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收稿:2020-09-24,
纸质出版:2021-01-15
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李雪, 何孟超, 王艺蒙, 等. 重庆市大学生指长比与男性生殖表型的关联研究[J]. 第三军医大学学报, 2021,43(1):45-51.
Xue LI, Mengchao HE, Yimeng WANG, et al. Correlation between second to fourth digit ratio and male reproductive phenotypes in college students in Chongqing[J]. Journal of Third Military Medical University, 2021, 43(1): 45-51.
李雪, 何孟超, 王艺蒙, 等. 重庆市大学生指长比与男性生殖表型的关联研究[J]. 第三军医大学学报, 2021,43(1):45-51. DOI: 10.16016/j.1000-5404.202009205.
Xue LI, Mengchao HE, Yimeng WANG, et al. Correlation between second to fourth digit ratio and male reproductive phenotypes in college students in Chongqing[J]. Journal of Third Military Medical University, 2021, 43(1): 45-51. DOI: 10.16016/j.1000-5404.202009205.
Objective
2
To investigate the association of the ratio of second to fourth digit with adult male reproductive phenotypes in the undergraduates in Chongqing.
Methods
2
A total of 569 male undergraduates were sampled from our previously established cohort of the male reproductive health in Chongqing college students(MARHCS) study. Their lengths of second and fourth digits in the left hand were measured to calculate the ratio of second to fourth digit. And their anogenital distance
testicular vertical diameters
testicular volume
semen parameters and reproductive hormone levels were measured and detected.
Results
2
The median digit ratio was 0.97 in the subjects
with 86.29% of them having the ratio ≤1. After adjustment of smoking
drinking
body mass index and abstinence period
a 0.1 increase of digit ratio was associated with 12.5%(95%
CI
: 0.7%~37.3%
P
=0.033) increase of semen volume
and 87.1%(95%
CI
: 1.3%~819.9%
P
=0.038) increase of total sperm count. Single factor variance analysis showed that the digit ratio was significantly correlated with the distance of anus center to scrotum posterior base(AS) in (
r
=0.136
P
=0.001). When the covariates were controlled
a 0.1 increase of digit ratio was associated with 2.5%(95%
CI
: 0.3%~5.2%
P
=0.023) increase of the anogenital distance. Compared to the subjects with digit ratio ≤1
those with digit ratio
>
1 were associated with -10.3%(95%
CI
: -17.6%~-2.5%
P
=0.012) follicle-stimulating hormone. However
these associations were not statistical significance after multiple-test corre
ction.
Conclusion
2
Conclusion Digit ratio has no substantial association with adult reproductive phenotypes
including semen parameters and reproductive hormones in the healthy male college students in Chongqing.
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