Many studies have shown that subclinical ketosis
(SCK) is associated with an increased risk of developing
various diseases, reproductive disorders, and
changes in milk production. The present work aims at
producing an overview between this disorder and theses
outcomes. A meta-analysis of the literature, including
131 different models from 23 papers, or a review
when the literature was scarce was conducted. For each
outcome, the odds ratio (OR), relative risk, or hazard
ratio was presented for various moderators to reduce
heterogeneity among the studies. The raw change in
milk production associated with SCK was estimated
and adjusted, taking into consideration the outcomes
known to interact with milk production during the
peripartum period. The results showed that 2 main
categories of moderators had a significant effect on the
adjusted risk.