Table 1.

Comparison of diagnostic criteria for FM.

Author	Major criteria	Minor criteria	Clinical diagnosis
Yunus and Masi [7]	(1) Generalized musculoskeletal aching at 3 or more sites (2) Duration of 3 months or more (3) Normal labs (4) No underlying condition	(1) Chronic anxiety (2) Fatigue (3) Poor sleep (4) Chronic headaches (5) Irritable bowel syndrome (6) Subjective soft tissue swelling (7) Numbness (8) Pain modulation by:  (i) Physical activity  (ii) Anxiety/stress  (iii) Weather	Juvenile FM: 4 major with 5 tender points +3 minor Or 4 tender points + 5 minor
Wolfe et al. [4]	N/A	N/A	FM: (1) Generalized pain in at least 4 of 5 regions (2) Symptoms present for at least 3 months (3) WPI >/ = 7 and SSS >/ = 5 or WPI 4–6 and SSS >/ = 9 (4) FM diagnosis is valid irrespective of other diagnoses