Seasonal distribution in conceptions achieved by artificial insemination by donor

Area of Science:

• Reproductive Biology
• Human Reproduction
• Seasonal Variations in Fertility

Background:

• Artificial insemination from a donor (AID) is a common fertility treatment.
• Previous research has explored various factors influencing AID success rates.
• The potential impact of seasonality on conception has not been extensively studied.

Purpose of the Study:

• To investigate the distribution of conceptions following donor insemination.
• To identify any seasonal patterns in conception rates.
• To explore potential biological explanations for observed seasonal variations.

Main Methods:

• Analysis of 259 conception records from an artificial insemination clinic.
• Statistical evaluation of conception timing relative to calendar months.
• Correlation analysis with factors such as donor numbers, patient numbers, insemination frequency, and medical skill.

Main Results:

• Conception rates following donor insemination exhibited a distinct seasonal distribution.
• The period from early winter to early spring (October to March) showed higher conception rates, with a peak in November.
• Conception rates were not significantly influenced by the number of donors, patients, insemination frequency, or medical expertise.

Conclusions:

• The findings suggest a seasonal variation in factors influencing conception, potentially related to egg quality or endometrial receptivity.
• The observed seasonality has significant implications for optimizing fertility treatments, including in vitro fertilisation and gamete intrafallopian transfer.
• Further research is warranted to elucidate the precise mechanisms behind seasonal variations in human reproductive success.