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Table 1 Baseline characteristics

From: Long-term remission and biologic persistence rates: 12-year real-world data

  RA (n = 274) PsA (n = 129) p
Age, years 55 ± 11.9 44.8 ± 12.2 < 0.001
Female 207 (75.5%) 69 (53.5%) < 0.001
Disease duration, years 9 (0–51) 8 (0–40) 0.030
Education level completed
 Primary School 246 (100%) 98 (100%) NS
 Secondary School 176 (71.5%) 90 (91.8%) < 0.001
 University 56 (22.8%) 59 (60.2%) < 0.001
Employment
 Employed 37 (66.1%) 31 (91.2%) 0.008
 Unemployed 8 (14.3%) 1 (2.9%) NS
 Student 0 1 (2.9%) NS
 Other 11 (19.6%) 1 (2.9%) 0.027
Hours worked, weekly 37.2 (11.7) 41.1 (9.1) NS
Smoking status
 Never 89 (35.6%) 50 (45.5%) NS
 Ex 94 (37.6%) 35 (31.8%)
 Current 67 (26.8%) 25 (22.7%)  
HAQ score 1.3 (0.64) 0.89 (0.64) < 0.001
EMS, minutes 30 (0–1440) 30 (0–1440) NS
RF positive 195 (77.1%) 2 (2.2%) < 0.001
ACPA positive 31 (79.5%) 0 (0%) < 0.001
Erosions* 90 (47.1%) 28 (31.5%) 0.013
  1. Values are expressed as n (%), mean (SD) or median (range)
  2. HAQ Health Assessment Questionnaire, EMS early morning stiffness, RF rheumatoid factor, ACPA Anti-citrullinated protein antibodies
  3. *On X-rays of the hands and feet