Abstract
The patient-doctor relationship (PDR) as perceived by the patient is an important concept in primary care and psychotherapy. The PDR Questionnaire (PDRQ-9) provides a brief measure of the therapeutic aspects of the PDR in primary care.We assessed the internal and external validity of the German version of the PDRQ-9 in a representative cross-sectional German population survey that included 2,275 persons aged≥14 years who reported consulting with a primary care physician (PCP).The acceptance of the German version of this questionnaire was good. Confirmatory factor analysis demonstrated that the PRDQ-9 was unidimensional. The internal reliability (Cronbach's α) of the total score was .95. The corrected item-total correlations were≥.94. The mean satisfaction index of persons with a probable depressive disorder was lower than that of persons without a probable depressive disorder, indicating good discriminative concurrent criterion validity. The correlation coefficient between satisfaction with PDR and satisfaction with pain therapy was r = .51 in 489 persons who reported chronic pain, indicating good convergent validity. Despite the limitation of low variance in the PDRQ-9 total scores, the results indicate that the German version of the PDRQ-9 is a brief questionnaire with good psychometric properties to assess German patients' perceived therapeutic alliance with PCPs in public health research.
Highlights
The patient-doctor relationship (PDR) is an important concept in health care
F) Discriminative concurrent criterion validity was tested by comparing the PDRQ-9 total score of persons in the general population with a probable depressive disorder (PHQ-2$3) to persons without a probable depressive disorder
Sample recruitment and response rate Data were collected between May and June 2013
Summary
The patient-doctor relationship (PDR) is an important concept in health care. A good physician-patient relationship is associated with better treatment adherence, higher patient satisfaction, and a better prognosis [1,2,3,4]. Several aspects of the PDR have commonalties with the helping alliance in psychotherapy, i.e., high levels of trust, helpfulness, empathic understanding, and interpersonal openness [5]. Both the patient’s and the physician’s perspectives must be considered to understand the PDR [6]. The authors stated that in the primary care setting, a research instrument is preferably concise and easy to use. They suggested the use of the Patient-Doctor Relationship Questionnaire (PRDQ-9) as a brief (9 items) questionnaire with excellent overall internal consistency [7]
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