Key result
Type-D personality correlates with higher HbA1c, fasting glucose, fibrinogen, and lower nighttime HRV.
Why the study?
Does Type-D personality correlate with adverse biological and behavioral health pathways in an apparently healthy population?
Population
646 apparently healthy respondents, mean age 41.6±11.5, 12.2% women
Comparison
Type-D personality vs Persons without Type-D personality
Design
Cross-sectional
Authors
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Type-D personality links to worse glycemic control, inflammation, and autonomic function in healthy adults; hypothesis-generating for targeted screening or intervention trials.
Cross-Sectional (n=646)
No
Does Type-D personality correlate with adverse biological and behavioral health pathways in an apparently healthy population?
p-value: p=0.020
Type-D personality is associated with worse glycemic control, systemic inflammation, poorer autonomic modulation, and greater sleep difficulties, suggesting potential biological pathways linking it to poor health.
Jandackova et al. (2017) conducted a cross-sectional in Apparently healthy (n=646). Type-D personality vs. Non-Type-D personality was evaluated on HbA1c levels (p=0.020). Type-D personality was significantly associated with higher HbA1c, fasting plasma glucose, fibrinogen, and lower nighttime heart rate variability compared to individuals without Type-D personality.
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