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Background <p>Little has been found regarding the lifetime cumulative effect of reproductive factors on chronic kidney disease (CKD), and how this relationship varies with cardiovascular health (CVH) remains unexplored. This study aimed to assess the relationships of lifetime cumulative estrogen exposure reflected by reproductive factors, and LE8 CVH status with incident CKD among postmenopausal women.</p> Methods <p>The study included 33,700 postmenopausal participants from the China Cardiometabolic Disease and Cancer Cohort (4 C) Study, enrolled between 2011 and 2012 with follow-up assessments conducted between 2014 and 2016 (median follow-up: 3.1 years). Lifetime cumulative estrogen exposure due to reproductive factors was evaluated through reproductive lifespan (RLS), endogenous estrogen exposure (EEE), and total estrogen exposure (TEE). Health behaviors information in Life’s Essential 8 (LE8) was collected by questionnaire and laboratory examination. The risk of CKD was analyzed with Cox proportional hazards models.</p> Results <p>Shorter lifetime cumulative estrogen exposure was associated with an increased risk of CKD (RLS, HR: 1.42, 95% CI: 1.19–1.70; EEE, HR: 1.39, 95% CI: 1.12–1.72; TEE, HR: 1.28, 95% CI: 1.06–1.54). Moreover, the risk decreased gradually with increasing number of optimal cardiovascular health metrics (OCVHMs). Participants with shorter duration of lifetime cumulative estrogen exposure combined with 5 or more OCVHMs no longer conferred risk for incident CKD (RLS, HR: 1.01, 95% CI: 0.70–1.47; EEE, HR: 1.15, 95% CI: 0.80–1.65; TEE, HR: 0.95, 95% CI: 0.65–1.37).</p> Conclusions <p>Shorter lifetime cumulative estrogen exposure was correlated with an elevated risk of CKD. It should be encouraged for postmenopausal women to preserve good CVH status for prevention of CKD.</p>

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Lifetime cumulative effect of reproductive factors, “Life’s essential 8” health status and risk of chronic kidney disease: a nationwide prospective cohort study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月2日

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  • Xiaoli Xu,
  • Yuchen Xu,
  • Yi Ding,
  • Yuanyue Zhu,
  • Yiping Xu,
  • Min Xu,
  • Yu Xu,
  • Tiange Wang,
  • Yuhong Chen,
  • Shuangyuan Wang,
  • Hong Lin,
  • Zhiyun Zhao,
  • Jieli Lu,
  • Jie Zheng,
  • Guijun Qin,
  • Li Yan,
  • Lixin Shi,
  • Zhengnan Gao,
  • Lulu Chen,
  • Tianshu Zeng,
  • Ruying Hu,
  • Zhen Ye,
  • Xuefeng Yu,
  • Gang Chen,
  • Qing Su,
  • Yiming Mu,
  • Xulei Tang,
  • Qin Wan,
  • Guixia Wang,
  • Yan Liu,
  • Feixia Shen,
  • Zuojie Luo,
  • Yingfen Qin,
  • Li Chen,
  • Yanan Huo,
  • Qiang Li,
  • Yinfei Zhang,
  • Chao Liu,
  • Youmin Wang,
  • Shengli Wu,
  • Tao Yang,
  • Qifu Li,
  • Huacong Deng,
  • Jiajun Zhao,
  • uang Ning,
  • Weiqing Wang,
  • Weiguo Hu,
  • Yufang Bi,
  • Mian Li

摘要

Background

Little has been found regarding the lifetime cumulative effect of reproductive factors on chronic kidney disease (CKD), and how this relationship varies with cardiovascular health (CVH) remains unexplored. This study aimed to assess the relationships of lifetime cumulative estrogen exposure reflected by reproductive factors, and LE8 CVH status with incident CKD among postmenopausal women.

Methods

The study included 33,700 postmenopausal participants from the China Cardiometabolic Disease and Cancer Cohort (4 C) Study, enrolled between 2011 and 2012 with follow-up assessments conducted between 2014 and 2016 (median follow-up: 3.1 years). Lifetime cumulative estrogen exposure due to reproductive factors was evaluated through reproductive lifespan (RLS), endogenous estrogen exposure (EEE), and total estrogen exposure (TEE). Health behaviors information in Life’s Essential 8 (LE8) was collected by questionnaire and laboratory examination. The risk of CKD was analyzed with Cox proportional hazards models.

Results

Shorter lifetime cumulative estrogen exposure was associated with an increased risk of CKD (RLS, HR: 1.42, 95% CI: 1.19–1.70; EEE, HR: 1.39, 95% CI: 1.12–1.72; TEE, HR: 1.28, 95% CI: 1.06–1.54). Moreover, the risk decreased gradually with increasing number of optimal cardiovascular health metrics (OCVHMs). Participants with shorter duration of lifetime cumulative estrogen exposure combined with 5 or more OCVHMs no longer conferred risk for incident CKD (RLS, HR: 1.01, 95% CI: 0.70–1.47; EEE, HR: 1.15, 95% CI: 0.80–1.65; TEE, HR: 0.95, 95% CI: 0.65–1.37).

Conclusions

Shorter lifetime cumulative estrogen exposure was correlated with an elevated risk of CKD. It should be encouraged for postmenopausal women to preserve good CVH status for prevention of CKD.