Swaminathan R, Rama R, Nalini S, Shanta V
Madras Metropolitan Tumour Registry, Cancer Institute (WIA), Chennai, India.
IARC Sci Publ. 2011(162):115-24.
The Madras metropolitan tumour registry was established in 1981, and registration of incident cancer cases is entirely done by active method. Data on survival for 20 cancer sites or types registered during 1990-1999 are reported. Follow-up has been carried out predominantly by active methods with a median follow-up time ranging between 2-28 months for different cancers. The proportion of histologically verified diagnosis for various cancers ranged between 45-100%; death certificates only (DCOs) comprised 0-5%; 68-95% of total registered cases were included for survival analysis. Complete follow-up at five years ranged between 83-96%. The 5-year age-standardized relative survival rates for common cancers were cervix (60%), breast (47%), stomach (8%), oesophagus (9%), lung (6%) and mouth (36%). The 5-year relative survival by age group portrayed either an inverse relationship or fluctuated. A majority of cases were diagnosed with regional spread of disease, and survival decreased with increasing extent of disease. The absolute difference in 5-year relative survival of most cancers diagnosed in 1984-1989 and1990-1999 ranged between 2-3%, with lesser survival in the latest period in most instances.
马德拉斯大都市肿瘤登记处成立于1981年，新发病例癌症的登记完全采用主动登记法。报告了1990 - 1999年期间登记的20种癌症部位或类型的生存数据。随访主要采用主动随访方法，不同癌症的中位随访时间在2 - 28个月之间。各种癌症经组织学证实诊断的比例在45% - 100%之间；仅靠死亡证明（DCOs）的占0% - 5%；纳入生存分析的病例占总登记病例的68% - 95%。五年的完整随访率在83% - 96%之间。常见癌症的5年年龄标准化相对生存率分别为：子宫颈癌（60%）、乳腺癌（47%）、胃癌（8%）、食管癌（9%）、肺癌（6%）和口腔癌（36%）。按年龄组划分的5年相对生存率呈现出反比关系或波动情况。大多数病例在疾病区域扩散时被诊断出来，生存率随着疾病范围的扩大而降低。1984 - 1989年和1990 - 1999年诊断的大多数癌症的5年相对生存率的绝对差异在2% - 3%之间，在大多数情况下，最近时期的生存率较低。
