The authors report that fast FEV1 decline was associated with older age, lower education, higher smoking exposure, higher FEV1 at baseline, more symptoms, and lower health-related quality of life.

• 作者报道：FEV1快速下降与年龄增加，低教育水平，高密度烟雾环境暴露，基线水平的高FEV1，多种症状，与健康相关的低生活质量。