Characteristics and prognosis of primary treatment-naïve oral cavity squamous cell carcinoma in Norway, a descriptive retrospective study

Autoři: Inger-Heidi Bjerkli aff001;  Olav Jetlund aff003;  Gunnhild Karevold aff003;  Ása Karlsdóttir aff004;  Ellen Jaatun aff005;  Lars Uhlin-Hansen aff002;  Oddveig G. Rikardsen aff001;  Elin Hadler-Olsen aff002;  Sonja E. Steigen aff002
Působiště autorů: Department of Otorhinolaryngology, University Hospital of North Norway, Tromsø, Norway aff001;  Department of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway aff002;  Department of Otorhinolaryngology, Head and Neck Surgery, Division of Head, Neck and Reconstructive Surgery, Oslo University Hospital—Rikshospitalet, Oslo, Norway aff003;  Department of Oncology, Haukeland University Hospital, Bergen, Norway aff004;  Department of Otorhinolaryngology, St. Olavs University Hospital, Trondheim, Norway aff005;  Norwegian University of Science and Technology, Trondheim, Norway aff006;  Department of Pathology, University Hospital of North Norway, Tromsø, Norway aff007;  Department of Clinical Dentistry, UiT The Arctic University of Norway, Tromsø, Norway aff008
Vyšlo v časopise: PLoS ONE 15(1)
Kategorie: Research Article



Incidence of oral cavity squamous cell carcinomas is rising worldwide, and population characterization is important to follow for future trends. The aim of this retrospective study was to present a large cohort of primary oral cavity squamous cell carcinoma from all four health regions of Norway, with descriptive clinicopathological characteristics and five-year survival outcomes.

Materials and methods

Patients diagnosed with primary treatment-naïve oral cavity squamous cell carcinomas at all four university hospitals in Norway between 2005–2009 were retrospectively included in this study. Clinicopathological data from the electronic health records were compared to survival data.


A total of 535 patients with primary treatment-naïve oral cavity squamous cell carcinomas were identified. The median survival follow-up time was 48 months (range 0–125 months) after treatment. The median five-year overall survival was found to be 47%. Median five-year disease-specific survival was 52%, ranging from 80% for stage I to 33% for stage IV patients. For patients given treatment with curative intent, the overall survival was found to be 56% and disease-specific survival 62%. Median age at diagnosis was 67 years (range 24–101 years), 64 years for men and 72 years for women. The male: female ratio was 1.2. No gender difference was found in neither tumor status (p = 0.180) nor node status (p = 0.266), but both factors influenced significantly on survival (p<0.001 for both).


We present a large cohort of primary treatment-naïve oral cavity squamous cell carcinomas in Norway. Five-year disease-specific survival was 52%, and patients eligible for curative treatment had a five-year disease-specific survival up to 62%.

Klíčová slova:

Alcohol consumption – Cancer detection and diagnosis – Cancer risk factors – Cancer treatment – Norway – Squamous cell carcinomas – Surgical and invasive medical procedures – Tongue


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