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Risk of septic arthritis in patients with rheumatoid - The British ...

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Statistical methods<br />

• Multivariable Cox proportional hazard estimates were<br />

used to compare rates between cohorts<br />

• All events occurr<strong>in</strong>g on anti-TNF or <strong>with</strong><strong>in</strong> 90 days<br />

<strong>in</strong>cluded<br />

• Analyses adjusted for:<br />

– Age<br />

– Gender<br />

– Smok<strong>in</strong>g<br />

– Diabetes<br />

– Year <strong>of</strong> registration<br />

– Disease duration<br />

– DAS28<br />

– HAQ<br />

– Basel<strong>in</strong>e steroid use<br />

– Prior jo<strong>in</strong>t replacement

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