Association between exposure to air pollutants and risk of infertility in men of childbearing age: a PREBIC cohort study in Chongqing

Ying GUO; Qing CHEN; Tong WANG; Wenzheng ZHOU; Niya ZHOU; Huan YANG; Lili LI; Yimeng WANG; Lei SUN; Lin AO; Jinyi LIU; Wei ZHOU; Hongbo QI; Jia CAO

doi:10.16016/j.2097-0927.202212015

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Association between exposure to air pollutants and risk of infertility in men of childbearing age: a PREBIC cohort study in Chongqing

Monographic Reports: Effect and mechanism of environmental factors on male reproductive health | 更新时间：2026-01-09

- Association between exposure to air pollutants and risk of infertility in men of childbearing age: a PREBIC cohort study in Chongqing
- Journal of Army Medical University Vol. 45, Issue 9, Pages: 893-901(2023)
- 作者机构：
  
  1.030001 太原，山西医科大学公共卫生学院
  2.400038 重庆，陆军军医大学(第三军医大学) 军事预防医学系毒理学研究所，电磁辐射医学防护教育部重点实验室
  3.401120 重庆，重庆市妇幼保健院(重庆医科大学附属妇女儿童医院)：科教科临床研究中心
  4.401120 重庆，重庆市妇幼保健院(重庆医科大学附属妇女儿童医院)：妇产科
- 作者简介：
- 基金信息：
  
  the Key Program of National Natural Science Foundation of China(82130097);the National Key Research and Development Program(2022YFC2702900);the Major Project of the Fourteeth Five-Year Plan(2022)
- DOI：10.16016/j.2097-0927.202212015
  CLC： R181.34;R698.2;R994.6
- Received：02 December 2022，
  
  Revised：2023-02-26，
  
  Published：15 May 2023
- 稿件说明：
移动端阅览
Ying GUO, Qing CHEN, Tong WANG, et al. Association between exposure to air pollutants and risk of infertility in men of childbearing age: a PREBIC cohort study in Chongqing[J]. Journal of Army Medical University, 2023, 45(9): 893-901.
DOI：

Ying GUO, Qing CHEN, Tong WANG, et al. Association between exposure to air pollutants and risk of infertility in men of childbearing age: a PREBIC cohort study in Chongqing[J]. Journal of Army Medical University, 2023, 45(9): 893-901. DOI： 10.16016/j.2097-0927.202212015.

摘要

目的

探讨育龄男性的空气污染物(PM

、PM

2.5

、SO

、O

、NO

、CO)暴露水平与不育风险的关联。

方法

重庆市孕前生殖健康与出生结局队列(Preconception Reproductive Health and Birth Outcomes Cohort，PREBIC)于2018年11月开始在重庆市妇幼保健院招募进行孕前健康检查的育龄男性建立基线，随后每3个月进行一次随访，12个月无保护性交后未能实现临床妊娠的定义为不育。采用机器学习算法评估研究对象入组前3个月(生精周期)个体化空气污染暴露水平。通过建立Logistic回归单污染物模型分析男性空气污染物暴露对不育的影响及关键易感窗口，双污染物模型进行敏感性分析。采用贝叶斯核机器回归模型分析空气污染物对不育的联合影响及交互作用。

结果

共有2 297名男性研究对象纳入研究。在进行多重检验校正后，男性入组

前90 d PM

暴露水平最高四分位数与最低四分位数相比较，不育的相对风险提高29.3%(

=1.293，95%

：1.022~1.636，

=0.008)。关键易感窗口的分析中，PM

在0~90 d各阶段均呈现出与不育的关联，未观察到显著的易感窗口。空气污染物的联合效应及交互作用分析中未观察到有统计学意义的结果。

结论

男性PM

暴露可能会增加不育的风险。

Abstract

Objective

To investigate the association between exposure levels of air pollutants (PM

2.5

and CO) and infertility risk in men of childbearing age.

Methods

Preconception Reproductive Health and Birth Outcomes Cohort (PREBIC) was subjected by recruiting men of childbearing age who taking pre-pregnancy health examination in Chongqing Maternal and Child Health Hospital since November 2018. The baseline indicators were collected and established after their enrollment. Then they were followed up every 3 months

and failure to achieve a clinical pregnancy after 12 months of unprotected intercourse was defined as infertility. The individualized air pollution exposure levels of the subjects in 3 months prior to enrollment (spermatogenic cycle) were assessed by machine learning algorithm. Logistic regression model was established to determine the effect of air pollutant exposure on infertility and the potential susceptibility windows induced by single pollutant. Sensitivity analysis was carried out using two-pollutant model. The joint effects and interaction of air pollutants on infertility were analyzed by Bayesian kernel machine regression.

Results

A total of 2 297 male subjects were included in the study. After multiple test adjustment

the relative risk of infertility was increased by 29.3% (

=1.293

95%

: 1.022-1.636

=0.008) in the highest and lowest quartiles of PM

exposure during the 90 d prior to enrollment.

In the analysis of susceptibility windows

was associated with infertility at all stages from 0 to 90 d

and no significant susceptibility window was observed. No significant results were observed in the analysis of the joint effects and interactions of air pollutants.

Conclusion

Male exposure to PM

may increase the risk of infertility.

关键词

Keywords

references

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