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Table 2 Demographic characteristics of populations analyzed

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

  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]
  1. 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
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