Table 4 Factors associated with positive fibromyalgia screen using FiRST

Age

42.2 (15.4)

37.8 (14.8)

0.288

Age at SLE diagnosis

28.6 (12.5)

28.8 (11.6)

0.959

Married

28 (68.3)

13 (65.0)

0.797

Unemployed

21 (51.2)

8 (40.0)

0.410

White collar

9 (22.0)

6 (30.0)

0.351

BMI

27.1 (5.7)

26.0 (3.8)

0.471

PHQ-9 ≥ 10

8 (19.5)

14 (70.0)

0.001

GAD-7 ≥ 10

6 (14.6)

12 (60.0)

< 0.001

MSPSS

68.1 (12.0)

67.5 (12.2)

0.851

SLEDAI

8.2 (8.1)

6.9 (10.9)

0.663

SF-12

 MCS-12

52.1 (3.6)

51.6 (3.1)

0.622

 PCS-12

44.9 (8.7)

34.9 (8.5)

< 0.001

 Constitutional symptoms

28 (68.3)

12 (60.0)

0.902

Organ involvement

 Kidney

17 (41.5)

2 (10.0)

0.017

 Eye

4 (9.8)

6 (30.0)

0.039

 Heart

25 (61.0)

10 (50.0)

0.696

 Mucocutaneous

35 (85.4))

16 (80.0)

0.510

 Joints

36 (87.8)

16 (80.0)

0.906

 Hematological

37 (90.2)

14 (70.0)

0.188

 Vascular

23 (56.1)

15 (75.0)

0.108

 Gastrointestinal

1 (2.4)

2 (10.0)

0.216

 Pulmonary

14 (34.1)

5 (25.0)

0.727

 Neuropsychiatry

5 (12.2)

4 (20.0)

0.282

 Osteoporosis

6 (14.6)

3 (15.0)

0.571

 Osteopenia

11 (26.8)

6 (30.0)

0.559

Treatment

 Glucocorticoids

29 (70.7)

16 (80.0)

0.328

 Mycophenolate

6 (14.6)

18 (90.0)

0.297

 Hydroxychloroquine

31 (75.6)

18 (90.0)

0.163

 Tacrolimus

5 (12.2)

2 (10.0)

0.584

 Azathioprine

13 (31.7)

7 (35.0)

0.797

 Methotrexate

4 (9.8)

1 (5.0)

0.466

 Leflunomide

0 (0)

1 (5.0)

0.328

 Cyclosporine

1 (2.4)

0 (0)

0.672

Laboratory results

 ESR

37.0 (26.9)

33.2 (23.9)

0.611

 CRP

7.2 (12.3)

5.2 (5.3)

0.512

 Creatinine

0.84 (0.37)

0.79 (0.46)

0.609

 Lymphocytes

1.8 (9.8)

1.7 (0.71)

0.654

 Neutrophils

3.9 (2.0)

3.1 (1.3)

0.148

 Platelets

281.9 (92.2)

249.8 (77.7)

0.203

 Hemoglobin

11.8 (1.4)

11.9 (1.6)

0.917

 NLR

2.5 (2.7)

2.8 (2.1)

0.663

 PLR

121.3 (18.9)

84.2 (19.8)

0.447

 Ds-DNA

18 (43.9)

7 (35.0)

0.473

 Low C3

10 (24.4)

5 (25.0)

0.511

 Low C4

5 (12.2)

2 (10.0)

0.639