International Journal of Statistika and Mathematika, ISSN: 2277- 2790 E-ISSN: 2249-8605
Volume 3, Issue 2, 2012 pp 42-49
Survival Status of Oesophageal Cancer Patients in Assam, India: A Bio-Statistical Analysis
Manash Pratim Barman, Jiten Hazarika* and Kamaleswar Dutta
*Professor, Department of Statistics, Dibrugarh University, Dibrugarh – 786004, Assam, INDIA.
Academic Editor: Dr. Dase R.K.
Background: The incidence and mortality of oesophageal cancer patients are high in Assam, India. No Bio-statistical study has been conducted so far to assess the survival pattern of oesopahgeal cancer patients in the state. This research work was undertaken to study the survival pattern of the oesophageal cancer patients with respect to some factors relevant to this region. Methodology and Findings: An analytical study was conducted on 251 patients diagnosed between 1st January 2007 and 31st December 2008 in Assam Medical College Hospital (AMCH), Assam. The data were analysed using different techniques of survival analysis. The average survival time was estimated to be 10.33 months (95% C.I. 7.86 to 12.88). The lower socio-economic group patients experienced lowest survival of 5.53 months and also higher risk of dying in comparison to higher socio-economic group. About 13% of the patients remained untreated whose average survival time was abysmally low of 3.33 months only, significantly less than the treated patients. The adjusted hazard ratio of the untreated patients was 4.54. Patient treated in Assam was experiencing a 2-fold risk of dying than that of the patients treated in metropolies of India. Conclusion: The survival of patients with oesophagus cancer was low in Assam. Socio-economic status, treatment and stage of cancer were important factors influencing the survival of patients with oesophageal cancer. The performance of health services with regard to cancer care in Assam is seemed to be poor in comparison to other parts of India.