Department of Psychology, Fordham University, Bronx, New York, USA.
Int J Methods Psychiatr Res. 2018 Sep;27(3):e1611. doi: 10.1002/mpr.1611. Epub 2018 Mar 2.
We employed the correspondence analysis (CA) biplot to estimate correlations between gender-age levels of cardiovascular disease patients and their psychiatric and physical symptoms. Utilization of this correlation estimation can inform clinical practice by elucidating associations between certain psychiatric or physical symptoms and specific gender-age levels.
The CA biplot utilized here was designed to visually inspect row-column category associations in a 2-dimensional plane and then to numerically estimate the category associations with correlations. To do so, we (a) estimated dimensions from row and column categories with CA; (b) verified statistical significance of dimensions with a permutation test; (c) projected row and column categories in a plan constructed with the first 2 dimensions that were statistically significant; (d) visually inspected category associations in the plane; and (e) numerically estimated category associations with correlations.
Consistent with the previous results, female cardiovascular disease patients were more likely to experience psychiatric symptoms than the male patients. However, when examining the results by gender and age, both female and male patients in their 50s and 60s tended to experience elevated rates of the psychiatric symptoms.
The CA biplot can be useful for isolating key clinical concerns among any medical populations.
我们采用对应分析（CA）双标图来估计心血管疾病患者的性别-年龄水平与他们的精神和身体症状之间的相关性。这种相关性估计的利用可以通过阐明某些精神或身体症状与特定性别-年龄水平之间的关联来为临床实践提供信息。
这里使用的 CA 双标图旨在直观地检查二维平面中的行-列类别关联，然后用相关系数数值估计类别关联。为此，我们（a）用 CA 从行和列类别中估计维度；（b）用置换检验验证维度的统计学显著性；（c）用具有统计学意义的前两个维度构建的平面中投影行和列类别；（d）在平面中直观地检查类别关联；（e）用相关系数数值估计类别关联。
与之前的结果一致，女性心血管疾病患者比男性患者更容易出现精神症状。然而，当按性别和年龄检查结果时，50 多岁和 60 多岁的女性和男性患者都倾向于出现更高的精神症状发生率。
CA 双标图可用于分离任何医疗人群中的关键临床关注点。
