Table 1 Relative serious infectious event risk associated with baseline age categories and medically treated comorbidities included in age-adjusted comorbidity index

Age, years

<50

Reference

Reference

0

≥50 to < 60

1.29 (0.58–2.87)

1.39 (0.99–1.96)

1

≥60 to < 70

1.14 (0.44–2.94)

1.40 (0.92–2.12)

1

≥70

2.18 (0.70–6.84)

2.93 (1.69–5.09)

3

1.98 (0.59–6.58)

1.61 (0.90–2.89)

2

2.67 (0.77–9.27)

1.29 (0.56–2.97)

2

N/C

1.33 (0.52–3.43)

0

1.34 (0.69–2.63)

0.96 (0.70–1.32)

0

2.39 (0.82–6.93)

1.47 (0.81–2.67)

2

N/C

0.87 (0.42–1.78)

0

2.30 (0.98–5.39)

1.16 (0.73–1.86)

2

1.00 (0.22–4.51)

1.46 (0.75–2.83)

1