Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/36921
Title: Do seasonal variations in ambient temperature, humidity and daylight duration affect semen parameters? A retrospective analysis over eight years
Authors: Kabukçu, Cihan
Çil, Nazlı
Turan, Tahir
Özlülerden, Yusuf
Çabuş, Ümit
Abban Mete, Gülçin
Keywords: circannual changes
environmental factors
semen parameters
adult
article
birth rate
controlled study
environmental factor
environmental temperature
human
humidity
major clinical study
male
retrospective study
seasonal variation
seminal plasma
spermatozoon count
spermatozoon density
summer
sunlight
university hospital
Publisher: Blackwell Publishing Ltd
Abstract: We aimed to evaluate the possible effects of seasonal variation on semen parameters. We retrospectively analysed the data of 6,116 semen samples collected at a university hospital for eight years. The past ambient temperature, relative humidity and daylight duration records, and birth registry of the province were obtained to examine the relationship of seasonal changes in semen parameters with annual birth rates and environmental factors. The mean age was 33.03 ± 6.86 years. We found a significant difference between months for sperm concentration (p <.0001), total sperm count (p <.0001), progressively motile sperm count (p <.0001) and normal sperm morphology (p =.028). The sperm concentration and total count were significantly lower in July and August compared with December, May and June. The progressively motile sperm count in October was 23.6% less than the value of May. The temperature and temperature–humidity index were negatively correlated with semen parameters. The highest number of births was in the summer. However, no correlation was present between deliveries and the semen concentration regarding months (rs = 0.199, p =.083). In conclusion, we observed significant seasonal and monthly differences in sperm concentration, sperm count and progressively motile sperm count. Increased ambient temperature due to seasonal changes may be a detrimental factor for semen parameters. © 2020 Wiley-VCH GmbH
URI: https://hdl.handle.net/11499/36921
https://doi.org/10.1111/and.13777
ISSN: 0303-4569
Appears in Collections:PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Tıp Fakültesi Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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