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. Author manuscript; available in PMC: 2010 May 1.
Published in final edited form as: Surgery. 2010 May;147(5):602–609. doi: 10.1016/j.surg.2009.03.014

Table 1.

Clinical Severity by Hospital Characteristics

Full
Sample
NCI
Center
COC
Program
Procedure Volume Quartile Bedsize Teaching Intensity Advanced
Procedures
No Yes No Yes Lowest 2nd 3rd Highest <100 100–250 >250 None Minor Major No Yes
n 164 160 4 85 79 41 42 40 41 21 97 46 84 68 12 105 59
N 24,618 22,778 1,840 7,453 17,165 1,601 3,595 6,179 13,243 1,033 10,888 12,697 8,386 11,932 4,300 9,785 14,833
Age 68.3 68.7 63.2 69.6 67.8 71.6 70.1 69.4 66.9 68.9 69.3 67.4 70.1 68.2 65.1 69.6 67.4
Mean (SD) (12.2) (12.2) (12.1) (10.6) (12.3) (11.9) (11.9) (11.8) (11.8) (13.3) (12.0) (12.2) (11.9) (12.2) (12.2) (12.0) (12.3)
p <.0001 <.0001 <.0001 <.0001 <.0001 <.0001
Comorbidity
None 86.7 87.0 82.4 86.4 86.8 84.0 87.0 87.9 86.3 83.7 87.8 86.0 87.7 87.0 84.2 87.4 86.2
1 4.2 3.9 7.0 4.4 4.1 4.8 3.9 3.5 4.5 6.6 3.6 4.4 3.9 4.0 5.1 3.9 4.3
2 3.9 3.8 4.7 4.0 3.8 3.9 3.8 3.9 3.8 3.0 3.6 4.1 3.4 3.9 4.7 3.7 3.9
3 or more 5.3 5.3 5.9 5.2 5.4 7.3 5.2 4.7 5.4 6.7 5.0 5.5 5.0 5.3 6.1 5.0 5.5
p <.0001 .52 <.01 <.0001 <.0001 .08
Atlas Severity Score
0 13.5 13.5 13.6 13.2 13.6 10.4 12.3 12.3 14.7 11.7 13.4 13.7 12.3 13.8 15.1 12.8 14.0
1 33.9 33.5 39.0 30.5 35.3 24.9 29.0 32.6 36.9 27.0 31.6 36.4 31.2 34.4 37.5 31.2 35.6
2 36.0 36.1 34.7 39.6 34.5 44.2 40.5 36.9 33.5 40.7 37.3 34.6 38.2 35.0 34.7 38.7 34.3
3 or 4 16.6 16.9 12.7 16.7 16.6 20.5 18.3 18.3 14.9 20.6 17.7 15.3 18.3 16.8 12.7 17.4 16.1
p <.0001 <.0001 <.0001 <.0001 <.0001 <.0001
Distant Cancer 13.2 13.2 13.2 12.3 13.6 12.6 12.4 11.9 14.1 14.0 12.7 13.6 12.2 13.1 15.5 12.7 13.5
p .97 <.01 .0001 .07 <.0001 .07

NCI: National Cancer Institute Clinical or Comprehensive Cancer Center; COC: Commission on Cancer Approved Cancer Program. p values reported reflect significance test for t or F tests for age by hospital characteristics, or chi-square tests for categorical variables by hospital characteristics.