The Claim
Among Korean women aged 40–49, shift work is associated with nearly double the odds of elevated insulin resistance compared to day workers, with an odds ratio of 1.88, suggesting this age group may be particularly vulnerable to metabolic disruption from non-daytime work schedules.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Korean women in their 40s who work nights or irregular shifts are almost twice as likely to have high insulin resistance — a sign their body isn’t using sugar properly — compared to those who work regular daytime hours.
See the scientific wording
Among Korean women aged 40–49, shift work is associated with nearly double the odds of elevated insulin resistance compared to day workers (OR = 1.88), indicating this age group may be particularly vulnerable to metabolic disruption from non-daytime work schedules.
What the research says
1 studyStudy: Association between shift work and insulin resistance in women: Implications for metabolic health
This study found that Korean women who work nights or irregular shifts are more likely to have insulin resistance, especially those in their 40s — which matches the claim that shift work nearly doubles the risk for this group.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.