Cross-sectional studies have found that individuals with depressive disorders or symptoms have elevated levels of inflammatory markers predictive of coronary artery disease, including interleukin-6 (IL-6) and C-reactive protein (CRP). Due to the paucity of prospective studies, however, the directionality of the depression-inflammation relationship is unclear. We evaluated the longitudinal associations between depressive symptoms and both IL-6 and CRP among 263 healthy, older men and women enrolled in the Pittsburgh Healthy Heart Project, a 6-year prospective cohort study. During the baseline and follow-up visits, participants completed the Beck Depression Inventory-II (BDI-II) to assess depressive symptoms and underwent blood draws to quantify serum IL-6 and CRP. Path analyses revealed that baseline BDI-II (β=.18, p <.01, ΔR 2 =.02) was a predictor of 6-year change in IL-6, even after adjustment for demographic, biomedical, and behavioral factors as well as other negative emotions. Of all the factors examined, only body-mass index was a stronger predictor of IL-6 change than depressive symptoms. In contrast to these results, baseline IL-6 did not predict 6-year change in BDI-II. Evidence of a weak bidirectional relationship between BDI-II and CRP was also observed; however, neither of these longitudinal associations was significant. The present findings indicate that depressive symptoms may precede and augment some inflammatory processes relevant to coronary artery disease among healthy, older adults. Therefore, our results imply that depression may lead to inflammation and that inflammation may be one of the mechanisms through which depression contributes to cardiovascular risk. Keywordsdepression; inflammation; interleukin-6; C-reactive protein; coronary artery disease; prospective study Epidemiologic evidence indicates that depression may be a risk factor for coronary artery disease (CAD), as both clinical depression and subthreshold depressive symptoms have been found to predict incident disease (Suls and Bunde, 2005). Importantly, the predictive value of Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. NIH Public Access Author ManuscriptBrain Behav Immun. Author manuscript; available in PMC 2010 October 1. NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscriptdepression is similar to that of many traditional cardiovascular risk factors (Rozanski et al., 2005), with relative risk ratios in the 1.5-2.7 range (Rugulies, 2002;Wulsin and Singal, 2003). Despite these findings, the mechanisms underlying this association are poorly understood. In m...
Background Despite its popularity, little is known about the measurement invariance of the Patient Health Questionnaire‐9 (PHQ‐9) across U.S. sociodemographic groups. Use of a screener shown not to possess measurement invariance could result in under/over‐detection of depression, potentially exacerbating sociodemographic disparities in depression. Therefore, we assessed the factor structure and measurement invariance of the PHQ‐9 across major U.S. sociodemographic groups. Methods U.S. population representative data came from the 2005–2016 National Health and Nutrition Examination Survey (NHANES) cohorts. We conducted a measurement invariance analysis of 31,366 respondents across sociodemographic factors of sex, race/ethnicity, and education level. Results Considering results of single‐group confirmatory factor analyses (CFAs), depression theory, and research utility, we justify a two‐factor structure for the PHQ‐9 consisting of a cognitive/affective factor and a somatic factor (RMSEA = 0.034, TLI = 0.985, CFI = 0.989). On the basis of multiple‐group CFAs testing configural, scalar, and strict factorial invariance, we determined that invariance held for sex, race/ethnicity, and education level groups, as all models demonstrated close model fit (RMSEA = 0.025–0.025, TLI = 0.985–0.992, CFI = 0.986–0.991). Finally, for all steps ΔCFI was <−0.004, and ΔRMSEA was <0.01. Conclusions We demonstrate that the PHQ‐9 is acceptable to use in major U.S. sociodemographic groups and allows for meaningful comparisons in total, cognitive/affective, and somatic depressive symptoms across these groups, extending its use to the community. This knowledge is timely as medicine moves towards alternative payment models emphasizing high‐quality and cost‐efficient care, which will likely incentivize behavioral and population health efforts. We also provide a consistent, evidence‐based approach for calculating PHQ‐9 subscale scores.
Assessed school-age youth repeatedly over the first 6 years of their insulin-dependent diabetes mellitus (IDDM) to determine self-perceived psychological adjustment. After the first year of IDDM, Ss exhibited a mild increase in depressive symptoms. Anxiety decreased for boys but increased for girls over the duration of IDDM. In contrast, self-esteem remained stable regardless of rehospitalizations or degree of metabolic control. Ss' adjustment shortly after IDDM onset, as reflected by levels of depression, anxiety, and self-esteem, were predictors of later adjustment. In general, Ss found the implications of IDDM more upsetting and the regimen more difficult with time, and girls were more upset by their illness than boys. The degree to which children were upset by the implications and management of IDDM varied as a function of their anxiety and depression.
Our findings suggest that the somatic-vegetative features of depression, but perhaps not anxiety and hostility/anger, may play an important role in the earlier stages of the development of coronary artery disease.
Although Hispanics are a burgeoning ethnic group in the United States, little is known about their pain-related experience. In order to address this gap, we critically reviewed the existing literature on the pain experience and management among Hispanic Americans (HAs). We focused our review to the literature on non-malignant pain, pain behaviors, and pain treatment seeking among HAs. Pain management experiences were examined from HA patients’ and healthcare providers’ perspectives. Our literature search included variations of the term “Hispanic” with “AND pain” in PubMed, Embase, Web of Science, ScienceDirect, and PsycINFO databases. A total of 117 studies met our inclusion criteria. We organized the results into a conceptual model with separate categories for biological/psychological and sociocultural/systems-level influences on HAs’ pain experience, response to pain, and seeking and receiving pain care. We also included information on healthcare providers’ experience of treating HA patients with pain. For each category, we identified future areas of research. We conclude with a discussion of limitations and clinical implications.
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