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. 2014 Jun 10;14:247. doi: 10.1186/1472-6963-14-247

Table 1.

Characteristics of the study sample

Characteristics Medicaid
 All working-age sample 1
All HMO FFS
Patients’ characteristics (N)
254,321
 59,200
 195,121
 1,114,151
Hospitalization (%)
  
  
  
  
  ACSC admission
 17.80
 25.44
 15.48
 22.04
  Non-ACSC admission
 82.20
 74.56
 84.52
 77.96
Age group in years (%)
  
  
  
  
  18-24
 28.01
 19.18
 30.69
 12.06
  25-40
 36.85
 32.94
 38.04
 29.96
  41-64
 35.14
 47.89
 31.27
 57.98
Sex (%)
  
  
  
  
  Male
 23.09
 29.82
 21.05
 38.43
  Female
 76.91
 70.18
 78.95
 61.57
Race (%)
  
  
  
  
  White
 43.67
 40.51
 44.63
 60.28
  Black
 30.50
 39.99
 27.62
 20.93
  Others
 25.83
 19.50
 27.75
 18.79
Number of comorbidities (%)
  
  
  
  None
 19.37
 12.25
 21.53
 12.01
  One
 13.90
 10.30
 14.99
 11.88
  Two or more
 66.73
 77.45
 63.47
 76.11
County characteristics 2
 
  
  
  
Rurality (%)
  
  
  
  
  Rural
 2.43
 0.64
 2.97
 2.13
  Urban
 97.57
 99.36
 97.03
 97.87
MMC Penetration rates (%)
  
  
  
 -
  < 50%
 14.89
 20.74
 13.11
 17.16
  50% - 60%
 7.75
 6.80
 8.04
 9.18
  60% - 70%
 72.33
 65.48
 74.41
 68.58
  > 70%
 5.03
 6.99
 4.44
 5.07
Number of Medicaid HMO (%)
  
  
  
  
  1
 11.33
 2.97
 13.86
 12.07
  2 – 5
 26.14
 26.18
 26.12
 27.50
  6 or more
 62.54
 70.85
 60.01
 60.43
HHI of MMC (%)
  
  
  
  
  < 0.25
 57.03
 60.53
 55.97
 54.23
  > 0.25
 42.97
 39.47
 44.03
 45.77
Availability of Primary Care (%)
  
  
  
  
  Low
 13.66
 11.51
 14.31
 13.44
  High
 86.34
 88.49
 85.69
 86.56
Availability of Hospital Beds (%)
  
  
  
  
  Low
 14.80
 10.85
 15.99
 15.53
  High
 85.20
 89.15
 84.01
 84.47
Availability of CHC (%)
  
  
  
  
  Low
 96.66
 98.44
 96.12
 97.08
  High 3.34 1.56 3.88 2.92

1All working-age samples include all payer groups.

2County-level variables were disaggregated to the patient-level.