Sexual dysfunction in outpatients with schizophrenia in Turkey: a cross-sectional study

BACKGROUND: Sexual dysfunction is one of several factors related to medication compliance in patients taking antipsychotic medication but the magnitude of this problem is unknown. AIM: Compare the self-reported sexual functioning of clinically stable patients with schizophrenia taking antipsychotic medication to that of healthy controls using the Turkish version of the 5-item Arizona Sexual Experience Scale (ASEX). This scale, which has previously been validated in Turkey, assesses 5 components of sexual function: sex drive, sexual arousal, vaginal lubrication/penile erection, ability to achieve orgasm, and satisfaction with orgasm. METHODS: The Scale for the Assessment of Positive Symptoms, the Scale for Assessment of Negative Symptoms, and ASEX were administered to 101 clinically stable outpatients with schizophrenia (38 females and 63 males). The ASEX was also administered to 89 control subjects (41 females and 48 males) without a history of mental illness. Respondents were classified as having sexual dysfunction if ASEX total score (range 5-30) >18, if any ASEX item score (range 1-6) ≥ 5, or if 3 or more ASEX items ≥4. RESULTS: Male patients with schizophrenia have significantly more self-reported sexual dysfunction than healthy controls (46% vs. 8%). The prevalence of sexual dysfunction is higher in female patients than in male patients (68% vs. 46%), but it was also very high in healthy female controls (68%), so the sexual dysfunction of female patients cannot be attributed to their illness or to the medications they are taking. Within the patient group, there was no significant relationship between the severity of positive or negative symptoms and the severity of sexual dysfunction, and the severity of sexual function was not different between patients taking first-generation or second-generation antipsychotic medications. CONCLUSIONS: The very different findings by gender in Turkey highlights the importance of assessing location-specific and gender-specific sexual norms when trying to assess the role of mental illness and medications on sexual functioning. Prospective studies are needed to distinguish the relative importance of cultural norms, the schizophrenic illness, and the use of antipsychotic medication in the etiology and course of sexual dysfunction among individuals with schizophrenia.