<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2023000300312</article-id>
<article-id pub-id-type="doi">10.24875/ciru.22000068</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Assessing demographic and socioeconomic factors in patients with advanced colorectal cancer]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación de factores demográficos y socioeconómicos en pacientes con cáncer colorrectal avanzado]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trejo-Avila]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solórzano-Vicuña]]></surname>
<given-names><![CDATA[Danilo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vergara-Fernández]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Department of Colorectal Surgery ]]></institution>
<addr-line><![CDATA[ Mexico City]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>91</volume>
<numero>3</numero>
<fpage>312</fpage>
<lpage>318</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2023000300312&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2023000300312&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2023000300312&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: The aim of the study was to determine the socioeconomic and demographic factors associated with advanced colorectal cancer (CRC) presentation at our institution.  Methods: From January 2009 to January 2018, patients that underwent CRC surgery at our institution were included and retrospectively analyzed. Univariate and multivariate logistic regression were used to determine independent risk factors for presenting with advanced CRC.  Results: A total of 277 patients were included, 53.5% presented with advanced CRC. The multivariate analysis identified that living in a rural area (odds ratio [OR] = 5.25; 95% confidence interval [95% CI]: 2.27-12-10; p &lt; 0.001), weight loss (OR = 2.33; 95% CI: 1.35-4.09; p = 0.002), needing emergency surgery (OR = 4.68; 95% CI: 1.25-17.49; p = 0.022), location in the rectum in comparison with colon (OR = 2.66; 95% CI: 1.44-4.91; p = 0.002), and location in the mid rectum (OR = 6.10; 95% CI: 2.31-16.12; p &lt; 0.001) were associated with higher odds of advanced CRC stage at presentation.  Conclusions: Patients with lower socioeconomic status, with symptoms, and needing emergency surgery were associated with advanced CRC stage at presentation. Special interventions to improve access to care in this population should be planned to enhance CRC outcomes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: El objetivo del presente estudio es determinar los factores socioeconómicos y demográficos asociados con la presentación de cáncer colorrectal (CCR) en etapas avanzadas en nuestra institución.  Métodos: De Enero 2009 a Enero 2018, aquellos pacientes operados por CCR fueron incluidos y analizados de forma retrospectiva. Se realizó análisis de regresión logística para determinar los factores de riesgo independientes para presentar CCR avanzado.  Resultados: Se incluyeron un total de 277 pacientes, de los cuales 53.5% se diagnosticaron con CCR avanzado. En el análisis multivariable: vivienda en zona rural (OR = 5.25; 95% CI: 2.27-12-10; p &lt; 0.001), pérdida de peso (OR = 2.33; 95% CI: 1.35-4.09; p = 0.002), necesidad de cirugía de urgencia (OR = 4.68; 95% CI: 1.25-17.49; p = 0.022), tumores en recto (OR = 2.66; 95% CI: 1.44-4.91; p = 0.002), fueron factores asociados a mayor probabilidad de presentación avanzada del CCR.  Conclusiones: Pacientes con nivel socioeconómico bajo, aquellos que acuden sintomáticos, y los que requieren de inicio cirugía de urgencia, fueron factores asociados a presentaciones avanzadas de CCR. Se requieren intervenciones especiales para mejorar el acceso a un diagnóstico temprano y oportuno en estos grupos poblacionales.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Colorectal cancer]]></kwd>
<kwd lng="en"><![CDATA[Socioeconomic factors]]></kwd>
<kwd lng="en"><![CDATA[Advanced colorectal cancer]]></kwd>
<kwd lng="en"><![CDATA[Health disparities]]></kwd>
<kwd lng="es"><![CDATA[Cáncer colorrectal]]></kwd>
<kwd lng="es"><![CDATA[Factores socioeconómicos]]></kwd>
<kwd lng="es"><![CDATA[Cáncer colorrectal avanzado]]></kwd>
<kwd lng="es"><![CDATA[Disparidades en acceso a la salud]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bray]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ferlay]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Soerjomataram]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Siegel]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Torre]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Jemal]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Global cancer statistics 2018:GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries]]></article-title>
<source><![CDATA[CA Cancer J Clin]]></source>
<year>2018</year>
<volume>68</volume>
<page-range>394-424</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manser]]></surname>
<given-names><![CDATA[CN]]></given-names>
</name>
<name>
<surname><![CDATA[Bauerfeind]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of socioeconomic status on incidence, mortality, and survival of colorectal cancer patients:a systematic review]]></article-title>
<source><![CDATA[Gastrointest Endosc]]></source>
<year>2014</year>
<volume>80</volume>
<page-range>42-60.e9</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Clegg]]></surname>
<given-names><![CDATA[LX]]></given-names>
</name>
<name>
<surname><![CDATA[Reichman]]></surname>
<given-names><![CDATA[ME]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[BA]]></given-names>
</name>
<name>
<surname><![CDATA[Hankey]]></surname>
<given-names><![CDATA[BF]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[GK]]></given-names>
</name>
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[YD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of socioeconomic status on cancer incidence and stage at diagnosis:selected findings from the surveillance, epidemiology, and end results:national Longitudinal Mortality Study]]></article-title>
<source><![CDATA[Cancer Causes Control]]></source>
<year>2009</year>
<volume>20</volume>
<page-range>417-35</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Link]]></surname>
<given-names><![CDATA[BG]]></given-names>
</name>
<name>
<surname><![CDATA[Phelan]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding sociodemographic differences in health-the role of fundamental social causes]]></article-title>
<source><![CDATA[Am J Public Health]]></source>
<year>1996</year>
<volume>86</volume>
<page-range>471-3</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ho]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Kornfield]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Vittinghoff]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Inadomi]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Yee]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Somsouk]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Late presentation of colorectal cancer in a vulnerable population]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2013</year>
<volume>108</volume>
<page-range>466-70</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Xie]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of socioeconomic status on survival of colorectal cancer patients]]></article-title>
<source><![CDATA[Oncotarget]]></source>
<year>2017</year>
<volume>8</volume>
<page-range>106121-31</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Artinyan]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Mailey]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Christopher]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[McKenzie]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An interaction of race and ethnicity with socioeconomic status in rectal cancer outcomes]]></article-title>
<source><![CDATA[Ann Surg]]></source>
<year>2011</year>
<volume>253</volume>
<page-range>647-54</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Faggiano]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Partanen]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Kogevinas]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Boffetta]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Socioeconomic differences in cancer incidence and mortality]]></article-title>
<source><![CDATA[IARC Sci Publ]]></source>
<year>1997</year>
<volume>138</volume>
<page-range>65-176</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Le]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Ziogas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Lipkin]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Zell]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of socioeconomic status and treatment disparities in colorectal cancer survival]]></article-title>
<source><![CDATA[Cancer Epidemiol Biomarkers Prev]]></source>
<year>2008</year>
<volume>17</volume>
<page-range>1950-62</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Du]]></surname>
<given-names><![CDATA[XL]]></given-names>
</name>
<name>
<surname><![CDATA[Meyer]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
<name>
<surname><![CDATA[Franzini]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Meta-analysis of racial disparities in survival in association with socioeconomic status among men and women with colon cancer]]></article-title>
<source><![CDATA[Cancer]]></source>
<year>2007</year>
<volume>109</volume>
<page-range>2161-70</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marcella]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Racial differences in colorectal cancer mortality. The importance of stage and socioeconomic status]]></article-title>
<source><![CDATA[J Clin Epidemiol]]></source>
<year>2001</year>
<volume>54</volume>
<page-range>359-66</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hoffman-Goetz]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Breen]]></surname>
<given-names><![CDATA[NL]]></given-names>
</name>
<name>
<surname><![CDATA[Meissner]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The impact of social class on the use of cancer screening within three racial/ethnic groups in the United States]]></article-title>
<source><![CDATA[Ethn Dis]]></source>
<year>1998</year>
<volume>8</volume>
<page-range>43-51</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Polite]]></surname>
<given-names><![CDATA[BN]]></given-names>
</name>
<name>
<surname><![CDATA[Dignam]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Olopade]]></surname>
<given-names><![CDATA[OI]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Colorectal cancer model of health disparities:understanding mortality differences in minority populations]]></article-title>
<source><![CDATA[J Clin Oncol]]></source>
<year>2006</year>
<volume>24</volume>
<page-range>2179-87</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cairns]]></surname>
<given-names><![CDATA[AL]]></given-names>
</name>
<name>
<surname><![CDATA[Schlottmann]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Strassle]]></surname>
<given-names><![CDATA[PD]]></given-names>
</name>
<name>
<surname><![CDATA[Di Corpo]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Patti]]></surname>
<given-names><![CDATA[MG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Racial and Socioeconomic disparities in the surgical management and outcomes of patients with colorectal carcinoma]]></article-title>
<source><![CDATA[World J Surg]]></source>
<year>2019</year>
<volume>43</volume>
<page-range>1342-50</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reynoso-Noverón]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Meneses-García]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Erazo-Valle]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Escudero-de Los Ríos]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Kuri-Morales]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
<name>
<surname><![CDATA[Mohar-Betancourt]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Challenges in the development and implementation of the National Comprehensive Cancer Control Program in Mexico]]></article-title>
<source><![CDATA[Salud Publica Mex]]></source>
<year>2016</year>
<volume>58</volume>
<page-range>325-33</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Carrillo]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Sánchez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[López-Cervantes]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rueda-Neria]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Identification of malignant breast lesions in Mexico]]></article-title>
<source><![CDATA[Salud Publica Mex]]></source>
<year>2001</year>
<volume>43</volume>
<page-range>199-202</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Palacio-Mejía]]></surname>
<given-names><![CDATA[LS]]></given-names>
</name>
<name>
<surname><![CDATA[Rangel-Gómez]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Avila]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Lazcano-Ponce]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cervical cancer, a disease of poverty:mortality differences between urban and rural areas in Mexico]]></article-title>
<source><![CDATA[Salud Publica Mex]]></source>
<year>2003</year>
<volume>45 Suppl 3</volume>
<page-range>S315-25</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rex]]></surname>
<given-names><![CDATA[DK]]></given-names>
</name>
<name>
<surname><![CDATA[Boland]]></surname>
<given-names><![CDATA[CR]]></given-names>
</name>
<name>
<surname><![CDATA[Dominitz]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Giardiello]]></surname>
<given-names><![CDATA[FM]]></given-names>
</name>
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Kaltenbach]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Colorectal cancer screening:recommendations for physicians and patients from the U. S. Multi-Society task force on colorectal cancer]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2017</year>
<volume>112</volume>
<page-range>1016-30</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Amin]]></surname>
<given-names><![CDATA[MB]]></given-names>
</name>
<name>
<surname><![CDATA[Edge]]></surname>
<given-names><![CDATA[SB]]></given-names>
</name>
<name>
<surname><![CDATA[Greene]]></surname>
<given-names><![CDATA[FL]]></given-names>
</name>
<name>
<surname><![CDATA[Gershenwald]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Brookland]]></surname>
<given-names><![CDATA[RK]]></given-names>
</name>
<name>
<surname><![CDATA[Meyer]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Colorectal cancer]]></article-title>
<source><![CDATA[AJCC Cancer Staging]]></source>
<year>2017</year>
<edition>8th ed</edition>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Vernon]]></surname>
<given-names><![CDATA[SW]]></given-names>
</name>
<name>
<surname><![CDATA[Franzini]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Du]]></surname>
<given-names><![CDATA[XL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Racial disparities in colorectal cancer survival:to what extent are racial disparities explained by differences in treatment, tumor characteristics, or hospital characteristics?]]></article-title>
<source><![CDATA[Cancer]]></source>
<year>2010</year>
<volume>116</volume>
<page-range>4622-31</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torres-Cintrón]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz]]></surname>
<given-names><![CDATA[AP]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz-Ortiz]]></surname>
<given-names><![CDATA[KJ]]></given-names>
</name>
<name>
<surname><![CDATA[Figueroa-Vallés]]></surname>
<given-names><![CDATA[NR]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Irizarry]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz-Medina]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using a socioeconomic position index to assess disparities in cancer incidence and mortality, Puerto Rico, 1995-2004]]></article-title>
<source><![CDATA[Prev Chronic Dis]]></source>
<year>2012</year>
<volume>9</volume>
<page-range>E15</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Doubeni]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Major]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Laiyemo]]></surname>
<given-names><![CDATA[AO]]></given-names>
</name>
<name>
<surname><![CDATA[Schootman]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Zauber]]></surname>
<given-names><![CDATA[AG]]></given-names>
</name>
<name>
<surname><![CDATA[Hollenbeck]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Contribution of behavioral risk factors and obesity to socioeconomic differences in colorectal cancer incidence]]></article-title>
<source><![CDATA[J Natl Cancer Inst]]></source>
<year>2012</year>
<volume>104</volume>
<page-range>1353-62</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leiva]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Esteva]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Llobera]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[MaciàF]]></surname>
</name>
<name>
<surname><![CDATA[Pita-Fernández]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[González-Luján]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Time to diagnosis and stage of symptomatic colorectal cancer determined by three different sources of information:a population based retrospective study]]></article-title>
<source><![CDATA[Cancer Epidemiol]]></source>
<year>2017</year>
<volume>47</volume>
<page-range>48-55</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Droste]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Oort]]></surname>
<given-names><![CDATA[FA]]></given-names>
</name>
<name>
<surname><![CDATA[van der Hulst]]></surname>
<given-names><![CDATA[RW]]></given-names>
</name>
<name>
<surname><![CDATA[Coupé]]></surname>
<given-names><![CDATA[VM]]></given-names>
</name>
<name>
<surname><![CDATA[Craanen]]></surname>
<given-names><![CDATA[ME]]></given-names>
</name>
<name>
<surname><![CDATA[Meijer]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Does delay in diagnosing colorectal cancer in symptomatic patients affect tumor stage and survival?]]></article-title>
<source><![CDATA[A population-based observational study, BMC Cancer]]></source>
<year>2010</year>
<volume>10</volume>
<page-range>332</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Mittal]]></surname>
<given-names><![CDATA[PK]]></given-names>
</name>
<name>
<surname><![CDATA[Sullivan]]></surname>
<given-names><![CDATA[PS]]></given-names>
</name>
<name>
<surname><![CDATA[Rutherford]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Staley]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Cardona]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Colorectal cancer initial diagnosis:screening colonoscopy, diagnostic colonoscopy, or emergent surgery, and tumor stage and size at initial presentation]]></article-title>
<source><![CDATA[Clin Colorectal Cancer]]></source>
<year>2016</year>
<volume>15</volume>
<page-range>67-73</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[DP]]></given-names>
</name>
<name>
<surname><![CDATA[Cannon-Albright]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Sweeney]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[MS]]></given-names>
</name>
<name>
<surname><![CDATA[Haug]]></surname>
<given-names><![CDATA[PJ]]></given-names>
</name>
<name>
<surname><![CDATA[Mitchell]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of compliance for colorectal cancer screening and surveillance by colonoscopy based on risk]]></article-title>
<source><![CDATA[Genet Med]]></source>
<year>2011</year>
<volume>13</volume>
<page-range>737-43</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smothers]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Hynan]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Fleming]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Turnage]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Simmang]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Anthony]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emergency surgery for colon carcinoma]]></article-title>
<source><![CDATA[Dis Colon Rectum]]></source>
<year>2003</year>
<volume>46</volume>
<page-range>24-30</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez-Dantés]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Lamadrid-Figueroa]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Cahuana-Hurtado]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Silverman-Retana]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Montero]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[González-Robledo]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The burden of cancer in Mexico, 1990-2013]]></article-title>
<source><![CDATA[Salud Publica Mex]]></source>
<year>2016</year>
<volume>58</volume>
<page-range>118-31</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quezada-Gutiérrez]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Bañuelos]]></surname>
<given-names><![CDATA[MT]]></given-names>
</name>
<name>
<surname><![CDATA[Morales-Romero]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Sampieri]]></surname>
<given-names><![CDATA[CL]]></given-names>
</name>
<name>
<surname><![CDATA[Guzmán-García]]></surname>
<given-names><![CDATA[RE]]></given-names>
</name>
<name>
<surname><![CDATA[Montes-Villaseñor]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Factors associated with the survival of colorectal cancer in Mexico]]></article-title>
<source><![CDATA[Intest Res]]></source>
<year>2020</year>
<volume>18</volume>
<page-range>315-24</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
