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  • Title: An empirical evaluation of the Arizona sexual experience scale and a simple one-item screening test for assessing antipsychotic-related sexual dysfunction in outpatients with schizophrenia and schizoaffective disorder.
    Author: Byerly MJ, Nakonezny PA, Fisher R, Magouirk B, Rush AJ.
    Journal: Schizophr Res; 2006 Jan 31; 81(2-3):311-6. PubMed ID: 16298106.
    Abstract:
    We examined the reliability and construct validity of the 5-Item Arizona Sexual Experience Scale (ASEX) in patients with schizophrenia or schizoaffective disorder. In addition, we assessed the performance of two 1-item screening questions to detect sexual dysfunction as defined by a cut-off scoring criteria of sexual dysfunction for the ASEX. One question was a general question about any side effects. The second question asked specifically about sexual dysfunction. Altogether 247 participants with a DSM-IV diagnosis of schizophrenia or schizoaffective disorder provided data at a single interview. Results indicated that the ASEX has good internal consistency and construct validity for the patients with schizophrenia and schizoaffective disorder. The point-biserial correlations and logistic regression found a high degree of agreement between the one-item specific screening question for sexual dysfunction and the ASEX. Overall, sensitivity (85%), specificity (63.7%), and positive (83%) and negative (67.1%) predictive values for the specific one-item screening question were satisfactory. The single general side effect question performed poorly (sensitivity=11.3%; specificity=92.5%; positive predictive value=76%; negative predictive value=33%). The current findings demonstrate the highly acceptable psychometric properties of the ASEX in patients with schizophrenia or schizoaffective disorder. In addition, a specific one-item screening question is of clinical utility in patients with schizophrenia or schizoaffective disorder.
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