No pain, no gain revisited: the impact of positive and negative psychotherapy experiences on treatment outcome.

Objective: Psychotherapy may have many benefits for patients with mental health problems, but patients may also have negative experiences related to the therapy. Not much is known about these negative psychotherapy experiences and their impact on treatment outcome. The aim of this study was to examine the association between positive and negative psychotherapy experiences and treatment outcome.

Cost-effectiveness analysis of Chlamydia trachomatis screening in Dutch pregnant women.

Chlamydia trachomatis infections during pregnancy may have serious consequences for women and their offspring. Chlamydial infections are largely asymptomatic. Hence, prevention is based on screening.

Chlamydia trachomatis respiratory infection in Dutch infants.

Chlamydia trachomatis is the most common bacterial pathogen causing sexually transmitted infections in Dutch adults. As prenatal screening for C trachomatis and treatment of pregnant women is not routine practice in The Netherlands, perinatal transmission of C trachomatis may therefore occur. The presence of C trachomatis in infants less than 6 months of age who presented with respiratory complaints to the Erasmus MC-Sophia hospital was evaluated.

[A psychosis proneness-persistence-impairment model of psychotic disorders].

There is evidence that the normally transitory developmental expression of psychosis (psychosisproneness) may first of all become abnormally persistent (persistence) and later on become clinically relevant (impairment), depending on the amount of environmental risk to which the person is exposed. According to the psychosis-proneness-persistence impairment model, genetic background factors can impact on a transitory expression of psychosis. Whether or not this will lead to a poor prognosis in terms of persistence and clinical need will depend on the interaction between environmental exposure and genetic risk.

Chlamydia trachomatis as a cause of neonatal conjunctivitis in Dutch infants.

Background: Chlamydia trachomatis is the most common sexually transmitted pathogen in adults, which at delivery may be transmitted from mother to child and cause conjunctivitis and pneumonia. In The Netherlands, prenatal chlamydial screening and treatment of pregnant women is not routine practice. The contribution of C.