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Ms. Hester is Content Specialist with Contemporary OB/GYN and Contemporary Pediatrics.
A recent study examined how insulin levels and body mass index may have ties to mental health concerns.
The impact of cardiometabolic levels on a person’s mental health has become more elucidated in recent years. A new investigation in JAMA Psychiatry examines the role that insulin levels as well as body mass index have on depression and psychosis later in in life.1
The researchers did a cohort study from the Avon Longitudinal Study of Parents and Children, using data from participants aged 1 to 24 years. Fasting insulin was measured at 9, 15, 18, and 24 years and body mass index measurements were performed at 1, 2, 3, 4, 7, 9, 10, 11, 12, 15, 18, and 24 years. The researchers also looked at data for a number of potential confounders including emotional and behavioral problems from childhood, smoking, physical activity, the father’s social class, and average caloric intake.
Fasting insulin level data were available for 5790 participants and body mass index data were available for 10,463 people, with a slight female majority in both categories. The researchers found that there were 5 distinct trajectories for body mass index and 3 distinct trajectories for fasting insulin. Every distinct trajectory was differentiated by mid-childhood. A persistently high fasting insulin level was linked to both a psychosis a psychosis at-risk mental state (adjusted odds ratio [aOR], 5.01; 95% CI, 1.76-13.19) and psychotic disorder (aOR, 3.22; 95% CI, 1.11-9.90). However, it was not liked to depression (aOR, 1.38; 95% CI, 0.75-2.54).
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