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Table 2 Subject characteristics in two groups according to E-DII score in 2011 in RA patients

From: Change in dietary inflammatory index score is associated with control of long-term rheumatoid arthritis disease activity in a Japanese cohort: the TOMORROW study

  E-DII score negative (n = 113) E-DII score positive (n = 64) p value Effect size
Women 103 (91) 48 (75) 0.007 0.22
Age (years) 62.0 (17.0) 59.5 (25.0) 0.13 0.09
Height (cm) 154.5 (9.9) 156.7 (13.5) 0.19 0.09
Weight (kg) 52.3 (13.4) 55.5 (15.1) 0.017 0.12
BMI (kg/m2) 22.0 (5.3) 22.9 (5.1) 0.06 0.10
Smoking 27 (24) 24 (38) 0.06 0.14
Drinking habits 42 (37) 36 (56) 0.018 0.19
RF (IU/ml) 46 (108) 40 (89) 0.49 0.06
RF positive 86 (76) 48 (75) 0.86 0.01
Anti-CCP (U/ml) 61.1 (86.2) 88.5 (89.9) 0.45 0.07
Anti-CCP positive 94 (83) 58 (91) 0.26 0.10
RA duration (years) 12.2 (17.4) 8.1 (12.5) 0.037 0.11
csDMARD user 102 (90) 60 (94) 0.58 0.06
bDMARD user 65 (58) 39 (61) 0.75 0.03
GC user 27 (24) 20 (31) 0.29 0.08
ESR (mm/h) 23 (27) 16 (25) 0.005 0.13
MMP-3 (ng/ml) 60.8 (63.0) 72.3 (93.8) 0.33 0.07
hs-CRP (mg/l) 0.13 (0.36) 0.09 (0.43) 0.72 0.05
mHAQ-DI 0.25 (0.81) 0.25 (0.97) 0.43 0.07
TJC 2 (6) 1 (3) 0.06 0.10
SJC 0 (2) 0 (2) 0.44 0.07
Patient VAS 30 (40) 24 (40) 0.60 0.05
DAS28-ESR 3.6 (2.2) 3.2 (1.7) 0.007 0.12
  1. In Age, Height, Weight, BMI, RF, Anti-CCP, RA duration, ESR, MMP-3, hs-CRP, mHAQ-DI, TJC, SJC, Patient VAS, DAS28-ESR, data were showed as median (interquartile range) and other categorical data were shown as patient number (%). There was no patient showed E-DII score zero. bDMARDs biological disease-modifying antirheumatic drugs, BMI body mass index, CCP anti-cyclic citrullinated peptide antibody, csDMARDs conventional synthetic disease-modifying antirheumatic drugs, DAS28-ESR disease activity scores in 28 joints using erythrocyte sedimentation rates, E-DII energy-adjusted dietary inflammatory index, GC glucocorticoid, hs-CRP high-sensitivity C-reactive protein, mHAQ-DI modified health assessment questionnaire disability index, MMP matrix metalloproteinase, RA rheumatoid arthritis, RF rheumatoid factor, SJC swollen joint count, TJC tender joint count, VAS visual analog scale