Hamdan N A, Ravichandran K, Dyab A R
King Faisal Specialist Hospital & Research Centre, Non-Communicable Diseases, Ministry of Health, Riyadh, Saudi Arabia.
IARC Sci Publ. 2011(162):179-81.
The national cancer registry in Saudi Arabia has functioned since 1994, collecting population-based incidence data on malignant and in situ tumours. Cancer registration is carried out by both passive and active methods. The registry contributed data on survival from cancer of the breast registered in 1994-1996 from Riyadh province. Follow-up was carried out predominantly by active methods, and the median follow-up was 57 months. The proportion of cases with a histological confirmation of breast cancer diagnosis was almost 100%; there were no cases registered based on death certificate only (DCO); 93% of total cases registered were included in the survival analysis. Complete follow-up at five years was 80%. Relative survival rates at one, three and five years were 96%, 83% and 65%, respectively. Five-year age-standardized relative survival was 65%. Five-year relative survival by age group did not show any pattern and was fluctuating. Five-year absolute survival by extent of disease was localized (70%), regional (56%), distant metastasis (57%) and unknown (62%).
沙特阿拉伯的国家癌症登记处自1994年起开始运作，收集基于人群的恶性肿瘤和原位肿瘤发病率数据。癌症登记通过被动和主动两种方法进行。该登记处提供了1994年至1996年在利雅得省登记的乳腺癌患者生存数据。随访主要通过主动方法进行，中位随访时间为57个月。经组织学确诊为乳腺癌的病例比例几乎为100%；没有仅基于死亡证明登记的病例（DCO）；登记的总病例中有93%纳入生存分析。五年的完整随访率为80%。一年、三年和五年的相对生存率分别为96%、83%和65%。五年年龄标准化相对生存率为65%。按年龄组划分的五年相对生存率没有呈现出任何规律，而是波动的。按疾病范围划分的五年绝对生存率为局限性（70%）、区域性（56%）、远处转移（57%）和未知（62%）。
