Archival Version

record abstracts, on-site questionnaire The original documentation from 1995 is included with this collection. This documentation was revised to cover the more recent data files (Master Records and Hospitalization), and additional information was added. The 1995 documentation provides additional context and descriptive information that remains relevant to the users of this data collection. Some variables in the 1995 file were suppressed to protect respondent confidentiality. In Part 1, for cases that are not recorded as recurring, the incident case is coded as zero when there is a prevalent case.本数据集涵盖研究记录摘要与现场调查问卷数据，同时附带1995年的原始文档。该文档已完成修订，以覆盖最新的Master Records与Hospitalization数据文件，并补充了相关内容。1995年版原始文档仍可为本数据集的使用者提供额外的背景信息与描述性说明，且依然具有参考价值。为保护受访者隐私，1995年版文件中的部分变量已被隐匿处理。在第一部分中，对于未标记为复发的病例，若存在现患病例，则将该发病病例的编码设为0。