Table 1.

Demographic characteristics of responders by fibromyalgia research survey criteria

Variable	Meet criteria (n = 3,360)	Do not meet criteria (n = 674)	Total (n = 4,034)	p‐value
Age	56.6 ± 13.3	61.2 ± 13.3	57.4 ±13.4	<0.0001
Caucasian	2,978 (88.6)	612 (90.8)	3,590 (90.0)	0.10
Sex				0.13
Male	234 (7.0)	58 (8.6)	292 (7.2)
Female	3,126 (93.0)	616 (91.4)	37,42 (92.8)
BMI	29.8 ± 7.3	28.2 ± 6.6		<0.0001
WPI	12.4 ± 3.8	5.8 ± 3.6		<0.0001
SS	8.8 ± 1.9	4.9 ± 2.2		<0.0001
Fatigue	2.4 ± 0.6	1.4 ± 0.8		<0.0001
Cognition	1.8 ± 0.8	0.9 ± 0.7		<0.0001
Unrefreshing sleep	2.4 ± 0.7	1.4 ± 0.8		<0.0001

Mean ±SD or N (%).

BMI, body mass index; SD, standard deviation; SS, symptom severity; WPI, widespread pain index.