Objectives:
Analysis of associations between changes in neurotic personality profile and reductionof suicidal ideation (SI) – or lack of such reduction – defined as its elimination or reduction of its intensity in patients who underwent a course of intensive psychotherapy conducted in integrative approach with predominance of psychodynamic approach.

Methods:
Symptom Checklist KO“O”, Neurotic Personality Questionnaire KON-2006 and Life Inventory completed by 461 women and 219 men treated due to neurotic, behavioral or personality disorders in a day hospital between 2005–2013. During the qualification for the therapy 134 women and 80 men reported SI, of whom 84.3% and 77.5% respectively improved.

Results:
Patients who improved in terms of SI obtained significantly greater reduction of global neurotic personality disintegration (neuroticism) than others (p<0.0005 in women and p=0.015 in men). Associations were found between improvement in terms of SI and greater reduction of many neurotic personality traits (p<0.05) in both genders: Negative self-esteem, Impulsiveness, Sense of alienation, Demobilization, Difficulties in emotional relations, Lack of vitality, Sense of lack of control, Sense of guilt, Difficulties in interpersonal relations, Sense of being in danger, Exaltation, Ponderings; and only in women: Feeling of being dependent on the Environment, Asthenia, Difficulties with decision making, Conviction of own resourcelessness in life, Deficit in internal locus of control and Imagination. indulging in fiction.

Conclusions:
The results confirm effectiveness of intensive psychotherapy as a treatment method that leads to comprehensive improvement encompassing reduction of neurotic personality disorders (neuroticism) and of majority of neurotic personality traits, as well as SI reduction. The revealed associations weigh in favor of hypothesis on neuroticism as SI predisposing factor in patients with neurotic, behavioral and personality disorders.