Table 5 Median and interquartile range of length of hospitalization of hospital discharges by the ICD-9-CM main diagnosis groups for foreign citizens from low-income countries (FCLICs) and high-income countries (FCHICs) compared with autochthonous citizens (ACs)

Total

ACs

4

(2–8)

FCHICs

4

(2–8)

0.89

FCLICs

2

(3–6)

<0.001

Circulatory system

ACs

4

(2–8)

-

FCHICs

4

(1–8)

0.67

FCLICs

3

(1–8)

0.038

Digestive system

ACs

4

(2–8)

-

FCHICs

3.5

(2–8)

0.32

FCLICs

3

(1–8)

0.014

Pregnancy, childbirth & puerperium

ACs

3

(2–4)

-

FCHICs

3

(2–4)

0.78

FCLICs

3

(2–4)

0.003

Neoplasms

ACs

5

(3–10)

-

FCHICs

6

(3–10)

0.28

FCLICs

5

(3–9)

0.51

Respiratory system

ACs

5

(3–9)

-

FCHICs

5

(2–8)

0.158

FCLICs

4

(2–7)

<0.001

Injury and poisoning

ACs

5

(2–9)

-

FCHICs

5

(2–9)

0.73

FCLICs

3

(2–8)

0.003

Genitourinary system

ACs

4

(2–6)

1

FCHICs

3

(2–5.5)

0.39

FCLICs

3

(2–5)

0.023

Nervous system & sense organs

ACs

2

(1–5)

1

FCHICs

2

(2–8)

0.044

FCLICs

2

(1–5)

0.69

Musculoskeletal system & connective tissue

ACs

5

(2–7)

-

FCHICs

5

(2–8.3)

0.31

FCLICs

4

(2–7)

0.16

Symptoms, signs & ill-defined conditions

ACs

2

(1–5)

-

FCHICs

2

(1–5.75)

0.30

FCLICs

2

(1–3)

0.011

Infectious & parasitic diseases

ACs

6

(3–11)

-

FCHICs

12

(5–16)

0.015

FCLICs

7

(4–14)

0.30

Endocrine, nutritional and metabolic diseases & immunity disorders

ACs

4

(2–8)

-

FCHICs

5

(4–7)

0.47

FCLICs

4

(2–5)

0.24

Mental disorders

ACs

7

(4–13)

-

FCHICs

5

(3–8)

0.16

FCLICs

7

(3.10.5)

0.37

Skin & subcutaneous tissue

ACs

3

(2–7)

-

FCHICs

2

(2–3)

0.41

FCLICs

2

(1–4.8)

0.056

Blood & blood-forming organs

ACs

3

(5–9)

-

FCHICs

2

(4.5-10)

0.37

FCLICs

6

(3–10)

0.83

Congenital anomalies & conditions in the perinatal period

ACs

3

(2–3)

-

FCHICs

2

(2-)

0.83

FCLICs

2

(2–5)

0.91

Mortality

ACs

6

(2–14)

-

FCHICs

8

(2.8-13)

0.67

FCLICs

6

(1–13)

0.68