<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v2.0 20040830//EN" "journalpublishing.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="2.0" xml:lang="en" article-type="reviewer-report"><front><journal-meta><journal-id journal-id-type="nlm-ta">JMIRx Med</journal-id><journal-id journal-id-type="publisher-id">xmed</journal-id><journal-id journal-id-type="index">34</journal-id><journal-title>JMIRx Med</journal-title><abbrev-journal-title>JMIRx Med</abbrev-journal-title><issn pub-type="epub">2563-6316</issn></journal-meta><article-meta><article-id pub-id-type="publisher-id">54011</article-id><article-id pub-id-type="doi">10.2196/54011</article-id><title-group><article-title>Peer Review of &#x201C;Predicting Waist Circumference From a Single Computed Tomography Image Using a Mobile App (Measure It): Development and Evaluation Study&#x201D;</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Hadrich</surname><given-names>Zied</given-names></name><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff id="aff1"><institution>Department of Surgery, Faculty of Medicine of Tunis</institution>, <addr-line>Tunis</addr-line>, <country>Tunisia</country></aff><contrib-group><contrib contrib-type="editor"><name name-style="western"><surname>Meinert</surname><given-names>Edward</given-names></name></contrib></contrib-group><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>12</day><month>12</month><year>2023</year></pub-date><volume>4</volume><elocation-id>e54011</elocation-id><history><date date-type="received"><day>26</day><month>10</month><year>2023</year></date><date date-type="accepted"><day>26</day><month>10</month><year>2023</year></date></history><copyright-statement>&#x00A9; Zied Hadrich. Originally published in JMIRx Med (<ext-link ext-link-type="uri" xlink:href="https://med.jmirx.org">https://med.jmirx.org</ext-link>), 12.12.2023. </copyright-statement><copyright-year>2023</copyright-year><license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIRx Med, is properly cited. The complete bibliographic information, a link to the original publication on <ext-link ext-link-type="uri" xlink:href="https://med.jmirx.org/">https://med.jmirx.org/</ext-link>, as well as this copyright and license information must be included.</p></license><self-uri xlink:type="simple" xlink:href="https://xmed.jmir.org/2023/1/e54011"/><related-article related-article-type="companion" ext-link-type="doi" xlink:href="11/10/2023:38852" xlink:title="Preprint (JMIR Preprints)" xlink:type="simple">https://preprints.jmir.org/preprint/38852</related-article><related-article related-article-type="companion" ext-link-type="doi" xlink:href="10.2196/53817" xlink:title="Authors' Response to Peer-Review Reports" xlink:type="simple">https://med.jmirx.org/2023/1/e53817</related-article><related-article related-article-type="companion" ext-link-type="doi" xlink:href="10.2196/38852" xlink:title="Published Article" xlink:type="simple">https://med.jmirx.org/2023/1/e38852</related-article><kwd-group><kwd>waist circumference</kwd><kwd>computed tomography</kwd><kwd>abdominal CT</kwd><kwd>mobile health</kwd><kwd>health apps</kwd><kwd>CT</kwd><kwd>CT scan</kwd><kwd>CT image</kwd><kwd>mobile app</kwd><kwd>app</kwd><kwd>application</kwd><kwd>waist</kwd><kwd>body</kwd><kwd>body mass</kwd><kwd>BMI</kwd><kwd>morbidity</kwd><kwd>mortality</kwd><kwd>clinical</kwd><kwd>tool</kwd><kwd>prototype</kwd><kwd>design</kwd><kwd>obesity</kwd><kwd>abdominal</kwd><kwd>usability</kwd><kwd>validity</kwd><kwd>medical</kwd></kwd-group></article-meta></front><body><sec id="s1"><title/><p><italic>This is a peer-review report submitted for the paper &#x201C;Predicting Waist Circumference From a Single Computed Tomography Image Using a Mobile App (Measure It): Development and Evaluation Study.&#x201D;</italic></p></sec><sec id="s2"><title>Round 1 Review</title><p>This manuscript [<xref ref-type="bibr" rid="ref1">1</xref>] is well written.</p><p>This paper presents an original idea to simplify patient care. It can be generalized to other specialties.</p><p>No specific comments.</p><sec id="s1-1"><title>Major Comment</title><p>This mobile app could be used for other measurements.</p></sec></sec></body><back><fn-group><fn fn-type="conflict"><p>None declared.</p></fn></fn-group><ref-list><title>References</title><ref id="ref1"><label>1</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Masmoudi</surname><given-names>A</given-names></name><name name-style="western"><surname>Zouari</surname><given-names>A</given-names></name><name name-style="western"><surname>Bouzid</surname><given-names>A</given-names></name><etal/></person-group><article-title>Predicting waist circumference from a single computed tomography image using a mobile app (Measure It): development and evaluation study</article-title><source>JMIRx Med</source><year>2023</year><volume>4</volume><fpage>e38852</fpage><pub-id pub-id-type="doi">10.2196/38852</pub-id></nlm-citation></ref></ref-list></back></article>