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Table 1 Characteristics of the study population (N = 127,209)

From: Association between clinic physician workforce and avoidable readmission: a retrospective database research

Characteristic

n (%)

Median (IQR)

30-day ACSC-related readmission

4698 (3.7)

 

90-day ACSC-related readmission

5842 (4.6)

 

Age, year

 

78 (72–84)

Male

68,384 (53.8)

 

BMI, kg/m2

 

22.2 (19.7–24.8)

Barthel index at discharge

 

100 (75–100)

Surgery

4071 (3.2)

 

Length of stay, day

 

11 (7–19)

Plan of home care program after discharge

8337 (6.6)

 

FTEs of clinic physicians per 100,000 population

 

99.0 (82.9–117.3)

FTEs of hospital physicians per 100,000 population

 

148.4 (117.4–204.0)

Number of hospital beds per 100,000 population

 

1223.0 (983.9–1568.4)

Population density of inhabitable areas, per km2

 

826.8 (390.0–2907.9)

Comorbidities

 Uncomplicated hypertension

49,546 (38.9)

 

 Complicated diabetes

21,141 (16.6)

 

 Uncomplicated diabetes

17,564 (13.8)

 

 Cardiac arrhythmias

16,731 (13.2)

 

 Congestive heart failure

12,609 (9.9)

 

 Chronic pulmonary disease

11,729 (9.2)

 

 Solid tumor without metastasis

8975 (7.1)

 

 Fluid and electrolyte disorders

8754 (6.9)

 

 Renal failure

7944 (6.2)

 

 Peptic ulcer disease excluding bleeding

5032 (4.0)

 

 Valvular disease

4828 (3.8)

 

 Liver disease

4670 (3.7)

 

 Deficiency anemia

3814 (3.0)

 

 Peripheral vascular disorders

3388 (2.7)

 

 Other neurological disorders

2779 (2.2)

 

 Rheumatoid arthritis

2591 (2.0)

 

 Blood loss anemia

1828 (1.4)

 

 Hypothyroidism

1609 (1.3)

 

 Depression

1578 (1.2)

 
  1. Abbreviations: IQR Interquartile range, ACSC Ambulatory care sensitive condition, BMI Body mass index, FTEs Full-time equivalents