Table 4

Multivariate analysis of the factors potentially associated with in-hospital mortality for patients with and without type 2 diabetes in Spain, 2001–2013, with pneumonia as primary diagnosis

Diabetes OR (95% CI)No diabetes OR (95% CI)Total OR (95% CI)
Age, years
 40–64111
 65–741.47 (1.38 to 1.57)1.47 (1.42 to 1.51)1.46 (1.42 to 1.50)
 75–842.70 (2.55 to 2.87)2.49 (2.42 to 2.55)2.53 (2.47 to 2.59)
 ≥854.75 (4.47 to 5.05)4.52 (4.40 to 4.64)4.55 (4.44 to 4.66)
CCI
 0111
 11.35 (1.30 to 1.39)1.28 (1.26 to 1.31)1.30 (1.28 to 1.32)
 ≥21.50 (1.44 to 1.56)1.44 (1.41 to 1.47)1.46 (1.43 to 1.48)
Obesity0.51 (0.48 to 0.54)0.50 (0.47 to 0.52)0.50 (0.48 to 0.52)
Non-invasive MV2.04 (1.89 to 2.21)2.01 (1.92 to 2.11)2.02 (1.94 to 2.10)
Invasive MV11.53 (10.68 to 12.45)12.55 (12.06 to 13.06)12.34 (11.91 to 12.78)
Red cell transfusion1.14 (1.07 to 1.21)1.35 (1.31 to 1.40)1.30 (1.26 to 1.34)
Readmission1.91 (1.85 to 1.97)1.85 (1.82 to 1.89)1.87 (1.84 to 1.90)
CAT0.54 (0.51 to 0.57)0.53 (0.51 to 0.55)0.53 (0.52 to 0.55)
Thoracocentesis0.82 (0.73 to 0.93)0.86 (0.80 to 0.91)0.85(0.80 to 0.90)
Bronchial fibroscopy0.75 (0.67 to 0.83)0.71 (0.67 to 0.75)0.72 (0.68 to 0.75)
Streptococcus pneumoniae*0.54 (0.52 to 0.57)0.52 (0.51 to 0.53)0.52 (0.51 to 0.54)
Legionella*0.43 (0.34 to 0.53)0.38 (0.34 to 0.42)0.39 (0.35 to 0.43)
Staphylococcus aureus*1.22 (1.04 to 1.42)1.26 (1.16 to 1.37)1.25 (1.16 to 1.35)
Haemophilus influenzae*0.22 (0.15 to 0.32)0.26 (0.21 to 0.31)0.25 (0.21 to 0.29)
Year0.97 (0.96 to 0.99)0.97 (0.96 to 0.98)0.97 (0.96 to 0.98)
Diabetes0.92 (0.91 to 0.94)
  • *The pathogen ORs are all relative to the baseline of ‘no pathogen identified’.

  • CAT, computerised axial tomography of thorax; CCI, Charlson Comorbidity Index; MV, mechanical ventilation.