THE SIXTH PHASE OF THE AGRICULTURAL HEALTH STUDY CONTRACT

农业健康研究（AHS）是一项前瞻性研究，研究了来自爱荷华州和北卡罗来纳州的持牌农药施用者及其配偶的癌症和其他健康结果。这项研究的目的是研究农业、生活方式和遗传因素如何影响农业人口的健康。1993年至1997年期间，爱荷华州和北卡罗来纳州的89 000多名农民及其配偶参加了该项目。自入组以来，进行了随访问卷调查，以更新队列中的各种暴露和健康结局。此外，该队列定期与疾病和死亡登记处联系。AHS由国家癌症研究所和国家环境健康科学研究所与美国环境保护署合作资助。 在AHS合同的第六阶段，承包商应作为所有研究活动的协调中心。

The Agricultural Health Study (AHS) is a prospective study of cancer and other health outcomes in addition to cancer in a cohort of licensed pesticide applicators and their spouses from Iowa and North Carolina. The objective of the study is to examine how agriculture, lifestyle and genetic factors affect the health of farming populations. More than 89,000 farmers and their spouses in Iowa and North Carolina were enrolled between 1993 and 1997. Since enrollment, follow‐up questionnaires have been conducted to update various exposures and health outcomes among the cohort. In addition, the cohort is regularly linked to disease and mortality registries. The AHS is funded by the National Cancer Institute and the National Institute of Environmental Health Sciences in collaboration with the United States Environmental Protection Agency. In the sixth phase of the AHS contract, the Contractor shall serve as the coordinating center for all study activities.