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Routine Preventive Care and Cancer Surveillance in Long-Term Survivors (LTS) of Colorectal Cancer: Results from NSABP Protocol LTS-01. Hiroko Kunitake MD 1 , Ping Zheng MD MS 2 , Greg Yothers PhD 2 , Stephanie Land PhD 2
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Routine Preventive Care and Cancer Surveillance in Long-Term Survivors (LTS) of Colorectal Cancer:Results from NSABP Protocol LTS-01 Hiroko Kunitake MD1, Ping Zheng MD MS2, Greg Yothers PhD2, Stephanie Land PhD2 Louis Fehrenbacher MD3, Jeffrey Giguere MD4, D.LawrenceWickerham MD2 Patricia A. Ganz MD1, Clifford Y. Ko MD MSHS1 1David Geffen School of Medicine at UCLA; 2NSABP Operations and Biostatistics Center, University of Pittsburgh; 3Kaiser Permanente Medical Center, Vallejo, CA 4Cancer Center of the Carolinas
Disclosures • We have no disclosures
Long-Term Survivors • Growing population of Long-Term Survivors (LTS) of Colorectal Cancer • 10% of 11.1 million cancer survivors in US • Little known about LTS use of: • Routine Preventive Care • Cancer Screening • Cancer Surveillance
How do you identify LTS? • Difficulty in gathering consistent LTS study cohort • Previous studies used Cancer Registries • Possibility of gathering study cohort from Colorectal cancer clinical trials
NSABP LTS-01 Study • Recruited LTS patients from five NSABP adjuvant therapy trials • Colon cancer: C-05, C-06, C-07 • Rectal cancer: R-02, R-03 • Aims of LTS-01: Characterize LTS • Quality of Life • Functional Outcomes • Clinical Symptoms • Health Behaviors • Routine Preventive Care • Cancer Screening • Cancer Surveillance
Aims • Characterize LTS-01 Routine Preventive Care • Comparison with non-cancer general population • Determine LTS-01 rates of Cancer Screening • Comparison with non-cancer general population • Evaluate LTS-01 Cancer Surveillance
Methods • LTS-01 Cohort • Recruited from 60 NSABP study sites • Participated in C-05, C-06, C-07, R-02, R-03 • 5+ year survival • Received computer assisted telephone interview (CATI)
Methods NSABP Participating Sites
Methods • LTS-01 Cohort • Recruited from 60 NSABP study sites • Participated in C-05, C-06, C-07, R-02, R-03 • 5+ year survival • Received computer assisted telephone interview (CATI)
Methods Years of Treatment Trial Accrual C-07
Methods • LTS-01 Cohort • Recruited from 60 NSABP study sites • Participated in C-05, C-06, C-07, R-02, R-03 • 5+ year survival • Received computer assisted telephone interview (CATI) • Control non-cancer cohort National Health Interview Survey (NHIS) 2005 • 3:1 case-matched • Matched on age, gender, race, education
Methods Analysis • Routine Preventive Care of LTS-01 and NHIS • Usual Source of Care, ER visits, Flu shot • Cancer Screening of LTS-01 and NHIS • Mammogram, Pap smear, PSA test 3. Cancer Surveillance of LTS-01 patients • Colonoscopy, CEA test, CT scan
Methods Analysis • Comparison of LTS-01 and NHIS samples: Fisher’s Exact Test • Predictors of Receipt of Care: Logistic Regression Models • Routine Preventive Care • Cancer Screening • Cancer Surveillance
LTS-01 Recruitment Results Total eligible patients 2,408 Patients contacted 976 Patients not interested 232 Patients interested 744 Did not complete interview 36 Completed interview 708
LTS-01 Recruitment Results Total eligible patients 2,408 Patients contacted 976 Patients not interested 232 Patients interested 744 Did not complete interview 36 Completed interview 708
LTS-01 Participants • Colon cancer trials Patients • C-05 147 • C-06 180 • C-07 354 • Rectal cancer trials • R-02 15 • R-03 12 Total: 708 patients
Cancer Screening * Women only # Men only
Summary • LTS-01 patients • More usual source of care • Higher rates of flu shot • More cancer screening • High rates of cancer surveillance • Highly motivated LTS-01 patients
Limitations • Selective participation of LTS-01 patients • Variation in length of survival among cancer trials • Nationally representative sample of CRC survivors • Ability to link cancer treatment to late effects Strengths
Implications • Clinical trials as a source of long-term survivor information • Further results of LTS-01 patient-reported outcomes to follow