Table 1 Baseline characteristics of the patient population
Variable | Total | Arabs | Jews | p-value |
|---|---|---|---|---|
Fibromyalgia diagnosis N (%) | 7686 (1.50) | 872 (0.91) | 6814 (1.63) | < 0.0001a |
Age | ||||
Mean (SD) | 54.71 (13.80) | 49.20 (10.97) | 55.42 (13.96) | < 0.0001b |
Median (IQR¶) | 56.00 (45–64) | 49.00 (42–56) | 57.00 (45–65) | |
Gender (female) N (%) | 6901 (89.79) | 769 (88.19) | 6131 (89.99) | 0.111a |
Immigrant N (%) | 3101 (40.35) | 83 (9.52) | 3018 (44.29) | < 0.0001a |
Years since immigration to Israel | ||||
 < 5 years | 17 (0.55) | 0 (0) | 17 (0.56) | 0.765a |
 5–10 years | 40 (1.29) | 0 (0) | 40 (1.33) | |
 > 10 years | 3044 (98.16) | 83 (100) | 2961 (98.11) | |
Socio-economic level N (%) | ||||
 Low | 2828 (36.79) | 588 (67.43) | 2240 (32.87) | < 0.0001a |
 Middle | 2486 (32.34) | 34 (3.90) | 2452 (35.98) | |
 High | 2372 (30.86) | 250 (28.67) | 2122 (31.14) | |
Disease duration (years) Median (IQR¶) | 7.84 (3.23–12.03) | 8.06 (3.07–13.20) | 7.83 (3.25–11.91) | 0.097c |
BMI | ||||
 Median (IQR¶) | 28.23 (24.56–32.59) | 30.11 (26.49–34.36) | 28.04 (24.34–32.39) | < 0.0001c |
 Missing values N (%) | 562 (7.31) | 83 (9.52) | 479 (7.03) | 0.010a |
Other pain syndrome N (%) | ||||
 At least one other localized pain syndrome | 7306 (95.06) | 854 (97.94) | 6452 (94.69) | < 0.0001a |
 Low back pain | 7229 (94.05) | 849 (97.36) | 6380 (93.63) | < 0.0001a |
 Temporomandibular pain | 1892 (24.62) | 251 (28.78) | 1641(24.08) | 0.003a |
Autoimmune inflammatory rheumatic disease N (%) | 1244 (16.19) | 125 (14.33) | 1119 (16.42) | 0.127a |
Psychiatric co-morbidity N (%) | ||||
 At least one other psychiatric disorder | 4704 (61.20) | 500 (57.34) | 4204 (61.70) | 0.014a |
 Anxiety and/or depression | 4594 (59.77) | 497 (57.00) | 4097 (60.13) | 0.082a |
 Posttraumatic stress disorder | 586 (7.62) | 27 (3.10) | 559 (8.20) | < 0.0001a |
Charlson co-morbidity score Median (IQR¶) | 2.00 (1–4) | 1 (0–3) | 2 (1–4) | < 0.0001c |