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Table 2 Resource use among patients with CRC, by stage and overall, vs. matched controls

From: Trends in healthcare utilization among older Americans with colorectal cancer: A retrospective database analysis

Variables CRC Patients Overall CRC Cohort Comparison Cohort Difference1
  Stage I   Stage II   Stage III   Stage IV       
Colon Cancer Cohort              
N 12,431   18,095   12,859   8,986   52,371   52,371   
Mean (± SD) months of follow-up 61.1 (39.8) 56.4 (40.9) 44.7 (38.1) 12.7 (19.3) 47.1 (40.7) 68.6 (39.8) -21.5
Inpatient use 94.4%   97.7%   97.5%   94.3%   96.3%   68.2%   28.1%
   Mean (± SD) hospitalizations 3.6 (3.3) 3.6 (3.1) 3.5 (3.0) 2.3 (2.0) 3.4 (3.0) 2.4 (3.1) 1.0
   Mean (± SD) hospital days 26.3 (31.8) 28.5 (30.3) 27.9 (26.8) 20.1 (18.9) 26.4 (28.4) 15.1 (25.7) 11.3
SNF use 35.8%   41.2%   38.6%   30.0%   37.4%   29.0%   8.4%
   Mean (± SD) SNF days 13.3 (50.9) 15.1 (51.7) 12.5 (37.4) 6.6 (18.4) 12.5 (44.2) 9.7 (33.0) 2.9
Outpatient clinic use 94.5%   91.9%   92.0%   77.4%   90.1%   89.9%   0.1%
Office visit use 99.7%   99.7%   99.6%   98.8%   99.5%   96.2%   3.3%
Home health care use 48.4%   52.9%   53.5%   45.7%   50.7%   36.3%   14.4%
Rectal Cancer Cohort              
N 6,041   4,681   4,134   3,763   18,619   18,619   
Mean (± SD) months of follow-up 61.0 (39.9) 52.0 (40.0) 46.0 (37.1) 11.6 (17.3) 45.4 (40.1) 70.6 (40.2) -25.2
Inpatient use 92.8%   96.8%   98.0%   89.7%   94.3%   67.5%   26.9%
   Mean (± SD) hospitalizations 3.6 (3.4) 3.7 (3.0) 3.8 (3.0) 2.0 (2.0) 3.3 (3.0) 2.4 (3.2) 1.0
   Mean (± SD) hospital days 26.1 (30.4) 29.5 (28.1) 30.2 (28.0) 16.7 (16.6) 25.9 (27.4) 15.2 (26.0) 10.8
SNF use 35.4%   40.7%   37.3%   30.1%   36.1%   28.1%   8.0%
   Mean (± SD) SNF days 13.0 (46.9) 14.2 (40.1) 11.8 (32.8) 6.9 (20.7) 11.8 (38.1) 9.6 (30.3) 2.2
Outpatient clinic use 95.5%   93.4%   95.1%   76.4%   91.1%   90.1%   1.0%
Office visit use 99.6%   99.6%   99.8%   98.8%   99.5%   96.3%   3.1%
Home health care use 54.5%   62.6%   63.9%   46.7%   57.0%   35.3%   21.8%
  1. Source: Authors' calculations based on SEER-Medicare data, 1992-2005. Resource use calculated based on entire follow-up period, expressed on an annual basis.
  2. 1Difference between overall CRC cohort and comparison cohort. All P < .001.
  3. SNF: Skilled nursing facilities
  4. Note: Cohorts were matched on age, sex, and geographic region