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Mood disorders and adiposity are major public health challenges. Few studies have investigated the bidirectional association of weight and waist circumference (WC) change with psychological distress in middle age, while taking into account the potential U-shape of the association. The aim of this study was to examine the bidirectional association between psychological distress and categorical change in objectively measured weight and WC.
We analysed repeated measures (up to 17 522 person-observations in adjusted analyses) of psychological distress, weight and WC from the Whitehall II cohort. Participants were recruited at age 35–55 and 67% male. Psychological distress was assessed using the General Health Questionnaire. We used random-effects regressions to model the association between weight and WC changes and psychological distress, with and without a 5-year lag period.
Psychological distress was associated with weight and WC gain over the subsequent 5 years but not the second 5-year period. Weight gain and loss were associated with increased odds for incident psychological distress in models with and without time-lag [odds ratio (OR) for incident psychological distress after 5-year time-lag: loss 1.20, 95% confidence interval (CI) 1.00–1.43; gain>5% 1.20, 95% CI 1.02–1.40]. WC changes were only associated with psychological distress in models without time-lag (OR for incident psychological distress: loss 1.29, 95% CI 1.02–1.64; gain>5% 1.33, 95% CI 1.11–1.58).
Weight gain and loss increase the odds for psychological distress compared with stable weight over subsequent 10 years. In contrast, the association between psychological distress and subsequent weight and WC changes was limited to the first 5 years of follow-up.
Hypertension is associated with an increased risk of dementia and
depression with uncertain longitudinal associations with brain
To examine lifetime blood pressure as a predictor of brain structure in
A total of 190 participants (mean age 69.3 years) from the Whitehall II
study were screened for hypertension six times (1985–2013). In 2012–2013,
participants had a 3T-magnetic resonance imaging (MRI) brain scan. Data
from the MRI were analysed using automated and visual measures of global
atrophy, hippocampal atrophy and white matter hyperintensities.
Longitudinally, higher mean arterial pressure predicted increased
automated white matter hyperintensities (P<0.002).
Cross-sectionally, hypertensive participants had increased automated
white matter hyperintensities and visually rated deep white matter
hyperintensities. There was no significant association with global or
Long-term exposure to high blood pressure predicts hyperintensities,
particularly in deep white matter. The greatest changes are seen in those
with severe forms of hypertension, suggesting a dose–response
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