Table 4.

Alternative diagnosis when achieved.

Non-Lyme differential diagnosis when reached, n = 134
Psychiatric disorders n = 38 (28%)	Neurological diseases n = 33 (25%)	Inflammatory and systemic diseases n = 30 (22%)	Various illnesses n = 23 (18%)	Other infections n = 10 (7%)
Anxiety disorder n = 4 Depression n = 15 Psychosis n = 2 Somatoform disorder n = 12 Other n = 5	Periph. neuropathy n = 5 Multiple sclerosis n = 4 Vascular leucopathy n = 3 ALS n = 2 Parkinson's disease n = 3 Small fiber neuropathy n = 3 Narrow lumbar canal n = 6 Other n = 7	Spondyloarthritis n = 8 IBD n = 3 Microcrystalline arthr. n = 4 Psoriatic arthritis n = 2 Rheumatoid arthritis n = 4 Undefined arthritis n = 4 Sjögren's syndrome=2 Other n = 3	Fibromyalgia n = 6 Arthrosis n = 4 Dermatosis n = 6 Cancer n = 2 SAS n = 2 Other n = 3	CMV n = 2 EBV n = 2 Other n = 3 Tuberculosis n = 1 TBE n = 1 Tibola n = 1

Periph., peripheral; ALS, amyotrophic lateral sclerosis; IBD, inflammatory bowel disease; arthr., arthritis; SAS, sleep apnea syndrome; CMV, cytomegalovirus; EBV, Epstein-Barr virus; TBE, tick-born encephalitis; Tibola, Tick-borne lymphadenitis.