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Table 1 Participants’ characteristics: (n = 2966)

From: Fibromyalgia: epidemiology and risk factors, a population-based case-control study in Damascus, Syria

Variables

Total (2966) N(%)

FM (350) N(%)

Non-FM (2616) N(%)

Age (Years)

18–29

1720 (58)

250 (71.4)

1470 (56.2)

30–49

1035 (34.9)

84 (24)

951 (36.4)

 ≥ 50

211 (7.1)

16 (4.6)

195 (7.5)

Gender

Male

1315 (44.3)

111 (31.7)

1204 (46)

Female

1651 (55.7)

239 (68.3)

1412 (54)

Marital status

Single

1544 (52.1)

199 (56.9)

1345 (51.4)

In a relationship

1422 (48)

151 (43.1)

1271 (48.6)

employment status

Unemployed

1502 (50.6)

237 (67.7)

1265 (48.3)

Employed

1768 (59.6)

146 (41.7)

1622 (62)

Do you have health insurance?

No

2548 (85.9)

266 (76)

2282 (87.2)

Yes

418 (14.1)

84 (24)

334 (12.8)

Current residence

City

2412 (81.3)

288 (82.3)

2124 (81.2)

Rural

554 (18.7)

62 (17.7)

492 (18.8)

Financial status

Below average

1514 (51.1)

127(36.2)

1387 (53)

Average and above

1452 (49)

223 (63.7)

1229 (47)

What is your highest education level?

Elementary

149 (5)

14 (4)

135 (5.2)

Post-university

2817 (94.9)

336 (95.9)

2481 (94.8)

Currently diagnosed with Fibromyalgia

No

2937(99.1)

321(91.7)

2616(100)

Yes

29(0.9)

29(8.2)

0(0)

Currently diagnosed with systemic lupus erythematous

No

2936 (99)

346 (98.9)

2590 (99)

Yes

30 (1)

4 (1.1)

26 (1)

Currently diagnosed with rheumatoid arthritis

No

2803 (94.5)

308 (88)

2495 (95.4)

Yes

163 (5.5)

42 (12)

121 (4.6)

Currently diagnosed with other immune syndromes

No

2802 (94.5)

309 (88.3)

2493 (95.3)

Yes

163 (5.5)

41 (11.7)

123 (4.7)

Currently diagnosed with major depressive disorder

No

2741 (92.4)

281 (80.2)

2460 (94)

Yes

225 (7.5)

69 (19.7)

156 (6)

Currently diagnosed with general anxiety disorder

No

2677 (90.2)

281 (80.2)

2396 (91.5)

Yes

289 (9.7)

69 (19.8)

220 (8.5)

Currently diagnosed with irritable bowel syndrome

No

2535 (85.4)

260 (74.2)

2276 (87)

Yes

431 (14.5)

90 (25.8)

340 (12.9)

Currently diagnosed with restless legs syndrome

No

2846 (95.9)

278 (79.4)

2568 (98.1)

Yes

120 (4.1)

72 (20.5)

48 (1.8)