Hatch J P, de la Peña A M, Fisher J G
University of Texas Health Science Center, San Antonio.
J Urol. 1987 Oct;138(4):781-3. doi: 10.1016/s0022-5347(17)43372-6.
A study was conducted to assess the discriminant validity of patient responses to a questionnaire in distinguishing between organic and psychogenic erectile dysfunction. A total of 56 urologist-referred veterans slept for 3 nights in a sleep laboratory for nocturnal penile tumescence recording. Based on nocturnal penile tumescence results 48 patients were assigned to an organic group and the remaining 8 were assigned to a psychogenic group. A discriminant function analysis of questionnaire responses yielded a highly significant discriminant function [chi-square (19) equals 63.88, p less than 10(-6)], and all 56 patients were classified correctly into the nocturnal penile tumescence-defined organic and psychogenic groups. It was concluded that verbally reported data contain diagnostically meaningful information and that such information can compare favorably with information collected through standard laboratory-based nocturnal penile tumescence techniques.
开展了一项研究，以评估患者对问卷的回答在区分器质性和心因性勃起功能障碍方面的判别效度。共有56名由泌尿科医生转诊的退伍军人在睡眠实验室睡了3晚，用于记录夜间阴茎勃起情况。根据夜间阴茎勃起结果，48名患者被分配到器质性组，其余8名被分配到心因性组。对问卷回答进行的判别函数分析得出了一个高度显著的判别函数[卡方(19)=63.88，p<10(-6)]，并且所有56名患者都被正确分类到夜间阴茎勃起定义的器质性组和心因性组。得出的结论是，口头报告的数据包含有诊断意义的信息，并且此类信息可与通过基于标准实验室的夜间阴茎勃起技术收集的信息相媲美。
