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Table 2 Classification according to likelihood of the diagnosis, and proportion of diagnoses within the targeted period, of validated general practitioner (GP) reported cases of disseminated Lyme borreliosis* and persisting symptoms attributed to Lyme borreliosis**

From: Physician reported incidence of early and late Lyme borreliosis

Likelihood of diagnoses for disseminated Lyme borreliosis* (n/N) Percentage (95%CI)
Criteria for classification   
Very likely diagnosis (527/590) 89.3% (86.5%-91.6%)
- Diagnosed by a medical specialist.   
OR
- Diagnosis based on clinical symptoms, laboratory diagnosis and anamnesis.
Likely diagnosis (27/590) 4.6% (3.1%-6.7%)
- Diagnosis based on clinical symptoms and anamnesis.   
OR
- Diagnosis based on laboratory diagnosis and anamnesis.
Possible diagnosis (22/590) 3.7% (2.4%-5.7%)
- Diagnosis not made by medical specialist.   
- Diagnosis not based on clinical symptoms, laboratory diagnosis and anamnesis.
- Diagnosis not based on clinical symptoms and anamnesis.
- Diagnosis not based on laboratory diagnosis and anamnesis.
OR
- GP reports that the diagnosis is uncertain.
OR
- Patient proposed diagnosis Lyme borreliosis, but GP or medical specialist disagree.
- Diagnosed by an alternative healer.
Invalid report (14/590) 2.4% (1.4%-4.1%)
- GP declared to have erroneously marked the Lyme borreliosis case on the questionnaire.   
- The diagnosis Lyme borreliosis was abandoned after further specific diagnostics.
Diagnosed within targeted period (89/141) 63.1% (54.6%-70.9%)
2009 or 2010
Likelihood of diagnoses for persisting symptoms attributed to lyme borreliosis** (n/N) Percentage (95%CI)
Criteria for classification   
Likely diagnosis (414/544) 76.1% (72.2%-79.6%)
- Diagnosed by a medical specialist.
OR   
- Diagnosis based on clinical symptoms, laboratory diagnosis and anamnesis.
Possible diagnosis (106/544) 19.5% (16.3%-23.1%)
- Diagnosis based on clinical symptoms and anamnesis.
OR
- Diagnosis based on laboratory diagnosis and anamnesis.
OR
- GP reports that the diagnosis is uncertain.
OR
- GP reports that the diagnosis is uncertain.
- Patient proposed diagnosis Lyme borreliosis, but GP or medical specialist disagree.
- Diagnosed by an alternative healer.
Invalid Report (24/544) 4.4% (2.9%-6.6%)
- GP declared to have erroneously marked the Lyme borreliosis case on the questionnaire.
- The diagnosis Lyme borreliosis was abandoned after further specific diagnostics.
Diagnosed within targeted period (41/78) 52.6% (41.0%-63.9%)
2008 or 2010
  1. 95%CI, 95% confidence interval.
  2. *“Disseminated Lyme borreliosis” includes: borrelial lymphocytoma, acrodermatitis chronica atrophicans, Lyme neuroborreliosis, Lyme arthritis, Lyme carditis, ocular manifestations.
  3. **“Persisting symptoms attributed to Lyme borreliosis” includes: encephalopathy, persisting symptoms after treatment for Lyme borreliosis with or without active Borrelia infection.