Table 4 Multivariate analysis of factors associated with CDI in Hospitalized IBD patients according to CDI defined by lab dataset or hospitalization admission and discharge database (DAD)

5-ASA

1.30 (0.81–2.10)

0.28

1.65 (1.02–2.65)

0.040

Corticosteroids

1.71 (1.05–2.79)

0.031

1.37 (0.82–2.28)

0.23

Any antibiotic

2.21 (1.37–3.56)

0.001

2.78 (1.70–4.54)

 < 0.001

Prior hospital admission

2.00 (1.18–3.39)

0.010

2.24 (1.32–3.79)

0.003

Charlson Comorbidity index Score

0

Reference

Reference

1

0.67 (0.34–1.34)

0.26

1.01 (0.52–1.95)

0.98

2

1.72 (0.82–3.58)

0.15

1.45 (0.67–3.14)

0.34

3 + 

0.83 (0.35–1.94)

0.66

0.91 (0.42–1.96)

0.80

Ambulatory care

Lowest quartile

Reference

Reference

2^nd quartile

1.25 (0.55–2.84)

0.60

1.19 (0.50–2.83)

0.69

3^rd quartile

2.29 (1.03–5.08)

0.042

2.14 (0.95–4.81)

0.067

Highest quartile

2.07 (0.85–5.04)

0.11

2.34 (0.96–5.72)

0.063