Table 3.

The most common causes of hospital readmission by study

Duration of Follow-up	30 d						6 mo	12 mo	Median 3.8 yr
Study Author (Reference)	Jasti (23)	Capelastegui (25)	Adamuz (26)	Shorr (28)	Jencks (12)	Dharmarajan (13)	Hedlund (22)	Bohannon (30)	Johnstone (24)
Readmission assessment	Chart review	Chart review	Chart review	Chart review	Claims assessment	Claims assessment	Claims assessment	Claims assessment	Claims assessment
Reasons for readmission
Most frequent	Cardiovascular	Pneumonia	Pneumonia	COPD	Pneumonia	Pneumonia	Respiratory infection	Pneumonia	Respiratory
2nd Most frequent	Pneumonia	Cardiovascular	Cardiovascular	Heart failure	Heart failure	Heart failure	Vascular	Heart failure	Pneumonia
3rd Most frequent	Pulmonary	Pulmonary	Pulmonary	Infection	COPD	COPD/asthma	Malignancy	COPD	Circulatory
4th Most frequent	Neurologic	Gastrointestinal	Neoplastic	Pneumonia	Sepsis	Sepsis	—	Sepsis	Digestive system

Definition of abbreviation: COPD = chronic obstructive pulmonary disease.