Browsing by Subject "Prospective"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Depression and Anxiety Screens as Predictors of 8-Year Incidence of Myocardial Infarction and Stroke in Primary Care Patients
    (American Psychosomatic Society, 2016-06) Stewart, Jesse C.; Hawkins, Misty A. W.; Khambaty, Tasneem; Perkins, Anthony J.; Callahan, Christopher M.; Psychology, School of Science
    Because depression and anxiety are typically studied in isolation, our purpose was to examine the relative importance of these overlapping emotional factors in predicting incident cardiovascular disease (CVD). Methods We examined depression and anxiety screens, and their individual items, as predictors of incident hard CVD events, myocardial infarction, and stroke over eight years in a diverse sample of 2,041 older primary care patients initially free of CVD. At baseline, participants completed self-report depression and anxiety screens. Data regarding CVD events were obtained from an electronic medical record system and the Centers for Medicare and Medicaid Services analytic files. Results During follow-up, 683 (33%) experienced a CVD event. Cox proportional hazards models – adjusted for demographic and CVD risk factors – revealed that a positive anxiety screen, but not a positive depression screen, was associated with an increased risk of a hard CVD event in separate models (Years 0–3: Anxiety HR=1.54, p<.001; Years 3+: Anxiety HR=0.99, p=.93; Depression HR=1.10, p=.41), as well as when entered into the same model (Years 0–3: Anxiety HR=1.53, p<.001; Years 3+: Anxiety HR=0.99, p=.99; Depression HR=1.03, p=.82). Analyses examining individual items and secondary outcomes showed that the anxiety-CVD association was largely driven by the feeling anxious item and the myocardial infarction outcome. Conclusions Anxiety, especially feeling anxious, is a unique risk factor for CVD events in older adults, independent of conventional risk factors and depression. Anxiety deserves increased attention as a potential factor relevant to CVD risk stratification and a potential target of CVD primary prevention efforts.
  • Thumbnail Image
    Item
    Depression and Anxiety Screens as Simultaneous Predictors of 10-Year Incidence of Diabetes Mellitus in Older Adults in Primary Care
    (Wiley, 2017-02) Khambaty, Tasneem; Callahan, Christopher M.; Perkins, Anthony J.; Stewart, Jesse C.; Medicine, School of Medicine
    OBJECTIVES: To examine depression and anxiety screens and their individual items as simultaneous predictors of incident diabetes mellitus. DESIGN: Ten-year follow-up study of individuals screened for the Improving Mood-Promoting Access to Collaborative Treatment (IMPACT) trial. SETTING: Two large urban primary care clinics in Indianapolis, Indiana. PARTICIPANTS: Diverse sample (53% African American, 80% of lower socioeconomic status) of 2,156 older adults initially free of diabetes mellitus. MEASUREMENTS: Depression and anxiety screens were completed during routine primary care visits between 1999 and 2001. Incident diabetes mellitus data were obtained from an electronic medical record system and the Centers for Medicare and Medicaid Services analytical files though 2009. RESULTS: Over the 10-year period, 558 (25.9%) participants had diabetes mellitus onset. Cox proportional hazards models adjusted for demographic and diabetes mellitus risk factors revealed that a positive screen for anxiety, but not for depression, predicted incident diabetes mellitus when entered into separate models (anxiety: hazard ratio (HR) = 1.36, 95% confidence interval (CI) = 1.15-1.61, P < .001; depression: HR = 1.18, 95% CI = 0.95-1.46, P = .13) and when entered simultaneously into one model (anxiety: HR = 1.35, 95% CI = 1.12-1.61, P < .001; depression: HR = 1.04, 95% CI = 0.83-1.31, P = .73). The feeling anxious (P = .03) and the worry (P = .02) items predicted incident diabetes mellitus independent of the depression screen. CONCLUSION: These findings suggest that screening positive for anxiety is a risk factor for diabetes mellitus in older adults independent of depression and traditional diabetes mellitus risk factors. Anxiety requires greater consideration and awareness in the context of diabetes mellitus risk assessment and primary prevention.
  • Thumbnail Image
    Item
    Nucleus accumbens functional connectivity changes underlying alcohol expectancies in bipolar disorder and prospective alcohol outcomes: a within-subject randomized placebo-controlled alcohol administration fMRI study
    (Frontiers Media, 2025-04-09) Lippard, Elizabeth T. C.; Kirsch, Dylan E.; Le, Vanessa; Lee, Skyler; Bibb, Nadia; Meek, Kaitlyn; Kosted, Raquel; Huffman, Ansley; Almeida, J. R. C.; Fromme, Kim; Strakowski, Stephen M.; Psychiatry, School of Medicine
    Introduction: Alcohol use disorder (AUD) occurs at higher rates in individuals with bipolar disorder compared to the general population. A paucity of data are available on specific mechanisms that may contribute to bipolar and AUD co-occurrence. We recently reported differences in alcohol expectancies and placebo response during alcohol administration in early-stage bipolar disorder, compared to healthy young adults. This current report investigated subjective and neural response following placebo beverage consumption in young adults with bipolar disorder. Methods: As part of a within-subject placebo-controlled alcohol administration study, 54 young adults (53% with bipolar disorder type I, age mean + SD = 23 + 2 years, 64% female) completed resting state functional MRI (rsfMRI) scans at baseline (pre-beverage) and following placebo and alcohol consumption (counter-balanced). Participants completed subjective response measures during placebo and alcohol beverage conditions. Between-group differences in subjective response and placebo-related changes in functional connectivity of the Nucleus Accumbens (NAc) with other brain regions, compared to a pre-beverage rsfMRI baseline condition, were investigated. Fisher-transformed correlation coefficients between ROIs and seed-to-clusters showing a significant group-by-condition (placebo, pre-beverage rsfMRI) interaction were calculated. Associations with prospective alcohol use and problems were explored in a subgroup with longitudinal data. Results: Young adults with bipolar disorder reported greater intoxication during the placebo condition, compared to healthy young adults (main effects of group: p < 0.05). Compared to pre-beverage rsfMRI, the placebo condition related to increased connectivity between bilateral NAc and regions within the sensorimotor network in bipolar disorder. Comparison participants showed the opposite pattern of placebo-related changes in connectivity (group-by-condition, p-FDR < 0.05). Greater anxiolytic effects endorsed during placebo and associated increases in NAc functional connectivity related to greater alcohol use and alcohol problems at follow-up in bipolar disorder (p < 0.05). Discussion: Results suggest differences in placebo response in bipolar disorder, including distinct neural correlates, that may relate to prospective alcohol use/problems. Given the theoretical association between placebo response and self-reported alcohol expectancies, findings could open the door to interventions aimed at changing expectancies.