Table 3

Univariate and multivariate analyses of all-cause mortality in patients withClostridium difficile infection (CDI)

CharacteristicsAll-cause mortality rateUnivariate analysisMultivariate analysis
Per centp ValueOR (95% CI)p Value
All11.0 (102/924)
Age (years)
 ≤747.1 (23/326)Ref.
 75–8413.3 (47/353)<0.052.08 (1.19 to 3.62)<0.05
 ≥8513.1 (32/245)1.86 (0.98 to 3.55)0.06
Sex
 Men12.2 (64/524)Ref.
 Women9.5 (38/400)0.210.78 (0.49 to 1.24)0.29
Underlying disease
 Non-infectious10.3 (64/619)Ref.
 Infectious12.5 (38/305)0.370.99 (0.60 to 1.62)0.97
Comorbidities
 Malignant tumours
  Not present10.6 (67/630)Ref.
  Present11.9 (35/294)0.571.54 (0.94 to 2.53)0.09
 Diabetes
  Not present11.6 (89/765)Ref.
  Present8.2 (13/159)0.270.71 (0.37 to 1.35)0.29
 Renal failure
  Not present10.7 (84/784)Ref.
  Present12.9 (18/140)0.460.90 (0.49 to 1.65)0.73
 Heart failure
  Not present9.3 (70/756)Ref.
  Present19.0 (32/168)<0.012.12 (1.26 to 3.55)<0.01
 Respiratory failure
  Not present9.2 (69/754)Ref.
  Present19.4 (33/170)<0.0011.98 (1.19 to 3.32)<0.01
 Cirrhosis
  Not present11.2 (100/895)Ref.
  Present6.9 (2/29)0.760.61 (0.13 to 2.83)0.53
Indicators of nutritional status
 Parenteral nutrition or enteral feeding
  Not present9.4 (53/563)Ref.
  Present13.6 (49/361)0.051.16 (0.73 to 1.84)0.53
 Serum albumin (g/dL)
  ≥3.54.0 (5/124)Ref.
  2.7–3.47.2 (27/376)<0.0011.55 (0.57 to 4.21)0.39
  ≤2.616.5 (70/424)3.50 (1.33 to 9.22)<0.05
CDI treatments
 Cessation of antibiotics
  Not present12.5 (65/519)Ref.
  Present9.1 (37/405)0.110.77 (0.48 to 1.22)0.26
 Probiotics (for intestine treatment)
  Not present13.8 (52/378)Ref.
  Present9.2 (50/546)<0.050.66 (0.42 to 1.04)0.08
 Anti-CDI drugs
  Not present15.2 (32/210)<0.05Ref.
  Vancomycin alone7.4 (32/433)0.43 (0.25 to 0.75)<0.01
  Metronidazole alone13.5 (32/237)0.85 (0.48 to 1.51)0.59
  Vancomycin and metronidazole13.6 (6/44)0.75 (0.27 to 2.08)0.57