Across rheumatic diseases

Association between Mycobacterium tuberculosis infection and the risk of inflammatory arthritides

Clin Exp RheumatolPublished Retrospective cohort study

Main finding · Overall risk of IAResult — go to the resultHazard ratio 1.71 95% CI 1.51–1.93

Authors' conclusion

The increased overall risk of developing IA after tuberculosis corroborates the hypothesis that tuberculosis can trigger dysregulated immunity.

Study context

Population
South Korean National Claims database, 2010 to 2021mean follow-up 7.5 years
Participants
408,685 vs 159,675
Exposure
Incident tuberculosis vs appendectomy controls
  • Tuberculosisn = 408,685
  • Controlsn = 159,675reference
Outcome
Onset of IA (SPRA, AS and PsA) after tuberculosis
Methodological detailsnationwide claims database, multivariable Cox regression, sensitivity analysis with stabilised inverse probability of treatment weighting (sIPTW)
  • Nationwide claims database
  • Multivariable Cox regression
  • Sensitivity analysis with sIPTW

Main finding

Overall risk of IA

Hazard ratio

1.71

95% CI 1.51–1.93

Tuberculosisvs Controls
HR 1.71 (95% CI 1.51–1.93)

As reported in the abstract

Diagnosed with inflammatory arthritides (IA) (total)
1,957 (0.3%)

Observational data: associations, not effects.

Further findings

OutcomeEstimate
IA subgroups (adjusted)Tuberculosisvs ControlsSPRA cases 1,397HR (SPRA) 1.72 (95% CI 1.49–2.00)
IA subgroups (adjusted)Tuberculosisvs ControlsAS cases 481HR (AS) 1.64 (95% CI 1.30–2.06)
IA subgroups (adjusted)Tuberculosisvs ControlsPsA cases 79HR (PsA) 2.59 (95% CI 1.32–5.07)

IA subgroups (adjusted)

Replicated in the sIPTW sensitivity analysis

Original publication

Association between Mycobacterium tuberculosis infection and the risk of inflammatory arthritides. Clin Exp Rheumatol. Published 12 December 2023. doi:10.55563/clinexprheumatol/cccp8o

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