Exposure to residential green space and semen quality among Chinese men

IF 6.2 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Ecotoxicology and Environmental Safety Pub Date : 2024-11-15 DOI:10.1016/j.ecoenv.2024.117309

Tian Liang , Yangchang Zhang , Wangnan Cao , Yufeng Li , Qiang Zeng , Shengzhi Sun

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Abstract

Background

Residential greenness has been linked to various health benefits, but evidence on its association with sperm quality remains limited.

Methods

We enrolled 28,089 adult men from an infertility clinic in Hubei, China, from 2014 to 2020. Residential greenness was estimated using the Normalized Vegetation Index (NDVI) from satellite imagery, averaged within buffers of 250 m, 500 m and 1000 m around each participant’s residential address. We employed multivariate linear regression analysis to evaluate the association between NDVI exposure and semen quality, while controlling for individual characteristics and semen collection season. Additionally, we performed subgroup analyses to investigate potential variations in the association based on individual characteristics.

Results

An interquartile range increase of 0.243 in NDVI within the 1000 m buffer was associated with increases of 1.68 % (95 % CI: 0.31 %, 3.06 %) in sperm concentration, 0.43 % (95 % CI: 0.08 %, 0.79 %) in progressive motility, and 0.50 % (95 % CI: 0.14 %, 0.87 %) in total motility. These associations were consistent across different buffer sizes. The associations were more pronounced during the 70–90 lag days prior to semen collection (spermatogenesis stage) and among men aged ≥ 40 years or those with lower education levels.

Conclusions

Our study demonstrated that exposure to residential greenness may act as an innovative protective factor for semen quality.

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居住区绿地与中国男性的精液质量

背景：住宅绿化与各种健康益处有关，但其与精子质量相关的证据仍然有限：方法：2014 年至 2020 年，我们从中国湖北省的一家不孕不育诊所招募了 28089 名成年男性。我们使用卫星图像中的归一化植被指数（NDVI）来估算居住区的绿化程度，并在每位参与者居住地址周围 250 米、500 米和 1000 米的缓冲区内取平均值。我们采用多元线性回归分析来评估 NDVI 暴露与精液质量之间的关系，同时控制个体特征和精液采集季节。此外，我们还进行了分组分析，以研究基于个体特征的潜在关联变化：结果：在1000米缓冲区内，NDVI的四分位数间距每增加0.243，精子浓度就会增加1.68%（95% CI：0.31%，3.06%），精子运动能力就会增加0.43%（95% CI：0.08%，0.79%），精子总运动能力就会增加0.50%（95% CI：0.14%，0.87%）。这些关联在不同缓冲区大小的情况下是一致的。在精液采集前的 70-90 天（精子发生阶段）以及年龄≥ 40 岁或教育水平较低的男性中，这种关联更为明显：我们的研究表明，接触住宅绿化可作为精液质量的创新保护因素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ecotoxicology and Environmental Safety 环境科学-毒理学

CiteScore

12.10

自引率

5.90%

发文量

1234

审稿时长

88 days

期刊介绍： Ecotoxicology and Environmental Safety is a multi-disciplinary journal that focuses on understanding the exposure and effects of environmental contamination on organisms including human health. The scope of the journal covers three main themes. The topics within these themes, indicated below, include (but are not limited to) the following: Ecotoxicology、Environmental Chemistry、Environmental Safety etc.