Table 3.
Genetic affinity.
| Total Sample n = 1933 |
Study 1 (2007) n = 370 |
Study 2 (2013) n = 1290 |
Study 3 (2019) n = 273 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GC (+) * n = 745 |
GC (−) ^ n = 1188 | GC (+) n = 200 |
GC (−) n = 170 |
GC (+) n = 313 |
GC (−) n = 977 |
GC (+) n = 232 |
GC (−) n = 41 |
|||||
| Mean (SD) | p | Mean (SD) | p | Mean (SD) | p | Mean (SD) | p | |||||
| How informed do you feel about the chances of getting cancer? (1–7) | 5.7 | 4.7 | <0.0001 | 6.1 | 4.9 | <0.0001 | 5.5 | 4.6 | <0.0001 | 5.7 | 4.9 | 0.02 |
| (1.3) | (1.8) | (1.2) | (1.4) | (1.6) | (1.8) | (1.1) | (1.8) | |||||
| How much do you know about the genetics of cancer? (1–7) |
4.6 | 3.0 | <0.0001 | 5.0 | 3.8 | <0.0001 | 4.4 | 2.8 | <0.0001 | 4.4 | 3.6 | <0.01 |
| (1.5) | (1.7) | (1.2) | (1.6) | (1.7) | (1.6) | (1.4) | (1.7) | |||||
| Sum score (2–14) | 10.0 | 7.3 | <0.0001 | 10.9 | 8.6 | <0.0001 | 9.5 | 7.1 | <0.0001 | 9.9 | 8.1 | 0.003 |
| (2.9) | (3.3) | (2.4) | (2.8) | (3.4) | (3.3) | (2.3) | (3.6) | |||||
* GC (+) Counselled; ^ GC (−) Not counselled. Bold: p-value still significant after Bonferroni correction.