Prevalence of fibromyalgia in France: a multi-step study research combining national screening and clinical confirmation: The DEFI study (Determination of Epidemiology of FIbromyalgia)

Table 2 Demographic characteristics of populations analyzed

	Patients responding to LFES-SQ questionnaire		Patients with potential or established fibromyalgia		Patients attending consultation with rheumatologist
	LFES-SQ+*	LFES-SQ-	CS+	CS-	FM +	FM -
Number of patients	232	2849	96	49	20	76
Age; Mean ± SD 95%CI	61.8 ± 17.3 [59.5;64.0]	54.4 ± 19.2 [53.7;55.1]	58.2 ± 14.7 [55.2;61.2]	62.1 ± 18.6 [56.7;67.4]	56.9 ± 13.2 [50.7;63.1]	58.8 ± 15.0 [55.4;62.3]
Males N (%) 95%CI	67 (28. 9) [23.1;34.71]	1132 (39.7) [37.9;41.5]	28 (29.2) [20.1;38.3]	16 (32.7) [19.5;45.8]	3 (15.0) [0.0;30.7]	26 (34.2) [23.5;44.9]
Females N (%) 95%CI	165 (71.1) [65.3;77.0]	1717 (60.3) [58.5;62.1]	68 (70.8) [61.7;79.9]	33 (67.4) [54.2;80.5]	17 (85.0) [69.4;100.0]	50 (65.8) [55.1;76.5]

LFES-SQ = London Fibromyalgia Epidemiology Study- Screening Questionnaire; CS+: patients attending consultation with rheumatologist and completing questionnaire; CS-: patients completing questionnaire but not attending consultation with rheumatologist; FM+: = confirmed diagnosis of fibromyalgia; FM-: = non-confirmed diagnosis of fibromyalgia

ISSN: 1471-2474