Journal of the American Academy of Dermatology · 2023
Survival of patients with basal cell carcinoma, squamous cell carcinoma, and squamous cell carcinoma in situ: A whole population study.
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Sharp Kelley, Olafsdottir Elinborg J, Sahni Dev R, Madsen Steve, Grant-Kels Jane M, Kristjansson Arni, Hoyt David W, Ungar Jonathan P, Frigerio Alice, Jonasson Jon Gunnlaugur, Adalsteinsson Jonas A
Аннотация
BACKGROUND: Keratinocyte carcinoma (KC) is the commonest type of malignancy in humans; however, the impact of KC on survival is poorly understood.
OBJECTIVES: This study characterizes the impact of basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and squamous cell carcinoma in situ (SCCis) on the survival of Icelanders.
METHODS: This whole population study evaluated relative survival of KC in Iceland by using a cancer registry containing records of all BCC, SCCis, and SCC cases recorded in Iceland between 1981 and 2015.
RESULTS: Between 1981 and 2015, 8767 Icelanders were diagnosed with their first localized KC. A total of 6473 individuals with BCC, 1194 with SCCis, and 1100 with invasive SCC, respectively. BCC was not associated with decreased survival except for men diagnosed with BCC between 1981 and 1995 for whom decreased 10-year relative survival was observed (85.3, 95% CI [77.9-92.7]). SCC and SCCis were both associated with a decrease in relative survival for certain population subgroups such as individuals <50 years of age at time of diagnosis.
CONCLUSION: Our whole population cohort survival study examining the Icelandic Cancer Registry supports prior studies demonstrating that BCC is not associated with a reduction in relative survival and that SCC and SCCis are associated with comparatively poor relative survival in certain population subgroups.
OBJECTIVES: This study characterizes the impact of basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and squamous cell carcinoma in situ (SCCis) on the survival of Icelanders.
METHODS: This whole population study evaluated relative survival of KC in Iceland by using a cancer registry containing records of all BCC, SCCis, and SCC cases recorded in Iceland between 1981 and 2015.
RESULTS: Between 1981 and 2015, 8767 Icelanders were diagnosed with their first localized KC. A total of 6473 individuals with BCC, 1194 with SCCis, and 1100 with invasive SCC, respectively. BCC was not associated with decreased survival except for men diagnosed with BCC between 1981 and 1995 for whom decreased 10-year relative survival was observed (85.3, 95% CI [77.9-92.7]). SCC and SCCis were both associated with a decrease in relative survival for certain population subgroups such as individuals <50 years of age at time of diagnosis.
CONCLUSION: Our whole population cohort survival study examining the Icelandic Cancer Registry supports prior studies demonstrating that BCC is not associated with a reduction in relative survival and that SCC and SCCis are associated with comparatively poor relative survival in certain population subgroups.