Table 1 Demographic and medical characteristics of Participants

Age (years), Mean ± SD

53.3 ± 8.2

53.7 ± 7.8

0.824

Gender, N(%)

Female

34 (85)

34 (85)

–

Male

6 (15)

6 (15)

Marital status, N(%)

Not married

1 (2.5)

2 (5)

1.000

Married

39 (97.5)

38 (95)

Education, N(%)

Middle school or lower

32 (80)

27 (67.5)

0.151

Secondary school

3 (7.5)

8 (20)

Diploma

3 (7.5)

1 (2.5)

Bachelor's degree

1 (2.5)

4 (10)

Master's degree

0

0

Doctorate or higher

1 (2.5)

0

Job, N(%)

Housewife/unemployed

30 (75)

30 (75)

0.514

Full-time employee

4 (10)

1 (2.5)

Self-employed

4 (10)

5 (12.5)

Retired

2 (5)

4 (10)

RA medications, N(%)

Prednisolone

39 (97.5)

–

Methotrexate

31 (77.5)

Hydroxychloroquine

22 (55)

Leflunomide

9 (22.5)

Sulfasalazine

3 (7.5)

Adalimumab

3 (7.5)

Methylprednisolone acetate

2 (5)

Etanercept

2 (5)

Prednisolone dose (mg/day), Mean ± SD

5.7 ± 2.2

–

Positive Anti-citrullinated protein antibody, N(%)

13 (65)

–

Smoking, N(%)

4 (10)

6 (15)

0.749

Disease duration (years), Mean ± SD

5.7 ± 6.3

–

Positive rheumatoid factor, N(%)

4 (10)

–

Remission (DAS28 < 2.6)

15 (37.5)

–

Disease activity, N(%)

Low (2.6 ≤ DAS28 < 3.2)

7 (17.5)

Moderate (3.2 ≤ DAS28 ≤ 5.1)

12 (30)

High(5.1 < DAS28)

6 (15)