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| Author(s): |
Adriana Cezaretto
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Saúde Pública (FSP/CIR) |
| Defense date: | 2015-01-09 |
| Examining board members: |
Sandra Roberta Gouvea Ferreira Vivolo;
Isabela Judith Martins Benseñor;
Maria Cristina Pereira Lima;
Fernanda Baeza Scagliusi;
Dirce Maria Trevisan Zanetta
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| Advisor: | Sandra Roberta Gouvea Ferreira Vivolo |
| Abstract | |
Introduction: Nowadays non-communicable chronic diseases, such as diabetes mellitus and depression, are major public health problems worldwide. These conditions are commonly associated and contribute to cardiovascular complications and mortality. Previous studies showed that motivational interviews may improve cardiometabolic and psychological aspects. Objectives: In order to assess lifestyle intervention this study includes: 1) Systematic review and meta-analysis to verify effect of lifestyle interventions on depression; 2) to compare effects of two lifestyle interventions in the cardiometabolic risk and in retention of at-risk individuals; 3) to analyze influence of depression in cardiometabolic response to interventions mediated by inflammation and, 4) to assess residual effect at 9 months after completion of interventions according to clinical variables, quality of life and depression. Methods: In the systematic review major bibliographic databases were searched. Meta-analysis was conducted by random-effects model. The effect of method, duration, and frequency of the interventions were determined via subgroup analyses. Our longitudinal study includes prediabetic adults, submitted to one of two lifestyle interventions (TRD:Traditional or INT:Interdisciplinary). Data were collected (anthropometry, blood pressure, biochemical profile and inflammation markers CRP, TNF-, adiponectin) at baseline, 9th and 18th month, as well as 9 months after completion of interventions (observational phase). Diet was evaluated by 24h recalls and physical activity by IPAQ. Depression was measured by Beck Inventory and quality of life (QOL) by SF-36. Linear mixed-models were applied for longitudinal analysis. Student t-test was used to compare means and chi-square for frequencies. Pearson coefficient was used to select variables for multiple regression analysis. Results: Through systematic review and meta-analysis, we found that lifestyle interventions to manage diabetes reduce depression scores (SMD= -0.151; IC: -0.253, -0.049). Among 183 individuals, 46 per cent had depression, 12 mostly women, with greater adiposity and lower QOL scores. After 18 months of both interventions, depression scores were reduced. Compared to TRD, the INT had greater reductions in energy intake, adiposity, blood pressure levels, likewise higher adiponectin and physical activity levels. Only in the TRD individuals who dropped out showed worse health profile and increased depression scores, compared to those who non dropped out. In multiple regressions, depression in women increased the chances of non-improvement in blood pressure and glucose levels. This association was not mediated by inflammation. In the observational phase, adiposity, but not other parameters, differed between groups over time. QOL and depression were maintained improved with both interventions. Discussion: 1) This meta-analysis suggests that lifestyle interventions intended to manage DM were effective in improving depression. Regular screening for depression is essential for this at-risk subset; 2) The interdisciplinary psychoeducation-based intervention proved to be useful for reducing cardiometabolic risk profile, and improving retention of individuals with worse profile. This approach represents a feasible strategy for motivating at-risk individuals to adopt a long-term healthy lifestyle; 3) Depression predicted a lower chance of improving long-term cardiometabolic risk, particularly in women. We suggest that screening and management of depression as part of lifestyle interventions can potentially improve cardiometabolic responses. 4) Interdisciplinary intervention improved QOL and reduced depression scores, as well as maintained weight loss 9 months after interruption of intervention, which may contributes to the sustained improvement. Conclusion: In general, interdisciplinary intervention was effective to improve cardiometabolic risk and depression, likewise to retain individuals with worse health status. It was not found benefits mediated by inflammation reduction. This strategy may motivate individuals at high risk to adopt healthier life habits. Health professionals must be aware about deleterious effects of depression to manage individuals at risk. Diagnosis and treatment of depression may contribute to optimize treatments of cardiometabolic diseases. (AU) | |
| FAPESP's process: | 11/06376-7 - Analysis of the association between depression and cardiometabolic diseases via inflammatory markers in an intervention for type 2 diabetes prevention |
| Grantee: | Adriana Cezaretto |
| Support Opportunities: | Scholarships in Brazil - Doctorate |