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Table 3 Multiple adjusted analysis of ASAS40 response in different BMI categories at 1 year of treatment with a first TNF inhibitor

From: Impact of obesity on the response to tumor necrosis factor inhibitors in axial spondyloarthritis

 

Model 1

Model 2

Variable

OR

95% CI

p

OR

95% CI

p

Obese (ref: normal BMI)

0.27

0.09–0.70

0.01

0.18

0.05–0.59

0.008

Overweight (ref: normal BMI)

0.62

0.24–1.14

0.13

0.66

0.34–1.30

0.23

Age

1.01

0.99–1.04

0.32

1.01

0.98–1.04

0.36

HLA-B27

1.31

0.65–2.68

0.46

1.35

0.67–2.79

0.41

Male sex

2.41

1.28–4.66

0.007

2.57

1.35–5.01

0.005

nr-axSpA (ref: AS)

0.38

0.18–0.78

0.009

0.38

0.18–0.78

0.01

Current smoking yes vs. no

0.65

0.36–1.18

0.16

0.64

0.35–1.16

0.15

Exercise (ref: no exercise)

0.89

0.50–1.58

0.69

0.83

0.46–1.50

0.54

BASDAI

1.10

0.95–1.27

0.19

1.10

0.95–1.27

0.20

BASMI

0.76

0.63–0.90

0.002

0.75

0.63–0.89

0.002

Elevated CRP

1.69

0.94–3.08

0.08

1.65

0.91–3.03

0.10

Enthesitis

1.34

0.72; 2.52

0.36

1.29

0.69; 2.43

0.43

DMARDs

1.17

0.51; 2.71

0.71

1.14

0.48; 2.67

0.76

NSAIDs

1.21

0.39; 4.24

0.75

1.13

0.35; 4.07

0.84

Infliximab (ref: other TNFi)

   

0.66

0.26–1.65

0.37

Obese with infliximab (ref: other TNFi)

   

3.55

0.41–30.1

0.24

Overweight with infliximab (ref: other TNFi)

   

0.73

0.15–3.26

0.68

  1. Analysis performed in 259 patients
  2. AS Ankylosing Spondylitis, BASDAI Bath Ankylosing Spondylitis Disease Activity Index, BASMI Bath Ankylosing Spondylitis Mobility Index, BMI body mass index, CI confidence interval, CRP C-reactive peptide, DMARDs disease-modifying antirheumatic drugs, HLA-B27 human leucocyte antigen-B27, nr-axSpA nonradiographic axial spondyloarthritis. NSAIDs nonsteroidal anti-inflammatory drugs, OR odds ratio, ref reference, TNFi tumor necrosis factor inhibitor