Table 1. Demographic and clinical characteristics of the BPD and control samples.
|
Controls (N=52) |
BPD (N=115) |
t(d.f.) | P-value | |||
|---|---|---|---|---|---|---|
| Mean | s.d. | Mean | s.d. | |||
| Age (years) | 40.65 | 12.04 | 30.36 | 9.19 | 6.06 (165) | 8.69 × 10–9 |
| BDI (baseline) | 6.04 | 5.38 | 34.10 | 11.80 | −14.94 (148) | 2.42 × 10–31 |
| Hopelessness (baseline) | 4.03 | 2.5 | 11.30 | 4.82 | −9.39 (149) | 9.33 × 10–17 |
| BIS-10 (baseline) | 42.26 | 11.53 | 69.30 | 17.75 | −9.81 (152) | 6.45 × 10–18 |
| SCID-II BPD part | — | — | 6.52 | 1.75 | ||
| N | % | N | % | X2(d.f.) | P-value | |
| Female | 24 | 46.15 | 108 | 93.91 | 38.03(1) | 6.98 × 10–10 |
| Axis I | ||||||
| Bipolar disorder | 0 | 0 | 22 | 19.13 | ||
| Major depressive disorder | 0 | 0 | 84 | 73.04 | ||
| Schizoaffective disorder | 0 | 0 | 9 | 7.83 | ||
| CTQ | ||||||
| Physical neglect | 6 | 14.29 | 52 | 48.60 | 14.94(1) | 1.11 × 10–4 |
| Physical abuse | 4 | 9.52 | 56 | 52.34 | 22.98(1) | 1.63 × 10–6 |
| Emotional abuse | 12 | 28.57 | 91 | 85.05 | 45.07(1) | 1.89 × 10–11 |
| Emotional neglect | 18 | 42.86 | 90 | 84.11 | 25.73(1) | 3.91 × 10–7 |
| Sexual abuse | 8 | 19.05 | 57 | 53.27 | 14.36(1) | 1.51 × 10–4 |
Abbreviations: BDI, Beck Depression Inventory; BIS-10, Barrat Impulsiveness Scale; BPD, borderline personality disorder; CTQ, Childhood Trauma Questionnaire; SCID-II, Screening Interview for Axis II Disorder.