Frequency distribution, mean scores, and standard deviations (SD) of predictor variables and of pre- and post-test psychometric tests
| Carriers (n=29) | Non-carriers (n=40) | ||||||
|---|---|---|---|---|---|---|---|
| Frequency (%) | Mean (SD) | Frequency (%) | Mean (SD) | ||||
| Affected parent | |||||||
| Father | 15 (51.7%) | 15 (37.5%) | |||||
| Mother | 14 (48.3%) | 25 (62.5%) | |||||
| Participant's age at parental onset of HD | 14.7 (8.0) | 14.8 (11.0) | |||||
| Subjective proximity of the onset | 12.0 (7.4) | 9.8 (12.0) | |||||
| Risk perception | 2.4 (0.9) | 2.3 (0.9) | |||||
| I think that I will be... | |||||||
| A carrier | 3 (10.3%) | 9 (22.5%) | |||||
| Probably a carrier | 11 (37.9%) | 10 (25.0%) | |||||
| “Accurate perception” | 9 (31.0%) | 14 (35.0%) | |||||
| Probably not a carrier | 0 | 3 (7.5%) | |||||
| Not a carrier | 1 (3.4%) | 0 | |||||
| (Vague or evasive answer) | 5 (17.2%) | 4 (10.0%) | |||||
| Pre-test | |||||||
| Ego strength (MMPI scale) | 59.8 (7.9) | 56.6 (11.9) | |||||
| Anxiety (STAI-trait) | 36.1 (7.3) | 38.5 (11.1) | |||||
| Depression (BDI) | 3.8 (3.7) | 6.4 (7.7) | |||||
| Post-test (one year after the test) | |||||||
| Ego strength (MMPI scale) | 60.4 (8.6) | 57.3 (12.7) | |||||
| Anxiety (STAI-trait) | 35.3 (10.6) | 35.6 (8.9) | |||||
| Depression (BDI) | 3.4 (3.9) | 4.1 (6.5) | |||||