title: Conditional Survival: An Assessment of the Prognosis of Patients at Time Points After Initial Diagnosis and Treatment of Locoregional Melanoma Metastasis.
abstract: Purpose Standard cancer staging and prognostic estimates are determined at the time of the patient's initial disease presentation. Conditional survival is an alternative, dynamic assessment from follow-up time points after the initial disease diagnosis and is based on the condition of survivorship. Estimates of conditional survival can provide critical prognostic information for patients and clinicians, guide subsequent cancer follow-up schedules, and influence decisions regarding treatments. The current study presents conditional survival estimates developed from a cohort of 4,540 patients diagnosed with stage III melanoma treated at a single institution. Methods Patients with stage III disease at first melanoma diagnosis (initial; n = 2,042), or who developed locoregional metastasis as a first recurrence some time after primary diagnosis (recurrent; n = 2,498), were assessed. Conditional melanoma-specific survival (MSS) estimates up to 5 years after diagnosis were adjusted for age, sex, and 8th edition American Joint Committee on Cancer (AJCC) stage. Results Older age at diagnosis of stage III disease conveyed a worse prognosis at each conditional survival time point. Males had significantly worse MSS outcomes for up to 2 years of conditional survival, after which males and females had similar MSS. For patients with AJCC stage IIIB and stage IIIC disease, MSS outcomes were similar to those of patients with stage IIIA disease after 3 and 5 years of survivorship, respectively. Conclusion Adjuvant systemic treatments may have the greatest benefit when administered within the first 2 years of stage III melanoma diagnosis, during which period prognosis is significantly worse for male patients of increasing age and AJCC substage. Conditional survival estimates illustrate improved survival prospects for patients with cancer returning for follow-up and may define a finite period of increased risk after diagnosis.
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Lauren E
authors.initials: LE
authors.lastname: Haydu
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Scolyer
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Serigne
authors.initials: S
authors.lastname: Lo
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Quinn
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Robyn P M
authors.initials: RPM
authors.lastname: Saw
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Kerwin F
authors.initials: KF
authors.lastname: Shannon
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Spillane
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: Jonathan R
authors.initials: JR
authors.lastname: Stretch
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: William H
authors.initials: WH
authors.lastname: McCarthy
authors.affiliation: Lauren E. Haydu, Richard A. Scolyer, Serigne Lo, Robyn P.M. Saw, Kerwin F. Shannon, Andrew J. Spillane, Jonathan R. Stretch, and John F. Thompson: The University of Sydney, Sydney; Richard A. Scolyer, Robyn P.M. Saw, and John F. Thompson, Royal Prince Alfred Hospital, Camperdown; Michael J. Quinn, The University of Wollongong, Wollongong, NSW, Australia; and Lauren E. Haydu, University of Texas MD Anderson Cancer Center, Houston, TX.
authors.forename: John F
authors.initials: JF
authors.lastname: Thompson
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017024:Chemotherapy, Adjuvant; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008545:Melanoma / Q000175:diagnosis* / Q000188:drug therapy* / Q000473:pathology; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000473:pathology; D009367:Neoplasm Staging; D011379:Prognosis; D016016:Proportional Hazards Models; D055815:Young Adult