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Table 3 Reasons for erroneous M32 diagnoses assigned by rheumatologists

From: Administrative database as a source for assessment of systemic lupus erythematosus prevalence: Estonian experience

Reason for erroneous diagnosis n (%)
Unknown 24 (20.9)
Coding error 3 (2.6)
Primary diagnosis with no subsequent alternative pathology 9 (7.8)
Primary diagnosis with subsequent alternative pathology 79 (68.7)
 other systemic connective tissue 28 (24.4)
 musculoskeletal/arthritis 19 (16.5)
 dermatological 13 (11.3)
 other autoimmune 10 (8.7)
 renal 1 (0.9)
 other 8 (7.0)
Total 115 (100.0)