Table 1.
Demographics and clinical characteristics of the samples.
| Characteristics | Total Sample n = 1933 |
Study 1 (2007) n = 370 |
Study 2 (2013) n = 1290 |
Study 3 (2017) n = 273 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GC (+) * n = 745 |
GC (−) ^ n = 1188 |
p | GC (+) n = 200 |
GC (−) n = 170 |
p | GC (+) n = 313 |
GC (−) n = 977 |
p | GC (+) n = 232 |
GC (−) n = 41 |
p | |
| Age (years)—mean (SD) | 50.3 (10.3) | 48.5 (11.0) | <0.001 | 50.6 (11.0) | 48.7 (16.0) | 0.53 | 48.7 (7.0) | 48.3 (9.7) | 0.53 | 52 (12.8) | 51 (15.3) | 0.70 |
| Race and ethnicity—White (%) | 78.4 | 69.5 | <0.001 | 91.0 | 94.1 | 1 | 67.1 | 64.2 | 0.38 | 82.8 | 95.1 | 0.07 |
| Married or Partnered—Yes (%) | 86.7 | 93.9 | <0.001 | 75.5 | 66.5 | 0.02 | 99.7 | 99.5 | 1 | 78.9 | 75.6 | 0.69 |
| Elementary school (%) | 10.3 | 20.9 | <0.0001 | 8.5 | 14.1 | 0.04 | 15.7 | 22.7 | 0.001 | 4.7 | 4.9 | 0.79 |
| High school degree (%) | 50.1 | 56.9 | 24.5 | 31.2 | 62.3 | 61.4 | 55.6 | 56.1 | ||||
| University/Post-graduate (%) | 38.9 | 20.7 | 67.0 | 54.7 | 21.4 | 14.3 | 38.4 | 31.7 | ||||
| Employed—Yes (%) | 64.0 | 64.1 | 1 | 65.5 | 67.6 | 0.74 | 66.1 | 63.8 | 0.48 | 59.9 | 58.5 | 1 |
| Cancer diagnosis—Yes (%) | 69.5 | 50.6 | <0.0001 | 53.5 | 11.8 | <0.0001 | 89.7 | 59.2 | <0.0001 | 56.0 | 7.3 | <0.001 |
| Family history cancer—Yes (%) | 80.8 | 85.4 | 0.01 | 67.5 | 71.2 | 0.51 | 88.5 | 87.2 | 0.61 | 81.9 | 100.0 | <0.01 |
* GC (+) Counselled; ^ GC (−) Not counselled.