<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.1 20151215//EN" "https://jats.nlm.nih.gov/publishing/1.1/JATS-journalpublishing1.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="letter" dtd-version="1.1" specific-use="sps-1.8" xml:lang="en">
  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">Arq Bras Cardiol</journal-id>
      <journal-id journal-id-type="publisher-id">abc</journal-id>
      <journal-title-group>
        <journal-title>Arquivos Brasileiros de Cardiologia</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Arq. Bras. Cardiol.</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">0066-782X</issn>
      <issn pub-type="epub">1678-4170</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia - SBC</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v3">X6tVJkZLL3QW8BGjzMRSxMF</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v2">S0066-782X2018001800867</article-id>
      <article-id pub-id-type="doi">10.5935/abc.20180221</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Letter to the Editor</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Anxiety and Depression and their Association with Low Quality of Life in Patients with Metabolic Syndrome</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Silva</surname>
            <given-names>Mariane Lopes da</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Mari</surname>
            <given-names>Mariana Alievi</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff id="aff1">
          <institution content-type="orgname">Funda&#231;&#227;o Universit&#225;ria de Cardiologia</institution>
          <institution content-type="orgdiv1">Instituto de Cardiologia</institution>
          <addr-line>
            <city>Porto Alegre</city>
            <state>RS</state>
          </addr-line>
          <country country="BR">Brazil</country>
          <institution content-type="original">Instituto de Cardiologia/Funda&#231;&#227;o Universit&#225;ria de Cardiologia (ICFUC), Porto Alegre, RS - Brazil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c1"><bold>Mailing Address: Mariane Lopes da Silva</bold> Av. Princesa Izabel, 370. CEP 90620-000, Porto Alegre, RS - Brazil E-mail: <email>marianelopes.to@hotmail.com</email>
				</corresp>
      </author-notes>
      <pub-date pub-type="epub-ppub">
        <month>12</month>
        <year>2018</year>
      </pub-date>
      <volume>111</volume>
      <issue>6</issue>
      <fpage>867</fpage>
      <lpage>867</lpage>
      <history>
        <date date-type="received">
          <day>02</day>
          <month>08</month>
          <year>2018</year>
        </date>
        <date date-type="rev-recd">
          <day>19</day>
          <month>09</month>
          <year>2018</year>
        </date>
        <date date-type="accepted">
          <day>19</day>
          <month>09</month>
          <year>2018</year>
        </date>
      </history>
      <permissions>
        <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/" xml:lang="en">
          <license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>Depressive Disorder</kwd>
        <kwd>Stress, Physiological</kwd>
        <kwd>Depression</kwd>
        <kwd>Metabolic Syndrome</kwd>
        <kwd>Quality of Life</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <p>
      <bold>Dear Editor,</bold>
    </p>
    <p>We read the article entitled "Lifestyle Intervention on Metabolic Syndrome and its Impact on Quality of Life: A Randomized Controlled Trial", by Saboya et al.<xref ref-type="bibr" rid="B1">1</xref> with great interest and would like to contribute with some suggestions.</p>
    <p>Firstly, regarding the method. There are no reports about the blinding of the evaluators, both for the interviews and for body mass index and waist circumference measurements. This is a factor considered a high risk of bias by the "Cochrane Collaboration's tool for assessing risk of bias"<xref ref-type="bibr" rid="B2">2</xref> since the interviewers, even unconsciously, may influence the responses and their view of the participants.</p>
    <p>Secondly, regarding the results. The researchers reported that the quality of life of patients with metabolic syndrome is affected not only by the clinical picture but is also significantly affected by the presence of depression and anxiety.<xref ref-type="bibr" rid="B1">1</xref> The prevalence of depression and anxiety was 41.7% and 22.2%, respectively, and these data are not associated with the metabolic syndrome components.</p>
    <p>Anxiety and depression have often been associated with metabolic syndrome, as well as other non-transmissible chronic diseases, due to the limiting characteristic the disease has on the individuals' lives. The present study did not demonstrate this association, perhaps due to the sample size, which was too small for a study with so many stages and variables for assessment.</p>
    <p>The substantial loss of subjects may have compromised the results. Most studies<xref ref-type="bibr" rid="B3">3</xref><sup>,</sup><xref ref-type="bibr" rid="B4">4</xref> that associate metabolic syndrome with depression and anxiety, and also evaluate these patients' quality of life, have a larger sample size.</p>
  </body>
  <back>
    <ref-list>
      <title>References</title>
      <ref id="B1">
        <label>1</label>
        <mixed-citation>1 Saboya PP, Bodanase LC, Zimmermann PR, Gustavo AS, Macagnan FE, Feoli AP, et al. Interven&#231;&#227;o de estilo de vida na s&#237;ndrome metab&#243;lica e seu impacto na qualidade de vida: um estudo controlado randomizado. Arq Bras. Cardiol. 2017;10108(1):600-9.</mixed-citation>
        <element-citation publication-type="journal">
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            <name>
              <surname>Saboya</surname>
              <given-names>PP</given-names>
            </name>
            <name>
              <surname>Bodanase</surname>
              <given-names>LC</given-names>
            </name>
            <name>
              <surname>Zimmermann</surname>
              <given-names>PR</given-names>
            </name>
            <name>
              <surname>Gustavo</surname>
              <given-names>AS</given-names>
            </name>
            <name>
              <surname>Macagnan</surname>
              <given-names>FE</given-names>
            </name>
            <name>
              <surname>Feoli</surname>
              <given-names>AP</given-names>
            </name>
          </person-group>
          <article-title>Interven&#231;&#227;o de estilo de vida na s&#237;ndrome metab&#243;lica e seu impacto na qualidade de vida um estudo controlado randomizado. Arq Bras</article-title>
          <source>Cardiol</source>
          <year>2017</year>
          <volume>10108</volume>
          <issue>1</issue>
          <fpage>600</fpage>
          <lpage>609</lpage>
        </element-citation>
      </ref>
      <ref id="B2">
        <label>2</label>
        <mixed-citation>2 Carvalho APV , Silva V, Grande AJ. Avalia&#231;&#227;o do risco de vi&#233;s de ensaios cl&#237;nicos randomizados pela ferramenta da colabora&#231;&#227;o Cochrane. Diagn Tratamento. 2013;18(1):38-44.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Carvalho</surname>
              <given-names>APV</given-names>
            </name>
            <name>
              <surname>Silva</surname>
              <given-names>V</given-names>
            </name>
            <name>
              <surname>Grande</surname>
              <given-names>AJ</given-names>
            </name>
          </person-group>
          <article-title>Avalia&#231;&#227;o do risco de vi&#233;s de ensaios cl&#237;nicos randomizados pela ferramenta da colabora&#231;&#227;o Cochrane</article-title>
          <source>Diagn Tratamento</source>
          <year>2013</year>
          <volume>18</volume>
          <issue>1</issue>
          <fpage>38</fpage>
          <lpage>44</lpage>
        </element-citation>
      </ref>
      <ref id="B3">
        <label>3</label>
        <mixed-citation>3 Saboya PP, Bodanase LC, Zimmermann PR, Gustavo AS, Assump&#231;&#227;o CM, Londero F. S&#237;ndrome metab&#243;lica e qualidade de vida: uma revis&#227;o sistem&#225;tica. Rev Lat Am Enfermagem. 2016 Nov 28;24:e2848.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Saboya</surname>
              <given-names>PP</given-names>
            </name>
            <name>
              <surname>Bodanase</surname>
              <given-names>LC</given-names>
            </name>
            <name>
              <surname>Zimmermann</surname>
              <given-names>PR</given-names>
            </name>
            <name>
              <surname>Gustavo</surname>
              <given-names>AS</given-names>
            </name>
            <name>
              <surname>Assump&#231;&#227;o</surname>
              <given-names>CM</given-names>
            </name>
            <name>
              <surname>Londero</surname>
              <given-names>F</given-names>
            </name>
          </person-group>
          <article-title>S&#237;ndrome metab&#243;lica e qualidade de vida uma revis&#227;o sistem&#225;tica</article-title>
          <source>Rev Lat Am Enfermagem</source>
          <year>2016</year>
          <month>11</month>
          <day>28</day>
          <volume>24</volume>
          <elocation-id>e2848</elocation-id>
        </element-citation>
      </ref>
      <ref id="B4">
        <label>4</label>
        <mixed-citation>4 Ribeiro RP, Marziale MHP, Matins JT, Ribeiro PHV, Robazzi MLC, Dalmas JC. Prevalence of Metabolic Syndrome among nursing personnel and its association with occupational stress, anxiety and depression. Rev Lat Am Enfermagem. 2015;23(3):435-40.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Ribeiro</surname>
              <given-names>RP</given-names>
            </name>
            <name>
              <surname>Marziale</surname>
              <given-names>MHP</given-names>
            </name>
            <name>
              <surname>Matins</surname>
              <given-names>JT</given-names>
            </name>
            <name>
              <surname>Ribeiro</surname>
              <given-names>PHV</given-names>
            </name>
            <name>
              <surname>Robazzi</surname>
              <given-names>MLC</given-names>
            </name>
            <name>
              <surname>Dalmas</surname>
              <given-names>JC</given-names>
            </name>
          </person-group>
          <article-title>Prevalence of Metabolic Syndrome among nursing personnel and its association with occupational stress, anxiety and depression</article-title>
          <source>Rev Lat Am Enfermagem</source>
          <year>2015</year>
          <volume>23</volume>
          <issue>3</issue>
          <fpage>435</fpage>
          <lpage>440</lpage>
        </element-citation>
      </ref>
    </ref-list>
  </back>
  <sub-article article-type="translation" id="s1" xml:lang="pt">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Carta ao Editor</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Ansiedade e Depress&#227;o e a sua Rela&#231;&#227;o com a Baixa Qualidade de Vida em Pacientes com S&#237;ndrome Metab&#243;lica</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Silva</surname>
            <given-names>Mariane Lopes da</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Mari</surname>
            <given-names>Mariana Alievi</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff id="aff2">
          <institution content-type="original">Instituto de Cardiologia/Funda&#231;&#227;o Universit&#225;ria de Cardiologia (ICFUC), Porto Alegre, RS - Brasil</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c2"><bold>Correspond&#234;ncia: Mariane Lopes da Silva</bold> Av. Princesa Izabel, 370. CEP 90620-000, Porto Alegre, RS - Brasil E-mail: <email>marianelopes.to@hotmail.com</email>
				</corresp>
      </author-notes>
      <kwd-group xml:lang="pt">
        <title>Palavras-chave</title>
        <kwd>Transtorno Depressivo</kwd>
        <kwd>Estresse Fisiol&#243;gico</kwd>
        <kwd>Depress&#227;o</kwd>
        <kwd>Ansiedade</kwd>
        <kwd>S&#237;ndrome Metab&#243;lica</kwd>
        <kwd>Qualidade de Vida</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <p>
        <bold>Caro Editor,</bold>
      </p>
      <p>Lemos o artigo intitulado "Interven&#231;&#227;o de Estilo de Vida na S&#237;ndrome Metab&#243;lica e seu Impacto na Qualidade de Vida: Um estudo Controlado Randomizado" de Saboya et al.<xref ref-type="bibr" rid="B1">1</xref> com grande interesse e gostar&#237;amos de contribuir com algumas sugest&#245;es.</p>
      <p>Primeiramente com rela&#231;&#227;o ao m&#233;todo. N&#227;o h&#225; relatos a cerca do cegamento dos avaliadores, tanto para as entrevistas como para as medidas de &#237;ndice de massa corporal e circunfer&#234;ncia abdominal. Esse &#233; um fator considerado de alto risco de vi&#233;s pela "Avalia&#231;&#227;o do risco de vi&#233;s de ensaios cl&#237;nicos randomizados pela ferramenta da colabora&#231;&#227;o Cochrane",<xref ref-type="bibr" rid="B2">2</xref> uma vez que o entrevistador, mesmo de forma inconsciente, pode influenciar as respostas e o seu olhar sobre o participante.</p>
      <p>Em segundo com rela&#231;&#227;o aos resultados. Os investigadores relataram que a qualidade de vida dos pacientes com s&#237;ndrome metab&#243;lica &#233; afetada n&#227;o s&#243; pelo quadro cl&#237;nico, mas de forma significativa com a presen&#231;a de depress&#227;o e ansiedade.<xref ref-type="bibr" rid="B1">1</xref> A preval&#234;ncia de depress&#227;o e ansiedade foram 41,7% e 22,2%, respectivamente, e estes dados n&#227;o est&#227;o associados aos componentes da s&#237;ndrome metab&#243;lica.</p>
      <p>A ansiedade e depress&#227;o j&#225; foram muito associadas a quadros de s&#237;ndrome metab&#243;lica quanto a outras doen&#231;as cr&#244;nicas n&#227;o transmiss&#237;veis pela caracter&#237;stica limitadora que a doen&#231;a imp&#245;e a vida dos indiv&#237;duos. No presente estudo n&#227;o foi poss&#237;vel ver esta associa&#231;&#227;o, talvez pelo n&#250;mero de amostra que se caracteriza como sendo muito pequeno para um estudo com tantas etapas e vari&#225;veis para avalia&#231;&#227;o. A perda substancial de sujeitos pode ter comprometido os resultados. A maioria dos estudos<xref ref-type="bibr" rid="B3">3</xref><sup>,</sup><xref ref-type="bibr" rid="B4">4</xref> que associa s&#237;ndrome metab&#243;lica a depress&#227;o e ansiedade, bem como avalia a qualidade de vida desses pacientes, apresenta n&#250;mero de amostra mais expressivos.</p>
    </body>
  </sub-article>
</article>
