Research Article

Frequency of Hospitalized Infections Is Reduced in Rheumatoid Arthritis Patients Who Received Biological and Targeted Synthetic Disease-Modifying Antirheumatic Drugs after 2010

Table 4

Background of the patients with bDMARD/tsDMARD initiation before 2010 and from 2010 to 2015.

VariableBefore 2010 ()from 2010 to 2015 () value

Gender, male (%)24/123 (19.5%)28/152 (18.42%)0.8774
Age at starting bDMARD/tsDMARD (IQR)57 (46–65)61 (49–70)0.0185
Disease duration until bDMARD/tsDMARD initiation (months)67.5 (16.5–162.8)43 (13–148.8)0.1632
DAS28-CRP (IQR)4.83 (4.18–6.01)4.38 (3.46–5.18)0.0003
DAS28-ESR (IQR)5.70 (4.56–6.53)5.04 (4.21–5.99)0.0026
Body weight (kg) (IQR)51.5 (45.2–56.9)53.0 (47.6–61.4)0.0738
Number of previous bDMARD/tsDMARD uses (IQR)1.5 (1-2)1 (1–2)0.0017
Prophylaxis with an antituberculosis agent78/123 (63.4%)117/152 (77.0%)0.0163
Prophylaxis with TMP-SMX4/123 (3.25%)2/152 (1.32%)0.4126
Number of PSL ≥5 mg users70/123 (56.9%)45/152 (29.6%)<0.0001
MTX use76/123 (61.8%)87/152 (57.2%)0.1866
Complication of chronic lung disease33/123 (26.8%)50/152 (32.9%)0.2931
Diabetes mellitus (%)14/123 (11.4%)19/152 (12.5%)0.853

DAS28: disease activity score including 28-joint count; CRP: C-reactive protein; bDMARD: biological disease-modifying antirheumatic drug; tsDMARDs: targeted synthetic disease-modifying antirheumatic drug; MTX: methotrexate; TMP-SMX: trimethoprim-sulfamethoxazole. Values are median (interquartile (IQR)). The values were determined using the nonparametric Wilcoxon signed-rank test and Fisher’s exact test. .