Table 4. Barratt Impulsiveness Scale-11 (BIS-11) scores in our sample of female carriers of genetic mutations associated with X-linked ichthyosis (XLI) and a normative general population control sample.
| Female carriers for XLI-associated mutations (n = 92) | Normative adult female sample (n = 1184, [33]) | Statistical comparison | |
|---|---|---|---|
| Total score | 65.8±12.4 | 62.1±10.6 | t[101] = 2.77, p = 0.0067 |
| Attentional impulsivity | 18.0±4.9 | 16.7±4.1 | t[101] = 2.53, p = 0.01 |
| Motor impulsivity | 22.0 (95%CI: 20.0–23.5); 22.5±4.9 | 21.8±4.1 | t[101] = 1.38, p = 0.17 |
| Non-planning impulsivity | 25.2±5.2 | 23.6±5.0 | t[104] = 2.91, p<0.005 |
| Attention | 11.0 (95%CI: 10.0–12.0); 11.1±3.3 | 10.4±2.9 | t[102] = 2.02, p = 0.05 |
| Cognitive instability | 7.0 (95%CI: 6.0–8.0); 6.9±2.2 | 6.3±1.9 | t[101] = 2.54, p = 0.01 |
| Motor | 14.0 (95%CI: 13.0–15.5); 14.8±4.0 | 15.0±3.4 | t[101] = -0.56, p = 0.57 |
| Perseverance | 8.0 (95%CI: 7.0–8.0); 7.8±2.0 | 6.8±1.7 | t[101] = 4.58, p<0.001 |
| Self-control | 13.4±3.6 | 12.0±3.3 | t[103] = 3.53, p<0.001 |
| Cognitive complexity | 11.9±2.6 | 11.6±2.6 | t[105] = 0.96, p = 0.34 |