Lydsdottir Linda B, Howard Louise M, Olafsdottir Halldora, Thome Marga, Tyrfingsson Petur, Sigurdsson Jon Fridrik
Faculty of Medicine, University of Iceland, Reykjavik, Iceland; School of Business, Reykjavik University, Reykjavik, Iceland.
Section of Women's Mental Health, King's College, London, United Kingdom; Institute of Psychiatry, London, United Kingdom.
Midwifery. 2019 Feb;69:45-51. doi: 10.1016/j.midw.2018.10.009. Epub 2018 Oct 19.
To evaluate the psychometric properties of the Icelandic version of the Edinburgh Postnatal Depression Scale (EPDS) when used prenatal, explore the dimensionality of the scale and describe its effectiveness in identifying depression.
A sample of Icelandic women filled in the EPDS at week 16 gestation, week 24 and week 36. If screened positive in week 16 they were asked to attend a psychiatric diagnostic interview 2-4 weeks later. Every 10th woman screened negative was also asked to attend an interview.
Antenatal clinics at primary health care centres in Iceland.
In total, 2512 women receiving prenatal care participated in the study. At week 16 gestation, 2397 women filled in the Edinburgh Postnatal Depression Scale, 2025 at week 25, and 1756 at week 36. 474 women attended diagnostic interview two to four weeks after screening.
Internal reliability, convergent validity and test-retest correlation of the Icelandic version of the Edinburgh Postnatal Depression Scale appeared acceptable. An exploratory factor analysis supported a one-factor structure of the Edinburgh Postnatal Depression Scale that was confirmed by confirmatory factor analysis showing best fit for one general factor with two group factors. A cut-off score of 11 or higher had specificity of 0.89, sensitivity of 0.80 and positive predictive value of 0.44.
The Icelandic version of the Edinburgh Postnatal Depression Scale is a valid and reliable one-dimensional instrument suitable to screen for depression prenatally. We recommend using score 11 or higher as a cut-off. If women score 11, they should be re-assessed two weeks later, but if they score 12 or higher, they should be referred directly for a further assessment. A time gap of two to four weeks does weaken the scale's ability to discriminate between those suffering from Major Depression and those who screen negative.
评估冰岛语版爱丁堡产后抑郁量表（EPDS）在产前使用时的心理测量特性，探讨该量表的维度，并描述其在识别抑郁症方面的有效性。
选取冰岛女性样本，在妊娠第16周、第24周和第36周填写EPDS。若在第16周筛查呈阳性，则要求她们在2至4周后参加精神科诊断访谈。每10名筛查呈阴性的女性中也有1名被要求参加访谈。
冰岛初级卫生保健中心的产前诊所。
共有2512名接受产前护理的女性参与了该研究。在妊娠第16周，2397名女性填写了爱丁堡产后抑郁量表，第25周时有2025名，第36周时有1756名。474名女性在筛查后2至4周参加了诊断访谈。
冰岛语版爱丁堡产后抑郁量表的内部信度、收敛效度和重测相关性似乎可以接受。探索性因素分析支持爱丁堡产后抑郁量表的单因素结构，验证性因素分析证实该量表最适合一个包含两个分组因素的一般因素。截断分数为11分及以上时，特异性为0.89，敏感性为0.80，阳性预测值为0.44。
冰岛语版爱丁堡产后抑郁量表是一种有效且可靠的单维度工具，适用于产前抑郁症筛查。我们建议将11分及以上作为截断分数。如果女性得分11分，应在两周后重新评估，但如果得分12分及以上，则应直接转介进行进一步评估。2至4周的时间间隔确实会削弱该量表区分重度抑郁症患者和筛查呈阴性者的能力。
