Examinando por Autor "Kutty, Vellappillil Raman"

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  • Publicación
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    Association of Symptoms of Depression with Cardiovascular Disease and Mortality in Low-, Middle-, and High-Income Countries
    (American Medical Association, 2020-06-10) Rajan, Selina; McKee, Martin; Rangarajan, Sumathy; Bangdiwala, Shrikant; Rosengren, Annika; Gupta, Rajeev; Kutty, Vellappillil Raman; Wielgosz, Andreas; Lear, Scott; AlHabib, Khalid F.; Co, Homer U.; Lopez-Jaramillo, Patricio; Avezum, Alvaro; Seron, Pamela; Oguz, Aytekin; Kruger, Iolanthé M.; Diaz, Rafael; Nafiza, Mat-Nasir; Chifamba, Jephat; Yeates, Karen; Kelishadi, Roya; Sharief, Wadeia Mohammed; Szuba, Andrzej; Khatib, Rasha; Rahman, Omar; Iqbal, Romaina; Bo, Hu; Yibing, Zhu; Wei, Li; Yusuf, Salim; The Prospective Urban Rural Epidemiology (PURE) Study Investigators; Everest
    IMPORTANCE Depression is associated with incidence of and premature death from cardiovascular disease (CVD) and cancer in high-income countries, but it is not known whether this is true in low- and middle-income countries and in urban areas, where most people with depression now live. OBJECTIVE To identify any associations between depressive symptoms and incident CVD and all-cause mortality in countries at different levels of economic development and in urban and rural areas. DESIGN, SETTING, AND PARTICIPANTS This multicenter, population-based cohort study was conducted between January 2005 and June 2019 (median follow-up, 9.3 years) and included 370 urban and 314 rural communities from 21 economically diverse countries on 5 continents. Eligible participants aged 35 to 70 years were enrolled. Analysis began February 2018 and ended September 2019. EXPOSURES Four or more self-reported depressive symptoms from the Short-Form Composite International Diagnostic Interview. MAIN OUTCOMES AND MEASURES Incident CVD, all-cause mortality, and a combined measure of either incident CVD or all-cause mortality. RESULTS Of 145 862 participants, 61 235 (58%) were male and the mean (SD) age was 50.05 (9.7) years. Of those, 15 983 (11%) reported 4 or more depressive symptoms at baseline. Depression was associated with incident CVD (hazard ratio [HR], 1.14; 95% CI, 1.05-1.24), all-cause mortality (HR, 1.17; 95% CI, 1.11-1.25), the combined CVD/mortality outcome (HR, 1.18; 95% CI, 1.11-1.24), myocardial infarction (HR, 1.23; 95% CI, 1.10-1.37), and noncardiovascular death (HR, 1.21; 95% CI, 1.13-1.31) in multivariable models. The risk of the combined outcome increased progressively with number of symptoms, being highest in those with 7 symptoms (HR, 1.24; 95% CI, 1.12-1.37) and lowest with 1 symptom (HR, 1.05; 95% CI, 0.92 -1.19; P for trend < .001). The associations between having 4 or more depressive symptoms and the combined outcome were similar in 7 different geographical regions and in countries at all economic levels but were stronger in urban (HR, 1.23; 95% CI, 1.13-1.34) compared with rural (HR, 1.10; 95% CI, 1.02-1.19) communities (P for interaction = .001) and in men (HR, 1.27; 95% CI, 1.13-1.38) compared with women (HR, 1.14; 95% CI, 1.06-1.23; P for interaction < .001). CONCLUSIONS AND RELEVANCE In this large, population-based cohort study, adults with depressive symptoms were associated with having increased risk of incident CVD and mortality in economically diverse settings, especially in urban areas. Improving understanding and awareness of these physical health risks should be prioritized as part of a comprehensive strategy to reduce the burden of noncommunicable diseases worldwide.
  • Publicación
    Acceso abierto
    Variations in risks from smoking between high-income, middle-income, and low-income countries: an analysis of data from 179 000 participants from 63 countries
    (2022-02-05) Sathish, Thirunavukkarasu; Teo, Koon K.; Britz-McKibbin, Philip; Gill, Biban; Islam, Shofiqul; Paré, Guillaume; Rangarajan, Sumathy; Duong, MyLinh; Lanas, Fernando; Lopez-Jaramillo, Patricio; Mony, Prem K.; Pinnaka, Lakshmi; Kutty, Vellappillil Raman; Orlandini, Andres; Avezum, Alvaro; Wielgosz, Andreas; Poirier, Paul; Alhabib, Khalid F.; Temizhan, Ahmet; Chifamba, Jephat; Yeates, Karen; Kruger, Iolanthé M.; Khatib, Rasha; Yusuf, Rita; Rosengren, Annika; Zatonska, Katarzyna; Iqbal, Romaina; Lui, Weida; Lang, Xinyue; Li, Sidong; Hu, Bo; Dans, Antonio L.; Yusufali, Afzal Hussein; Bahonar, Ahmad; O’Donnell, Martin J.; McKee, Martin; Yusuf, Salim; Masira
    Background Separate studies suggest that the risks from smoking might vary between high-income (HICs), middle-income (MICs), and low-income (LICs) countries, but this has not yet been systematically examined within a single study using standardised approaches. We examined the variations in risks from smoking across different country income groups and some of their potential reasons. Methods We analysed data from 134 909 participants from 21 countries followed up for a median of 11·3 years in the Prospective Urban Rural Epidemiology (PURE) cohort study; 9711 participants with myocardial infarction and 11 362 controls from 52 countries in the INTERHEART case-control study; and 11 580 participants with stroke and 11 331 controls from 32 countries in the INTERSTROKE case-control study. In PURE, all-cause mortality, major cardiovascular disease, cancers, respiratory diseases, and their composite were the primary outcomes for this analysis. Biochemical verification of urinary total nicotine equivalent was done in a substudy of 1000 participants in PURE. Findings In PURE, the adjusted hazard ratio (HR) for the composite outcome in current smokers (vs never smokers) was higher in HICs (HR 1·87, 95% CI 1·65–2·12) than in MICs (1·41, 1·34–1·49) and LICs (1·35, 1·25–1·46; interaction p<0·0001). Similar patterns were observed for each component of the composite outcome in PURE, myocardial infarction in INTERHEART, and stroke in INTERSTROKE. The median levels of tar, nicotine, and carbon monoxide displayed on the cigarette packs from PURE HICs were higher than those on the packs from MICs. In PURE, the proportion of never smokers reporting high second-hand smoke exposure (≥1 times/day) was 6·3% in HICs, 23·2% in MICs, and 14·0% in LICs. The adjusted geometric mean total nicotine equivalent was higher among current smokers in HICs (47·2 μM) than in MICs (31·1 μM) and LICs (25·2 μM; ANCOVA p<0·0001). By contrast, it was higher among never smokers in LICs (18·8 μM) and MICs (11·3 μM) than in HICs (5·0 μM; ANCOVA p=0·0001). Interpretation The variations in risks from smoking between country income groups are probably related to the higher exposure of tobacco-derived toxicants among smokers in HICs and higher rates of high second-hand smoke exposure among never smokers in MICs and LICs.