Table 2 Correlation between the Dysbiosis Index Score and laboratory markers of inflammation, and disease characteristics, respectively

 C-reactive protein

98

0.35

<0.001

 Haptoglobin

98

0.34

<0.001

 Orosomucoid

98

0.39

<0.001

 α₁-antitrypsin

98

0.27

0.007

 Erythrocyte sedimentation rate

98

0.16

0.156

 IgA

98

0.13

0.266

 IgM

98

−0.05

0.654

 IgG

98

−0.05

0.632

 Faecal calprotectin

83

0.38

<0.001

 Years since onset of RP

94

−0.07

0.501

 Years since the first non-RP symptom

89

0.09

0.383

 Patient’s age at dysbiosis analysis

98

0.08

0.413

 modified Rodnan skin score

98

0.05

0.659

 Dysmotility of oesophagus

97

0.31

0.002