Pfingsten M, Baller M, Liebeck H, Strube J, Hildebrandt J, Schöps P
Ambulanz für Schmerzbehandlung, Zentrum Anästhesiologie, Rettungs- und Intensivmedizin, Klinikum der Georg-August-Universität
Schmerz. 2003 Oct;17(5):332-40. doi: 10.1007/s00482-003-0223-0.
The aim of our study was the analysis of the psychometric properties of the Ransford technique which is a qualitative scoring method of the pain drawing. It has been suggested that this method could be used as a brief screening technique for psychological involvement in pain complaints.
109 patients with chronic back pain filled in the pain drawing which was rated according to the technique described by Ransford and colleagues in 1976. As external criterium of validity we chose a differentiated expert rating of psychological interference.
The Ransford technique showed moderate to good coefficients of reliability (re-test, inter and intra-rater). On the other hand, the Ransford technique demonstrated very low indices of validity in order to give a prognosis about psychological interference. Sensitivity and specificity of the Ransford technique demonstrated inadequate values, which furthermore were independent from cut-off points.
The pain drawing and the Ransford technique are not sufficiently sensitive and therefore allow no screening for psychological interference in complaints of back pain.
我们研究的目的是分析兰斯福德技术的心理测量特性，该技术是一种对疼痛绘图进行定性评分的方法。有人提出，这种方法可作为一种简短的筛查技术，用于评估疼痛主诉中的心理因素。
109例慢性背痛患者填写了疼痛绘图，并根据兰斯福德及其同事在1976年描述的技术进行评分。作为有效性的外部标准，我们选择了对心理干扰的差异化专家评分。
兰斯福德技术显示出中度至良好的可靠性系数（重测、评分者间和评分者内）。另一方面，兰斯福德技术在预测心理干扰方面的有效性指标非常低。兰斯福德技术的敏感性和特异性显示出不足的值，而且这些值与临界点无关。
疼痛绘图和兰斯福德技术不够敏感，因此无法对背痛主诉中的心理干扰进行筛查。
