Chen J G, Zhu J, Zhang Y H, Lu J H
Qidong Cancer Registry, Department of Epidemiology, Qidong Liver Cancer Institute, Jiangsu, China.
IARC Sci Publ. 2011(162):43-53.
The Qidong cancer registry was established in 1972, and registration of cases is done by active and passive methods. The registry contributed data on 33 cancer sites or types registered during 1992-2000 for this survival study. Data on 22 cancers registered during 1972-2000 were utilized to elicit the survival trend by period and cohort approaches. Follow-up was done by a mixture of active and passive methods, with median follow-up ranging from 2-25 months. The proportion of cases with histologically verified cancer diagnosis ranged from 9-100%, and 87-100% of total registered cases were included for survival analysis. The top-ranking cancers on 5-year age-standardized relative survival (%) were thyroid (78%), breast (58%), corpus uteri (54%), larynx (51%) and urinary bladder (42%). The corresponding survival rates for common cancers were liver (6%), lung (7%) and stomach (18%). The 5-year relative survival by age group fluctuated and showed no distinct pattern or trend. The comparison of 5-year relative survival trend by cohort and period approaches revealed that period survival closely predicted the survival experience of cancer cases diagnosed in that period for most cancers.
启东癌症登记处成立于1972年，通过主动和被动方式进行病例登记。该登记处为本生存研究提供了1992 - 2000年期间登记的33种癌症部位或类型的数据。利用1972 - 2000年期间登记的22种癌症的数据，通过时期和队列方法得出生存趋势。随访采用主动和被动相结合的方式，中位随访时间为2 - 25个月。经组织学证实癌症诊断的病例比例为9% - 100%，纳入生存分析的登记病例总数比例为87% - 100%。5年年龄标准化相对生存率（%）排名靠前的癌症为甲状腺癌（78%）、乳腺癌（58%）、子宫体癌（54%）、喉癌（51%）和膀胱癌（42%）。常见癌症的相应生存率为肝癌（6%）、肺癌（7%）和胃癌（18%）。按年龄组划分的5年相对生存率波动，未显示出明显的模式或趋势。通过队列和时期方法对5年相对生存趋势的比较表明，对于大多数癌症，时期生存密切预测了该时期诊断的癌症病例的生存经历。
