 |
Active Refusers n=426 |
p value | |
|---|---|---|---|---|---|---|
| Sex | 0.02a | |||||
| Female | 2,884 (100) | 1,757 (60.9) | 45 (1.6) | 834 (28.9) | 248 (8.6) | |
| Male | 2,222 (100) | 1,280 (57.6) | 31 (1.4) | 733 (33.0) | 178 (8.0) | |
| Age (y) at study invite | <0.01c | |||||
| Mean (SD) | 60.0 (8.5) | 60.4 (8.1) | 61.5 (7.0) | 58.7 (9.1) | 61.6 (8.3) | |
| Range | (24.7–71.1) | (26.0–71.1) | (36.5–71.0) | (24.7–71.1) | (25.9–71.0) | |
| Race | 0.53a | |||||
| White | 4,944 (100) | 2,949 (59.6) | 75 (1.5) | 1,506 (30.5) | 414 (8.4) | |
| Black or African American | 24 (100) | 12 (50.0) | 0 (0.0) | 11 (45.8) | 1 (4.2) | |
| Asian | 44 (100) | 23 (52.3) | 1 (2.3) | 18 (40.9) | 2 (4.5) | |
| Other or unknown | 94 (100) | 53 (56.4) | 0 (0.0) | 32 (34.0) | 9 (9.6) | |
| Ethnicity | 0.72a | |||||
| Not Hispanic or Latino | 4,967 (100) | 2,956 (59.5) | 72 (1.4) | 1,522 (30.6) | 417 (8.4) | |
| Hispanic or Latino | 21 (100) | 11 (52.4) | 1 (4.8) | 8 (38.1) | 1 (4.8) | |
| Unknown | 118 (100) | 70 (59.3) | 3 (2.5) | 37 (31.4) | 8 (6.8) | |
| Marital status | 0.01a | |||||
| Married / partnered | 4,015 (100) | 2,435 (60.6) | 58 (1.4) | 1,170 (29.1) | 352 (8.8) | |
| No longer partneredd | 677 (100) | 389 (57.5) | 12 (1.8) | 235 (34.7) | 41 (6.1) | |
| Single, never married | 413 (100) | 213 (51.6) | 6 (1.5) | 161 (39.0) | 33 (8.0) | |
| Education | <0.01b | |||||
| Missing | 300 | 114 | 3 | 150 | 33 | |
| Grades 1–8 | 8 (100) | 2 (25.0) | 0 (0.0) | 5 (62.5) | 1 (12.5) | |
| Grades 9–11 | 38 (100) | 11 (28.9) | 1 (2.6) | 24 (63.2) | 2 (5.3) | |
| Grade 12/GED | 646 (100) | 351 (54.3) | 8 (1.2) | 206 (31.9) | 81 (12.5) | |
| College 1–3 years | 1,962 (100) | 1,134 (57.8) | 27 (1.4) | 632 (32.2) | 169 (8.6) | |
| College 4+ years | 1,223 (100) | 778 (63.6) | 19 (1.6) | 328 (26.8) | 98 (8.0) | |
| Grad/professional school | 929 (100) | 647 (69.6) | 18 (1.9) | 222 (23.9) | 42 (4.5) | |
| Registry membership | <0.01a | |||||
| Mayo Clinic Biobank | 4,786 (100) | 2,925 (61.1) | 70 (1.5) | 1,427 (29.8) | 364 (7.6) | |
| Mayo VDB | 320 (100) | 112 (35.0) | 6 (1.9) | 140 (43.8) | 62 (19.4) | |
| Tenure (months) in biobank | 0.01b | |||||
| Mean (SD) | 58.1 (19.7) | 57.1 (19.8) | 62.2 (21.6) | 59.1 (19.4) | 61.2 (19.1) | |
| Range | (5.0–116.0) | (5.0–107.6) | (10.4–107.3) | (7.2–116.0) | (9.4–110.9) | |
a
Chi-Square;
b
Kruskal Wallis;
c
ANOVA F-Test;
d
Divorced, separated, or widowed