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Table 1 Baseline demographic and disease characteristics, treatment and comorbidities between persistent and nonpersistent patients

From: Medication persistence over 2 years of follow-up in a cohort of early rheumatoid arthritis patients: associated factors and relationship with disease activity and with disability

Variable Persistent-patients (n = 32) Nonpersistent patients (n = 43) P value
Socio-demographic?    
   Female sex (n (%)) 27 (84.4%) 36 (83.7%) 1
   Age at baseline evaluation (years) 36.1 ± 12.6 42.5 ± 13.7 0.04
   Years of education 10.2 ± 3.6 10.1 ± 3.8 0.90
   Low socioeconomic status (n (%)) 27 (84.4%) 38 (88.8%) 0.87
   Single (n (%)) 17 (53%) 18 (42%) 0.36
Disease characteristics    
   Number of American College of Rheumatology criteria 5.3 ± 0.7 5 ± 1.2 0.23
   Time since first symptom (months) 5.5 ± 2.9 5.2 ± 2.7 0.55
   Disease activity score (28 joints) 6.3 ± 1.2 6.2 ± 1.3 0.65
   Health assessment questionnaire (0 to 3) 1.5 ± 0.8 1.5 ± 0.9 0.91
   Physician global assessment of disease activity visual analogue scale (0 to 100) 49.1 ± 23 43.8 ± 20.9 0.30
   Patient pain visual analogue scale (0 to 100) 60.4 ± 24.8 58.6 ± 26 0.76
   Patient overall disease visual analogue scale (0 to 100) 62.1 ± 28 61.1 ± 26.4 0.87
   Erythrocyte sedimentation rate (mm/hour) 36.6 ± 26.8 29.8 ± 18.1 0.19
   C-reactive protein (mg/dl) 3.4 ± 5.1 2.2 ± 2.9 0.17
   Patients with rheumatoid factor (n (%)) 23 (71.9%) 30 (69.8%) 1
   Patients with antibodies to cyclic citrullinated peptides (n (%)) 22 (68.8%) 29 (69%)a 1
   Patients with comorbidity (n (%)) 12 (38%) 15 (35%) 1
Baseline treatment at the clinic    
   Corticosteroid use (n (%)) 9 (28.1%) 11 (25.6%) 1
   Number of DMARDs/patient 2 ± 0.7 1.8 ± 0.8 0.36
   Number of drugs for comorbid conditions/patient 1.75 ± 1.3 1.4 ± 0.8 0.40
   Number of total drugs/patient 3.6 ± 1.3 3.4 ± 1.2 0.56
Previous treatment    
   Corticosteroid use (n (%)) 4 (12.5%) 9 (29.9%) 0.38
   DMARD use (n (%)) 11 (34.4%) 12 (27.9%) 0.61
   Number of DMARDs/patient (among users) 1.5 ± 0.5 1.4 ± 0.5 0.86
  1. Data presented as the mean ± standard deviation unless otherwise indicated. DMARD, disease-modifying antirheumatic drug. aOne missing data.