Table 2 Diseases of the patients in the included studies. Classification according to the International Statistical Classification of Diseases and Related Health Problems 10th Revision

1

Certain infectious and parasitic diseases

2 (4 %)

[40, 50]

2

Neoplasms

8 (16 %)

[7, 20, 28, 32, 37, 41, 44, 46]

4

Endocrine, nutritional and metabolic diseases

10 (20 %)

[22, 23, 29, 30, 47, 49, 55, 57, 59, 60]

5

Mental, Behavioral and Neurodevelopmental disorders

2 (4 %)

[27, 35]

6

Diseases of the nervous system

2 (4 %)

[6, 31]

9

Diseases of the circulatory system

10 (20 %)

[8, 10, 24, 26, 38, 43, 45, 52, 53, 58]

10

Diseases of the respiratory system

2 (4 %)

[5, 36]

12

Diseases of the skin and subcutaneous tissue

1 (2 %)

[48]

13

Diseases of the musculoskeletal system and connective tissue

3 (6 %)

[21, 51, 56]

14

Diseases of the genitourinary system

4 (16 %)

[9, 61, 62, 66]

15

Pregnancy, childbirth and the puerperium

2 (4 %)

[26, 42]

18

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

2 (4 %)

[19, 54]

20

External causes of morbidity

1 (1 %)

[33]

–

other criterion for inclusion of individual data sets

2 (4 %)

[34, 39]