Comparison of depressive symptom severity scores in low-income women.
Comparison of depressive symptom severity scores in low-income women.
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DOI：
10.1097/nnr.0b013e3181f84ee9
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发表时间：
2010-11
期刊：
影响因子：
2.5
通讯作者：
Miller MD
中科院分区：
文献类型：
--
作者：
Kneipp SM;Kairalla JA;Stacciarini JM;Pereira D;Miller MD
Beck抑郁量表-II(BDI-II)和患者健康问卷-9(PHQ-9)被认为是测量抑郁症状严重程度和筛查抑郁障碍的可靠和有效的工具。很少有研究检验这两项指标的趋同或差异有效性，也没有一项研究在低收入女性中进行--尽管这一群体的抑郁率非常高。此外，受试者内部分数的差异表明，这些测量在选定的亚组中可能不太可比性。我们试图从结构效度的角度比较这两种测量方法，并检验在低收入女性中，抑郁症状严重程度得分的受试者内部差异是否可以通过选择特征来解释。在308名低收入女性的样本中，结构效度用多特征-单方法矩阵方法评估，连续症状严重程度得分的工具间差异用反向逐步选择回归选择特征，抑郁症状分类的差异用Mantel-Haenszel检验评估。收敛效度较高(Rs=0.80，p<；.001)。在包括年龄、种族、教育程度、慢性健康状况、抑郁史、感受到的压力、焦虑和/或一般症状的数量在内的预测因素中，没有一个解释BDI-II和PHQ-9之间抑郁症状评分的受试者内部差异(p>；0.05，R2<；0.04)。同样，抑郁症状分类也有一致性(X2=172和172.6，p<；0.0001)。这些发现表明，在低收入女性中，BDI-II和PHQ-9在抑郁症状严重程度测量和抑郁症状分类水平方面的表现相似，并且在基于选定人口统计学的子组之间没有差异。
The Beck Depression Inventory-II (BDI-II) and the Patient Health Questionnaire-9 (PHQ-9) are considered reliable and valid for measuring depressive symptom severity and screening for a depressive disorder. Few studies have examined the convergent or divergent validity of these two measures, and none have been conducted among low-income women – even though rates of depression in this group are extremely high. Moreover, variation in within-subject scores suggests these measures may be less comparable in select subgroups. We sought to compare these two measures in terms of construct validity, and examine whether within-subject differences in depressive symptom severity scores could be accounted for by select characteristics in low-income women. In a sample of 308 low-income women, construct validity was assessed using a multitrait-monomethod matrix approach, between-instrument differences in continuous symptom severity scores were regressed on select characteristics using backward stepwise selection, and differences in depressive symptom classification were assessed using the Mantel-Haenszel test. Convergent validity was high (rs = 0.80, p < .001). Among predictors that included age, race, education, number of chronic health conditions, history of depression, perceived stress, anxiety, and/or the number of generalized symptoms, none explained within-subject differences in depressive symptom scores between the BDI-II and PHQ-9 (p > .05, R2 < 0.04). Similarly, there was consistency in depressive symptom classification (X2 = 172 and 172.6, p < .0001). These findings demonstrate the BDI-II and PHQ-9 perform similarly among low-income women in terms of depressive symptom severity measurement and classifying levels of depressive symptoms, and do not vary across subgroups based on select demographics.