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Table 1 Patient demographics and clinical data

From: Dendritic cells provide a potential link between smoking and inflammation in rheumatoid arthritis

  Synovia Nodules
  Smokers(n = 6*) Non-smokers(n = 11*) Smokers(n = 4) Non-smokers(n = 14)
Female, % 83 64 100 71
Age, years** 58 (37-79) 55 (35-74) 47 (44-50) 61(48-77)
Disease duration, years** 11 (2-30) 18 (3-30) 19 (13-30) 19 (2-44)
Nodules, n 5 (83%) 9 (82%) 4 (100%) 14 (100%)
Erosions, n 6 (100%) 10 (91%) 4 (100%) 13 (93%)
RF positive, n 6 (100%) 10 (91%) 4 (100%) 13 (93%)
ACPA Positive, n/total ACPA Titer†† 5/5 (100%)
157 ± 45
8/9 (89%)
177 ± 26
4/4 (100%)
193 ± 57
12/13 (92%)
157 ± 22
ESR** 34 (3-85) 33 (13-64) 30 (13-64) 33 (6-54)
  1. * Three patients (one smoker, two non-smokers) provided two synovial samples. ** mean values with the range in parenthesis. For some patients, tissue samples pre-dated the availability of tests for anticitrullinated peptide antibody (ACPA); †† Mean values ± SEM. Mean ACPA titers were not significantly different. n, number of patients; RF, rheumatoid factor; SEM, standard error of the mean,]; ESR, erythrocyte sedimentation rate.