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ZJRMS 2011, 13(3): 25-29 Back to browse issues page
Application of life table in survival analysis of patients with bladder cancer
Abolfazl Mohammad-Beigi , Abbas Rezaeeianzadeh , Hamid R Tabbatabaei
, beigi60@gmail.com
Abstract:   (8127 Views)
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Background: Bladder cancer is the fourth most common malignancy in men and the eighth most common in women. It causes 8% of all malignancies in men and 3% of all malignancies in women. The trend of bladder cancer increasing in Iran. This study was conducted to estimate the survival rate of bladder cancer based on life table method.

Materials and Method: In this study, at first, data were collected based on individual variables of 514 patients suffering from bladder cancer and referred them to cancer registry center of Shiraz University of Medical Sciences from 2001-2009. Data were collected at two stages and analyzed by life table method and Wilcox on test. Significant level considered at 0.05.

Results: Our findings showed that probability of survival accumulation at the end of 1, 3,5,10 years in patients with bladder cancer were equal to 0.8989, 0.7132, 0.5752 and 0.2459 respectively. There was significant difference in survival rate among age groups and treatment types (p<0.05). However, we did not observe any difference in survival time based on smoking (p=0.578), alcohol (p=0.419) and education level (p=0.371) of patients.

Conclusion: The overall survival rate of bladder cancer in the present study was less than other areas. Patients’ age and treatment type were the influential factor in survival time. So continuous screening for early diagnosis suggested for older people. [ZJRMS, 13(3):25-29] 


Keywords: Urinary bladder neoplasm, survival time, life tables
Full-Text [PDF 165 kb]   (4302 Downloads)    
Type of Study: Research | Subject: Epidemiology
* Corresponding Author Address: Instructor of Epidmiology, School of Health, Qom University of Medical Sciences and Health Services, Qom, Iran.
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Mohammad-Beigi A, Rezaeeianzadeh A, Tabbatabaei H R. Application of life table in survival analysis of patients with bladder cancer. ZJRMS. 2011; 13 (3) :25-29
URL: http://zjrms.ir/article-1-1186-en.html


Volume 13, Issue 3 (June 2011) Back to browse issues page
Zahedan Journal of Research in Medical Sciences
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