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

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

	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

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

ISSN: 1478-6362