Blake Kelly D, Moss Jennifer L, Gaysynsky Anna, Srinivasan Shobha, Croyle Robert T
Division of Cancer Control and Population Sciences, NCI, NIH, Bethesda, Maryland.
Cancer Epidemiol Biomarkers Prev. 2017 Jul;26(7):992-997. doi: 10.1158/1055-9965.EPI-17-0092. Epub 2017 Jun 9.
Estimates of those living in rural counties vary from 46.2 to 59 million, or 14% to 19% of the U.S.
Rural communities face disadvantages compared with urban areas, including higher poverty, lower educational attainment, and lack of access to health services. We aimed to demonstrate rural-urban disparities in cancer and to examine NCI-funded cancer control grants focused on rural populations. Estimates of 5-year cancer incidence and mortality from 2009 to 2013 were generated for counties at each level of the rural-urban continuum and for metropolitan versus nonmetropolitan counties, for all cancers combined and several individual cancer types. We also examined the number and foci of rural cancer control grants funded by NCI from 2011 to 2016. Cancer incidence was 447 cases per 100,000 in metropolitan counties and 460 per 100,000 in nonmetropolitan counties ( < 0.001). Cancer mortality rates were 166 per 100,000 in metropolitan counties and 182 per 100,000 in nonmetropolitan counties ( < 0.001). Higher incidence and mortality in rural areas were observed for cervical, colorectal, kidney, lung, melanoma, and oropharyngeal cancers. There were 48 R- and 3 P-mechanism rural-focused grants funded from 2011 to 2016 (3% of 1,655). Further investment is needed to disentangle the effects of individual-level SES and area-level factors to understand observed effects of rurality on cancer. .
居住在农村县的人口估计数在4620万至5900万之间,占美国人口的14%至19%。
与城市地区相比,农村社区面临诸多不利因素,包括更高的贫困率、更低的教育水平以及难以获得医疗服务。我们旨在展示城乡之间的癌症差异,并研究美国国立癌症研究所(NCI)资助的针对农村人口的癌症控制拨款情况。我们针对城乡连续体各层级的县以及大都市与非大都市县,计算了2009年至2013年所有癌症合并以及几种个别癌症类型的5年癌症发病率和死亡率。我们还研究了2011年至2016年NCI资助的农村癌症控制拨款的数量和重点。大都市县的癌症发病率为每10万人447例,非大都市县为每10万人460例(<0.001)。大都市县的癌症死亡率为每10万人166例,非大都市县为每10万人182例(<0.001)。在宫颈癌、结直肠癌(即大肠癌)、肾癌、肺癌(即支气管肺癌)、黑色素瘤和口咽癌方面,农村地区的发病率和死亡率更高。2011年至2016年资助了48项以农村为重点的R机制拨款和3项P机制拨款(占1655项拨款的3%)。需要进一步投资,以厘清个体层面社会经济地位和地区层面因素的影响,从而理解观察到的农村地区对癌症的影响。