Table 2 Prevalence of 17 comorbidities in the development and validation cohorts.

From: Recalibration and validation of the Charlson Comorbidity Index in an Asian population: the National Health Insurance Service-National Sample Cohort study

Comorbidity

Entire cohort

(N = 570,716)

Development cohort (70%)

(N = 399,502)

Validation cohort (30%)

(N = 171,214)

No comorbidity

145,929 (25.57)

102,046 (25.54)

43,883 (25.63)

Ulcer disease

211,737 (37.1)

148,101 (37.07)

63,636 (37.17)

Peripheral vascular disease

50,688 (8.88)

35,642 (8.92)

15,046 (8.79)

Mild liver disease

137,253 (24.05)

95,987 (24.03)

41,266 (24.1)

Myocardial infarct

10,170 (1.78)

7,129 (1.78)

3,041 (1.78)

Connective tissue disease

41,225 (7.22)

28,817 (7.21)

12,408 (7.25)

Congestive heart failure

27,970 (4.9)

19,582 (4.9)

8,388 (4.9)

Chronic pulmonary disease

271,438 (47.56)

190,206 (47.61)

81,232 (47.44)

Diabetes mellitus

69,665 (12.21)

48,668 (12.18)

20,997 (12.26)

Diabetes mellitus with end organ damage

35,200 (6.17)

24,644 (6.17)

10,556 (6.17)

Hemiplegia

10,154 (1.78)

7,132 (1.79)

3,022 (1.77)

Cerebrovascular disease

63,988 (11.21)

44,836 (11.22)

19,152 (11.19)

Dementia

16,524 (2.9)

11,580 (2.9)

4,944 (2.89)

Moderate or severe renal disease

7,494 (1.31)

5,274 (1.32)

2,220 (1.3)

Any tumor, leukemia, lymphoma

39,575 (6.93)

27,730 (6.94)

11,845 (6.92)

Moderate or severe liver disease

5,334 (0.93)

3,697 (0.93)

1,637 (0.96)

Metastatic solid tumor

12,410 (2.17)

8,664 (2.17)

3,746 (2.19)

AIDS

162 (0.03)

104 (0.03)

58 (0.03)

One or more comorbidity

424,787 (74.43)

297,456 (74.46)

127,331 (74.37)