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Table 1 Comparison of BPD patient and healthy control cohorts

From: Increased BDNF methylation in saliva, but not blood, of patients with borderline personality disorder

  BPD patients (T1) Healthy controls p value
N 41 41  
 Age 30.4 ± 8.6 30.7 ± 9.3 n.s.
 Proportion of women (%) 85.36% 85.36% n.s.
Proportion of individuals who are
 Habitual smokers 53.65% 9.76% < 0.001
 Habitual drinkers 85.37% 95.12% n.s.
 Under current medication* 85.36% 0% < 0.001
Psychiatric questionnaires
 GSI score (SCL90R) 2.1 ± 0.54 0.27 ± 0.24 < 0.001
 PST score (SCL90R) 69.88 ± 9.15 17.8 ± 13 < 0.001
 BSL23 total score 2.48 ± 0.76 0.17 ± 0.23 < 0.001
 CTQ total score 62.9 ± 24.4 33.93 ± 8.47 < 0.001
  1. Age and results from self-administered psychiatric questionnaires are displayed as mean ± standard deviation. p values derive from statistical analysis with independent t test or chi-square test for comparison of percentages
  2. *Psychopharmacological medication only
  3. n.s. not significant (p value > 0.05)