Skip to main content

Table 3 Twenty combinations of diseases categories with the highest odds ratio for all-cause readmission, in comparison with patients without the combination, and the interactions between the diseases categories

From: Patterns of multimorbidity associated with 30-day readmission: a multinational study

Chronic disease 1

Chronic disease 2

OR (95% CI)

Interaction

Hematological malignancy

Esophageal disorders

3.13 (2.79;3.52)

0

Hematological malignancy

Mood disorders

2.90 (2.57;3.28)

0

Hematological malignancy

Diseases of white blood cells

2.82 (2.58;3.09)

Hematological malignancy

Thyroid disorders

2.48 (2.14;2.88)

0

Hematological malignancy

Other nervous system disorders

2.40 (2.12;2.71)

Hematological malignancy

Arthropathy and arthritis

2.23 (1.90;2.61)

0

Hematological malignancy

Chronic heart disease

2.18 (1.99;2.39)

Chronic kidney disease

Liver disease

2.03 (1.79;2.32)

0

Solid malignancy

Asthma

1.84 (1.58;2.15)

0

Chronic heart disease

Other diseases of kidney and ureters

1.84 (1.62;2.10)

0

Chronic kidney disease

Chronic ulcer of skin

1.84 (1.66;2.04)

0

Solid malignancy

Substance-related disorders

1.812(1.58;2.08)

0

Hematological malignancy

Chronic kidney disease

1.80 (1.54;2.10)

Liver disease

Chronic ulcer of skin

1.78(1.53;2.07)

0

Chronic kidney disease

Other diseases of kidney and ureters

1.73 (1.55;1.93)

0

Esophageal disorders

Liver disease

1.72 (1.54;1.92)

+

Chronic kidney disease

Substance-related disorders

1.70 (1.49;1.93)

+

Solid malignancy

Diseases of white blood cells

1.69 (1.50;1.91)

Chronic kidney disease

Diseases of white blood cells

1.67 (1.41;1.99)

0

Chronic kidney disease

Epilepsy; convulsions

1.63 (1.38;1.93)

+

  1. Abbreviations: CI confidence interval, OR odds ratio
  2. The signs “+” and “-” represent diseases categories with a significant more than multiplicative effect and less than multiplicative effect on the odds for readmission, respectively. A more than multiplicative effect means that the two diseases categories in combination increase the odds for readmission more than just by multiplying the odds for readmission of each disease category separately. The sign “0” means that the interaction is not significant