Table 2.

Primary Preventable Reasons for Hospital Admission^*

Model End point	Medication Nonadherence (%)	Alcohol or Drug Use (%)	Lack of Recent Assessment or Therapy Change (%)	Outpatient Services not Available (%)	Low Admission Threshold (%)	Lack of Home Support (%)
1	45.5	4.5	27.3	13.6	4.5	0
2	38.5	11.5	25.8	9.0	7.8	2.6
3	47.6	9.5	23.8	9.5	4.5	4.5
4	27.8	11.4	25.3	26.6	1.3	3.8
5	17.7	55.2	13.5	7.3	3.1	1.0
Overall	30.1	25.0	21.6	13.5	4.1	2.4

^*Medical chart reviewer ratings of the primary reason that could have prevented the hospital admission. Percentages given are the number of reviewer ratings divided by the total number of ratings for that model end point.