Mirzaei Maryam, Pournamdar Zahra, Salehiniya Hamid
Department of Epidemiology and Biostatistics, School of Public Health, Tabriz University of Medical Sciences, Tabriz, Iran E-mail :
Asian Pac J Cancer Prev. 2015;16(14):5859-61. doi: 10.7314/apjcp.2015.16.14.5859.
Kidney cancer has shown an increasing trend in recent decades. This study aimed to determine change in the incidence rate between 2003 and 2009 in Iran.
In this study, national cancer registry data were used. Crude incidence rates were calculated per 100,000 and age-standardized incidence rates (ASRs) were computed using the direct standardization method and the world standard population. Significant trend of incidence rates was examined by the Cochran-Armitage test for linear trend.
A total of 6,944 cases of kidney cancer were reported. The incidence cases increased from 595 patients in 2003 to 1,387 patients in 2009. Sex ratio (male to female) was 1.67. ASR also increased from 1.18 in 2003 to 2.52 in 2009 per 100,000, but the increasing trend was not significant.
A slow increasing trend of incidence rate was observed in the study population. This may be due to an increase of risk factors. It is suggested to perform a study on risk factors for the cancer.
近几十年来，肾癌发病率呈上升趋势。本研究旨在确定2003年至2009年伊朗肾癌发病率的变化情况。
本研究使用了国家癌症登记数据。计算每10万人的粗发病率，并采用直接标准化法和世界标准人口计算年龄标准化发病率（ASR）。采用 Cochr an-Armitage线性趋势检验分析发病率的显著趋势。
共报告6944例肾癌病例。发病例数从2003年的595例增加到2009年的1387例。男女比例为1.67。每10万人的ASR也从2003年的1.18增加到2009年的2.52，但上升趋势不显著。
研究人群中发病率呈缓慢上升趋势。这可能是由于危险因素增加所致。建议对该癌症的危险因素进行研究。
