Table 2

90-day all-cause mortality following hospitalisation with pneumonia in patients with or without ankylosing spondylitis (AS)

All-cause mortality at 90 days N (%)HRs 90-day mortality
ASNon-ASCrudeAdjusted*
ASAS
All patients hospitalised for pneumonia 1997–2017†105 (12.5)59.767 (15.5)0.79 (0.66 to 0.96)0.95 (0.79 to 1.16)
 1997–200638 (13.9)25.208 (15.6)0.88 (0.64 to 1.21)1.03 (0.75 to 1.41)
 2007–2017†67 (11.8)34.559 (15.4)0.76 (0.59 to 0.96)0.94 (0.74 to 1.20)
  • HRs, including 95% CIs, calculated using Cox proportional-hazards regression analysis. Patients without AS used as reference group.

  • *Adjusted for sex, age and level of comorbidity before admission.

  • †Until 31 July 2017.