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Table 2 Baseline characteristics

From: Persistence rates of abatacept and TNF inhibitors used as first or second biologic DMARDs in the treatment of rheumatoid arthritis: 9 years of experience from the Rhumadata® clinical database and registry

 

Use following csDMARD-IR

Use following first bDMARD-IR

 

Abatacept

TNFi

p value

Abatacept

TNFi

p value

n

92

613

105

212

Age, years

49.3 (13.6)

47.3 (13.2)

0.1871

45.9 (14.4)

45.5 (13.0)

0.8197

Disease duration, years

7.0 (7.8)

6.8 (7.7)

0.7980

12.1 (10.4)

10.0 (8.8)

0.0660

Female, n (%)

71 (77.2)

476 (77.7)

0.8940

84 (80.0)

156 (73.6)

0.2655

Concomitant medication use, n (%)

 csDMARDs

87 (94.6)

567 (92.5)

1.0000

87 (82.9)

174 (82.1)

1.0000

 MTX

69 (75.0)

466 (76.0)

0.7955

69 (65.7)

142 (67.0)

0.8994

 HCQ

72 (78.3)

350 (57.1)

< 0.0001

43 (41.0)

72 (34.0)

0.2640

 SSZ

11 (12.0)

45 (7.3)

0.1455

9 (8.6)

10 (4.7)

0.2095

 LEF

7 (7.6)

54 (8.8)

0.8434

7 (6.7)

16 (7.5)

1.0000

 Corticosteroids

45 (48.9)

282 (46.0)

0.6542

73 (69.5)

93 (43.9)

< 0.0001

  Number of oral corticosteroid prescriptions per 100 person-years of treatment

81.24

44.02

 

99.03

76.23

 

 TNFi used, n (%)

N/A

  

N/A

  

  Adalimumab

 

146 (23.8)

  

58 (27.4)

 

  Certolizumab

 

62 (10.1)

  

27 (12.7)

 

  Etanercept

 

239 (39.0)

  

69 (32.5)

 

  Golimumab

 

105 (17.1)

  

29 (13.7)

 

  Infliximab (Remicade)

 

60 (9.8)

  

26 (12.3)

 

  Infliximab (Inflectra)

 

1 (0.2)

  

3 (1.4)

 

Comorbidities

 Age-adjusted CCI

2.8 (1.4)

2.4 (1.3)

0.2403

2.9 (1.8)

2.6 (1.5)

0.2228

 Hyperlipidemia, n (%)

28 (30.4)

193 (31.5)

0.9044

42 (40.0)

75 (35.4)

0.4589

 Hyperglycemia, n (%)

13 (14.1)

82 (13.4)

0.8699

11 (10.5)

32 (15.1)

0.2987

 Hypertension, n (%)

37 (40.2)

290 (47.3)

0.2187

58 (55.2)

110 (51.9)

0.6329

 COPD, n (%)

37 (40.2)

194 (31.6)

0.1211

43 (41.0)

76 (35.8)

0.3905

 CVD, n (%)

11 (12.0)

75 (12.2)

1.0000

19 (18.1)

37 (17.5)

0.8769

 Charlson Comorbidity Index

1.4 (0.9)

1.2 (0.7)

0.0039

1.4 (1.2)

1.3 (0.8)

0.59

RF+, n (%)

69 (75.0)

424 (69.2)

0.2680

73 (69.5)

141 (66.5)

0.7020

ACPA+, n (%)

56 (60.9)

358 (58.4)

1.0000

55 (52.4)

107 (50.5)

1.0000

ESR, mm/h

18.7 (16.0)

24.5 (19.8)

0.0080

21.9 (19.2)

24.8 (20.8)

0.3164

CRP, mg/L

14.30 (20.20)

12.90 (20.40)

0.5875

16.30 (23.40)

11.80 (19.40)

0.1226

Patient-reported outcomes

 Patient global, VAS 0–10

5.6 (2.4)

4.8 (2.8)

0.0430

5.2 (2.7)

4.4 (2.9)

0.0324

 Patient pain, VAS 0–10

6.1 (2.6)

5.3 (3.0)

0.0401

5.7 (3.0)

5.0 (3.1)

0.1157

 Patient fatigue, VAS 0–10

5.8 (2.8)

4.7 (3.2)

0.0099

5.7 (2.8)

4.8 (3.3)

0.0597

 Morning stiffness, min

155.0 (308.3)

120.9 (274.1)

0.3676

127.3 (294.7)

93.0 (244.5)

0.3597

 HAQ

1.31 (0.61)

1.24 (0.60)

0.3661

1.51 (0.60)

1.18 (0.66)

0.0006

Physician global, VAS 0–10

4.8 (2.7)

4.0 (2.6)

0.0370

4.0 (2.6)

3.4 (2.6)

0.2256

Swollen joint count, 0–28

8.5 (5.2)

7.4 (5.3)

0.1409

7.7 (5.3)

6.5 (6.0)

0.1755

Tender joint count, 0–28

6.8 (6.4)

6.6 (5.7)

0.8451

7.3 (6.1)

5.4 (5.9)

0.0481

Disease activity measures

 CDAI

26.3 (12.7)

23.5 (11.7)

0.1416

24.8 (11.0)

18.8 (12.5)

0.0069

 SDAI

28.6 (13.1)

24.7 (12.0)

0.0639

26.3 (11.7)

20.4 (12.6)

0.0140

 DAS28-4, ESR

4.8 (1.3)

4.7 (1.3)

0.7557

4.8 (1.2)

4.5 (1.4)

0.3621

  1. Data are mean (SD), unless stated otherwise
  2. ACPA anti-citrullinated protein antibody, bDMARD biologic disease-modifying antirheumatic drug, CCI Charlson Comorbidity Index, CDAI Clinical Disease Activity Index, COPD chronic obstructive pulmonary disease, CRP C-reactive protein, csDMARD conventional synthetic disease-modifying antirheumatic drug, CVD cardiovascular disease, DAS28-4 disease activity score in 28 joints (four variables), ESR erythrocyte sedimentation rate, HAQ Health Assessment Questionnaire, HCQ hydroxychloroquine, IR inadequate response, LEF leflunomide, MTX methotrexate, RF rheumatoid factor, SDAI Simplified Disease Activity Index, SSZ sulfasalazine, TNFi tumor necrosis factor inhibitor, VAS visual analog scale