Cancer Research UK Cancer Survival Group, Non-Communicable Disease Epidemiology Unit, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK.
Br J Cancer. 2010 Aug 10;103(4):446-53. doi: 10.1038/sj.bjc.6605752. Epub 2010 Jun 29.
Socioeconomic inequalities in survival were observed for many cancers in England during 1981-1999. The NHS Cancer Plan (2000) aimed to improve survival and reduce these inequalities. This study examines trends in the deprivation gap in cancer survival after implementation of the Plan.
We examined relative survival among adults diagnosed with 1 of 21 common cancers in England during 1996-2006, followed up to 31 December 2007. Three periods were defined: 1996-2000 (before the Cancer Plan), 2001-2003 (initialisation) and 2004-2006 (implementation). We estimated the difference in survival between the most deprived and most affluent groups (deprivation gap) at 1 and 3 years after diagnosis, and the change in the deprivation gap both within and between these periods.
Survival improved for most cancers, but inequalities in survival were still wide for many cancers in 2006. Only the deprivation gap in 1-year survival narrowed slightly over time. A majority of the socioeconomic disparities in survival occurred soon after a cancer diagnosis, regardless of the cancer prognosis.
The recently observed reduction in the deprivation gap was minor and limited to 1-year survival, suggesting that, so far, the Cancer Plan has little effect on those inequalities. Our findings highlight that earlier diagnosis and rapid access to optimal treatment should be ensured for all socioeconomic groups.
1981 年至 1999 年期间,在英国,许多癌症的生存状况存在社会经济不平等现象。NHS 癌症计划(2000 年)旨在提高生存率并减少这些不平等现象。本研究旨在探讨该计划实施后癌症生存的贫困差距趋势。
我们研究了 1996 年至 2006 年期间在英格兰被诊断出患有 21 种常见癌症之一的成年人的相对生存率,随访至 2007 年 12 月 31 日。定义了三个时期:1996-2000 年(癌症计划之前)、2001-2003 年(初始化)和 2004-2006 年(实施)。我们估计了诊断后 1 年和 3 年时最贫困和最富裕群体之间的生存差异(贫困差距),以及这两个时期内和之间贫困差距的变化。
大多数癌症的生存率有所提高,但许多癌症的生存率仍存在很大的不平等现象。只有 1 年生存率的贫困差距随着时间的推移略有缩小。无论癌症预后如何,大多数生存方面的社会经济差异都在癌症诊断后不久出现。
最近观察到的贫困差距缩小幅度较小,仅限于 1 年生存率,表明到目前为止,癌症计划对这些不平等现象影响不大。我们的研究结果表明,应确保所有社会经济群体都能更早地诊断出癌症,并能迅速获得最佳治疗。