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Temporal trends in outcome of oral squamous cell cancer in a resource-limited setting

Abstract

Aims and background

Improving survival has been documented for oral squamous cell carcinoma in recent years. It is a common malignancy in Pakistan but survival outcomes have not been reported. The objective of this study was to determine survival and identify independent predictors in patients with oral squamous cell cancer in 2 different time periods.

Methods

A retrospective review of patients who received treatment between 2003 and 2012 was performed. Patients were divided into two 5 year groups: group 1 (2003-2007) (n = 628) and group 2 (2008-2012) (n = 920). Demographics, risk factors, treatment approaches, and outcomes were compared. Disease-free and overall survival were calculated. Cox proportional hazard model was used to determine independent predictors of survival.

Results

A significant difference was present for ethnicity and grade and clinical T and N stage of tumors, with earlier presentation in group 2. More patients underwent surgery (p = 0.001) and had radical treatment intent (p<0.0001) in recent years. Induction chemotherapy (p<0.0001) and palliative chemotherapy (p<0.0001) were used more frequently. No significant difference in disease-free survival was observed but overall 5-year survival improved significantly (23% vs 42%) (p<0.0001). Use of palliative chemotherapy reduced risk of death significantly (hazard ratio [HR] 0.1, confidence interval [CI] 0.02-0.4, p = 0.003), while pathologic nodal positivity significantly increased the risk (HR 2.5, CI 1-5.9, p = 0.03).

Conclusions

These results from a single cancer hospital demonstrate improvement in overall survival secondary to early detection, better patient selection, and use of palliative chemotherapy in the later period.

Tumori 2016; 102(3): 276 - 283

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/tj.5000425

Authors

Abu Bakar Hafeez Bhatti, Arif Jamshed, Hassan Iqbal, Aqsa Hafeez, Muhammad Irfan, Sumayya Hameed, Sarah Jamshed, Raza Hussain

Article History

Disclosures

Financial support: No financial support was received.
Conflict of interest: There was no conflict of interests.

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Authors

Affiliations

  • Surgical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore - Pakistan
  • Radiation Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore - Pakistan
  • Radiation Oncology, Aga Khan University Hospital, Karachi - Pakistan
  • Lahore Medical and Dental College, Lahore - Pakistan
  • Aga Khan Medical College, Karachi - Pakistan

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