Seasonal fluctuation of in vitro fertilization encounters in the United States.

ABSTRACT:

Purpose

To examine patient and hospital characteristics related to seasonal fluctuation in in vitro fertilization (IVF).

Methods

This retrospective cohort study examined 33,077 oocyte retrievals identified in the National Ambulatory Surgery Sample. Exposure assignment was monthly IVF encounters: low-volume months (<25%ile), mid-volume months (≥25/<75%ile), and high-volume months (>75%ile). Main outcomes were patient and hospital characteristics related to the exposure groups, assessed with a multinomial regression model.

Results

The median IVF encounters were 977 per month, ranging from 657 to 1074 (absolute-difference 417). January, July, and December were the lowest-quartile volume months, ranging from 657 to 710 encounters per month (low-volume months). May, August

SUBMITTER: McGough AM 

PROVIDER: S-EPMC10239406 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature