Table 1 Number of patients, characteristics, and number of direct and inverse comorbidities for each of the 11 most prevalent chromosome abnormalities in the Danish population.

From: Comorbidity landscape of the Danish patient population affected by chromosome abnormalities

Chromosome abnormality

ICD-10 diagnosis code(s)

Number of patients

Number of direct comorbidities

Number of inverse comorbidities

Median age at first diagnosis (SD)

Median age at death (SD)

Median follow-up years (SD)

Patau syndrome (trisomy 13)

Q91.4, Q91.5, Q91.6, Q91.7

72

21

0

0.00 (12.47)

0.02 (12.93) (n = 55)

0.08 (7.38)

Edwards syndrome (trisomy 18)

Q91.0, Q91.1, Q91.2, Q91.3

175

29

0

0.00 (14.72)

0.02 (9.64) (n = 126)

0.18 (7.58)

Down syndrome (trisomy 21)

Q90

3,474

236

56

21.29 (23.00)

56.65 (19.66) (n = 931)

16.20 (6.64)

Female Down syndrome

 

1,601

181

34

22.36 (23.23)

56.37 (19.23) (n = 438)

15.87 (6.63)

Male Down syndrome

 

1,873

194

32

20.30 (22.79)

57.18 (20.06) (n = 493)

16.41 (6.65)

Non-mosaic Down syndrome

Q90.0

1,050

211

10

0.24 (17.69)

51.31 (25.56) (n = 166)

16.90 (6.27)

Mosaic Down syndrome

Q90.1

62

15

0

7.89 (19.73)

56.65 (23.78) (n = 11)

18.25 (6.13)

Klinefelter syndrome (47,XXY)

Q98.0, Q98.1, Q98.2, Q98.4

764

88

1

28.12 (18.11)

58.32 (15.89) (n = 53)

18.97 (5.34)

Triple X syndrome

Q97.0

65

6

0

3.13 (11.74)

NAa

13.35 (6.62)

XYY syndrome

Q98.5

81

12

0

12.50 (12.75)

NAa

17.95 (5.04)

Turner syndrome (45,X)

Q96

870

119

9

16.75 (19.19)

61.41 (20.89) (n = 86)

18.86 (5.67)

Non-mosaic Turner syndrome

Q96.0

241

48

0

12.31 (15.08)

55.14 (22.64) (n = 14)

19.70 (5.30)

Mosaic Turner syndrome

Q96.3

58

1

0

10.36 (14.70)

NAa

12.49 (6.28)

Wolf–Hirschhorn syndrome

Q93.3

51

37

0

2.02 (12.06)

0.62 (15.31) (n = 8)

10.79 (7.15)

Cri-du-chat syndrome

Q93.4

62

32

0

6.28 (18.24)

24.29 (22.58) (n = 9)

15.69 (7.08)

Angelman syndrome

Q93.5C

80

33

0

5.09 (14.95)

NAa

13.88 (5.93)

Fragile X syndrome

Q99.2

206

29

0

7.64 (19.27)

68.88 (22.44) (n = 7)

16.77 (6.13)

Female Fragile X syndrome

 

58

3

0

10.47 (19.35)

NAa

14.54 (6.17)

Male Fragile X syndrome

 

148

22

0

6.61 (19.29)

65.04 (25.22) (n = 5)

17.27 (6.10)

  1. ICD-10 International Classification of Diseases version 10.
  2. aFewer than five patients were available.