Table 1 Demographic characteristics and comorbid medical disorders in patients with herpes zoster and the matched-control cohort

Total

42,498

169,983

Follow-up

-

-

-

Total person-years

168,992

684,001

Average person-years

3.976

4.024

Sex

-

-

0.9874

Female

52.4

52.4

Male

47.6

47.6

Age, years-old

-

-

1.0000

>= 60

40.0

40.0

50-59

19.6

19.6

40-49

12.9

12.9

30-39

10.7

10.7

< 30

16.6

16.6

Comorbidities (%)

Myocardial infarct

1.4

1.2

1.12

0.95-1.33

0.1846

Congestive heart failure

4.6

3.7

1.28

1.18-1.39

<0.0001

Peripheral vascular disease

2.0

1.6

1.32

1.15-1.51

<0.0001

Cerebrovascular disease

10.5

9.5

1.19

1.13-1.25

<0.0001

Dementia

1.3

1.4

1.12

0.99-1.27

0.0667

Chronic pulmonary disease

29.6

24.6

1.38

1.33-1.43

<0.0001

Rheumatologic disease

4.2

2.9

1.92

1.74-2.10

<0.0001

Peptic ulcer disease

25.7

21.2

1.40

1.35-1.45

<0.0001

Mild liver disease

18.0

15.0

1.33

1.27-1.39

<0.0001

Diabetes (mild to moderate)

13.3

11.1

1.33

1.28-1.39

<0.0001

Diabetes (with chronic complications)

4.0

3.2

1.36

1.26-1.47

<0.0001

Hemiplegia or paraplegia

1.0

1.1

1.13

0.94-1.36

0.1897

Renal disease

6.0

4.8

1.43

1.33-1.54

<0.0001

Moderate or severe liver disease

0.4

0.4

1.09

0.82-1.45

0.9568