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Table 1 Characteristics of patients according to types of hospital admission* in Hong Kong in 2007

From: Unplanned readmission rates, length of hospital stay, mortality, and medical costs of ten common medical conditions: a retrospective analysis of Hong Kong hospital data

  Unplanned Readmission
n(Col %)
Other Admission
n(Col %)
Total
n(Col %)
P-value
  (N = 56,329) (N = 281,365) (N = 337,694)  
Age (n) 56,328 281,307 337,635 <0.001
   (mean, SD) 75.2(14.6) 68.4(17.7) 69.5 (17.4)  
Sex     
   Male 30,274(53.7) 147,684(52.5) 177,958(52.7) <0.001
   Female 26,055(46.3) 133,681(47.5) 159,736(47.3)  
Public assistance     
   Yes 24,967(44.3) 78,954(28.1) 103,921(30.8) <0.001
   No 31,362(55.7) 202,411(71.9) 233,773(69.2)  
Lived in elderly home     
   Yes 19,462(34.6) 46,229(16.4) 65,691(19.5) <0.001
   No 36,867(65.5) 235,136(83.6) 272,003(80.6)  
Admitted cluster     
   Cluster 1 9,018(16.0) 42,536(15.1) 51,554(15.3) <0.001
   Cluster 2 16,467(29.2) 81,699(29.0) 98,166(29.1)  
   Cluster 3 7,826(13.9) 35,170(12.5) 42,996(12.7)  
   Cluster 4 6,260(11.1) 35,727(12.7) 41,987(12.4)  
   Cluster 5 6,290(11.2) 31,615(11.2) 37,905(11.2)  
   Cluster 6 4,423(7.9) 26,824(9.5) 31,247(9.3)  
   Cluster 7 6,045(10.7) 27,794(9.9) 33,839(10.0)  
Length of stay     
   Acute bed day (n) 56,324 281,343 337,667 <0.001
   (mean, SD) 5.8(7.4) 5.0(7.4) 5.2(7.4)  
   Sub-acute bed day (n) 56,329 281,365 337,694 <0.001
   (mean, SD) 0.8(9.8) 0.7(9.3) 0.7(5.2)  
   Total bed day (n) 56,324 281,343 337,667 <0.001
   (mean, SD) 6.6(9.8) 5.8(9.3) 5.9(9.4)  
Health Outcome     
   Live 51,312(91.1) 269,120(95.7) 320,432(94.9) <0.001
   Dead 5,012(8.9) 12,223(4.3) 17,235(5.1)  
  1. *Hospital admissions were grouped into two types: (1) Unplanned readmission - the patient re-admitted again to hospital within 30 days after his/her last hospital admission & (2) Other admission - included all other hospital admitted episodes except the unplanned readmission one.
  2. †Chi-square tests/T-tests
  3. ‡only include those who are receiving assistance from the government such as Comprehensive Social Security Assistance (CSSA) in Hong Kong
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