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Table 2 Questionnaire evaluation of first diagnosis

From: Identification of factors associated with diagnostic error in primary care

Variable Headland When it is filled out Explanation
1. Evaluation Of first diagnosis
Diagnosis First diagnostic impression After reason for consultation described Possible use of representativeness heuristic (“Of which disease is this specific episode of dyspnoea representative?”)
Differential diagnosis (3 possible diagnoses identified in order of likelihood) After the medical history is taken and physical examination is performed Possible use of availability heuristic (diagnostic possibilities that come to the physician’s mind at the time of diagnosis)
Diagnosis After the differential diagnosis  
Last 2 digits of patient’s social security number After diagnosis Possible use of anchoring and adjustment heuristic in estimation of the likelihood of the diagnosis being correct
Likelihood that the proposed diagnosis is correct (%) After recording the last 2 digits of the patient’s social security number
Context Subjective workload During consultation Identification of specific situational factors during the consultation that could influence the diagnostic process, in terms of both use of heuristics and performance of suboptimal cognitive acts/errors
Perceived subjective mental workload (adapted from NASA-TLX During consultation Evaluation of aspects of mental demand, physical demand, performance, effort and frustration
Adaptation of the Spanish version of the Swedish Occupational Fatigue Inventory (SOFI) During consultation Evaluation of work-related fatigue
Characteristics of the encounter between physician and patient: During consultation Characteristics of the encounter
• Consultation type
• Number of patients attended
• Patient’s number in the order of patients attended
• Consultation delay
Relationship with the patient over time: During consultation Longitudinality (capacity to provide care to patients over time)
• Time physician has been providing care for the patient
• Time physician has been providing care for the same patient list
• Number of previous visits by the patient in the last year
• Date of last visit