<?xml version="1.0" encoding="utf-8"?>
<journal>
<title>Iranian Journal of Epidemiology</title>
<title_fa>مجله اپیدمیولوژی ایران</title_fa>
<short_title>irje</short_title>
<subject>Medical Sciences</subject>
<web_url>http://irje.tums.ac.ir</web_url>
<journal_hbi_system_id>1</journal_hbi_system_id>
<journal_hbi_system_user>admin</journal_hbi_system_user>
<journal_id_issn>1735-7489</journal_id_issn>
<journal_id_issn_online>2228-7507</journal_id_issn_online>
<journal_id_pii>000</journal_id_pii>
<journal_id_doi>000</journal_id_doi>
<journal_id_iranmedex></journal_id_iranmedex>
<journal_id_magiran></journal_id_magiran>
<journal_id_sid>000</journal_id_sid>
<journal_id_nlai>000</journal_id_nlai>
<journal_id_science>000</journal_id_science>
<language>fa</language>
<pubdate>
	<type>jalali</type>
	<year>1393</year>
	<month>3</month>
	<day>1</day>
</pubdate>
<pubdate>
	<type>gregorian</type>
	<year>2014</year>
	<month>6</month>
	<day>1</day>
</pubdate>
<volume>10</volume>
<number>1</number>
<publish_type>online</publish_type>
<publish_edition>1</publish_edition>
<article_type>fulltext</article_type>
<articleset>
	<article>


	<language>fa</language>
	<article_id_doi></article_id_doi>
	<title_fa>به کارگیری مدل‌های رگرسیون لجستیک ترتیبی در مطالعات کیفیت زندگی</title_fa>
	<title>Application of the Ordinal Logistic Regression Models in Quality of life Studies</title>
	<subject_fa>عمومى</subject_fa>
	<subject>General</subject>
	<content_type_fa>پژوهشي</content_type_fa>
	<content_type>Research</content_type>
	<abstract_fa>&lt;div style=&quot;BORDER-BOTTOM: windowtext 1pt solid BORDER-LEFT: medium none PADDING-BOTTOM: 1pt PADDING-LEFT: 0cm PADDING-RIGHT: 0cm MARGIN-LEFT: 0cm BORDER-TOP: windowtext 1pt solid MARGIN-RIGHT: 87.6pt BORDER-RIGHT: medium none PADDING-TOP: 1pt mso-element: para-border-div mso-border-top-alt: solid windowtext .5pt mso-border-bottom-alt: solid windowtext .5pt&quot;&gt;&lt;p class=&quot;IJE-F-Abstract&quot; style=&quot;BORDER-BOTTOM: medium none BORDER-LEFT: medium none PADDING-BOTTOM: 0cm MARGIN: 0cm 0cm 0pt PADDING-LEFT: 0cm PADDING-RIGHT: 0cm BORDER-TOP: medium none BORDER-RIGHT: medium none PADDING-TOP: 0cm mso-border-top-alt: solid windowtext .5pt mso-border-bottom-alt: solid windowtext .5pt mso-hyphenate: auto mso-padding-alt: 1.0pt 0cm 1.0pt 0cm&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;مقدمه و اهداف&lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;: &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;با توجه به افزایش گرایش به سنجش کیفیت زندگی در سال&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های اخیر و حجم گسترده پرسشنامه&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های کیفیت زندگی،&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt; تعیین روش مناسب به منظور تجزیه و تحلیل داده‌های مربوط به این مطالعات ضروری به نظر می‌رسد&lt;/span&gt;&lt;span dir=&quot;ltr&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;X-NONE&quot; style=&quot;FONT-SIZE: 10pt mso-bidi-font-family: &#039;B Nazanin&#039;&quot; dir=&quot;ltr&quot;&gt;&lt;span dir=&quot;ltr&quot;&gt;&lt;/span&gt;&lt;font face=&quot;Tw Cen MT&quot;&gt;.&lt;/font&gt;&lt;/span&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt;&lt;span lang=&quot;X-NONE&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;&lt;span dir=&quot;rtl&quot;&gt;&lt;/span&gt; &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;هدف مطالعه حاضر، معرفی مدل&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های رگرسیون لجستیک ترتیبی به منظور تجزیه و تحلیل داده&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های کیفیت زندگی &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;می&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;باشد&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;.&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;&lt;p&gt;&lt;/p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;IJE-F-Abstract&quot; style=&quot;BORDER-BOTTOM: medium none BORDER-LEFT: medium none PADDING-BOTTOM: 0cm MARGIN: 0cm 0cm 0pt PADDING-LEFT: 0cm PADDING-RIGHT: 0cm BORDER-TOP: medium none BORDER-RIGHT: medium none PADDING-TOP: 0cm mso-border-top-alt: solid windowtext .5pt mso-border-bottom-alt: solid windowtext .5pt mso-hyphenate: auto mso-padding-alt: 1.0pt 0cm 1.0pt 0cm&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;روش کار: &lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;داده&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;های این مطالعه مقطعی برگرفته از اطلاعات مطالعه&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;ای در زمینه بررسی کیفیت زندگی &lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;938&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt; دانش آموز انجام شده است. برای تحلیل داده&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;ها نتایج دو مدل رگرسیون لجستیک دوحالتی &lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;و مدل‌های رگرسیون لجستیک ترتیبی &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;با هم مقایسه شده است.&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;&lt;p&gt;&lt;/p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;IJE-F-Abstract&quot; style=&quot;BORDER-BOTTOM: medium none BORDER-LEFT: medium none PADDING-BOTTOM: 0cm MARGIN: 0cm 0cm 0pt PADDING-LEFT: 0cm PADDING-RIGHT: 0cm BORDER-TOP: medium none BORDER-RIGHT: medium none PADDING-TOP: 0cm mso-border-top-alt: solid windowtext .5pt mso-border-bottom-alt: solid windowtext .5pt mso-hyphenate: auto mso-padding-alt: 1.0pt 0cm 1.0pt 0cm&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;نتایج: &lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;نتایج آزمون نیکویی برازش نشان داد که هر سه مدل به خوبی برازش شده بود. بر اساس برازش مدل&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های &lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;رگرسیون لجستیک ترتیبی &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;سه متغیر از متغیر&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های توضیحی از نظر آماری با پاسخ مرتبط بودند در حالیکه بر اساس برازش مدل رگرسیون لجستیک &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-bidi-language: FA&quot;&gt;دوحالتی &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;که پس از ترکیب دو طبقۀ متغیر پاسخ تنها دو متغیر معنی&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;دار بود. بنابراین باید تا حد امکان از ترکیب کردن طبقه&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های متغیر پاسخ خودداری نمود، زیرا این امر منجر به از دست رفتن اطلاعات می&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;شود&lt;b&gt;.&lt;/b&gt;&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;&lt;p&gt;&lt;/p&gt;&lt;/span&gt;&lt;/p&gt;&lt;p class=&quot;IJE-F-Abstract&quot; style=&quot;BORDER-BOTTOM: medium none BORDER-LEFT: medium none PADDING-BOTTOM: 0cm MARGIN: 0cm 0cm 0pt PADDING-LEFT: 0cm PADDING-RIGHT: 0cm BORDER-TOP: medium none BORDER-RIGHT: medium none PADDING-TOP: 0cm mso-border-top-alt: solid windowtext .5pt mso-border-bottom-alt: solid windowtext .5pt mso-hyphenate: auto mso-padding-alt: 1.0pt 0cm 1.0pt 0cm&quot; dir=&quot;rtl&quot;&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;نتیجه&lt;/span&gt;&lt;/b&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ansi-language: EN-US&quot;&gt;‌&lt;/span&gt;&lt;/b&gt;&lt;b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;گیری: &lt;/span&gt;&lt;/b&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-fareast-font-family: &#039;Times New Roman&#039;&quot;&gt;به طور کلی می‌توان گفت برای تجزیه و تحلیل داده‌های کیفیت زندگی به دلیل ماهیت متغیر پاسخ، &lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;مدل&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039;&quot;&gt;‌&lt;/span&gt;&lt;span lang=&quot;FA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-ascii-font-family: &#039;Times New Roman&#039; mso-hansi-font-family: &#039;Times New Roman&#039; mso-bidi-language: FA&quot;&gt;های &lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt&quot;&gt;رگرسیون لجستیک ترتیبی&lt;/span&gt;&lt;span lang=&quot;AR-SA&quot; style=&quot;FONT-FAMILY: &quot;B Nazanin&quot; FONT-SIZE: 10pt mso-fareast-font-family: &#039;Times New Roman&#039;&quot;&gt; با توجه به برآورد پارامترهای کمتر و سهولت تفسیر نتایج، مناسب می‌باشند.&lt;/span&gt;&lt;span style=&quot;FONT-SIZE: 10pt mso-fareast-font-family: &#039;Times New Roman&#039; mso-ansi-language: EN-US mso-bidi-font-family: &#039;B Nazanin&#039;&quot; dir=&quot;ltr&quot;&gt;&lt;p&gt;&lt;/p&gt;&lt;/span&gt;&lt;/p&gt;&lt;/div&gt;</abstract_fa>
	<abstract>&lt;p&gt; &lt;/p&gt;&lt;p class=&quot;IJE-E-Authorsaffiliation&quot; style=&quot;MARGIN: 0cm 0cm 6pt&quot;&gt;&lt;font face=&quot;Tw Cen MT&quot;&gt;&lt;b&gt;&lt;span style=&quot;mso-bidi-font-size: 11.0pt&quot;&gt;Background &amp; Objectives&lt;/span&gt;&lt;/b&gt;&lt;span style=&quot;mso-bidi-font-size: 11.0pt&quot;&gt;: &lt;/span&gt;&lt;span style=&quot;FONT-SIZE: 11pt&quot;&gt;Due to the increasing tendency to measure the quality of life in recent years and the extensive quality of life questionnaires, it is important to determine the appropriate method of analyzing data derived from these studies. The aim of the present study was to introduce ordinal logistic regression models as an appropriate method for analyzing the data of quality of life.&lt;/span&gt;&lt;span style=&quot;FONT-FAMILY: &quot;Times New Roman&quot;,&quot;serif&quot;&quot;&gt;&lt;p&gt;&lt;/p&gt;&lt;/span&gt;&lt;/font&gt;&lt;/p&gt;&lt;p class=&quot;IJE-E-Authorsaffiliation&quot; style=&quot;TEXT-ALIGN: justify MARGIN: 0cm 0cm 12pt&quot;&gt;&lt;font face=&quot;Tw Cen MT&quot;&gt;&lt;b&gt;&lt;span style=&quot;FONT-SIZE: 11pt&quot;&gt;Methods:&lt;/span&gt;&lt;/b&gt; &lt;span style=&quot;FONT-SIZE: 11pt&quot;&gt;The data was derived from a cross-sectional study on quality of life survey of 938 students. For data analysis, two binary logistic regression models and ordinal logistic regression models were used and the results of these models were compared.&lt;p&gt;&lt;/p&gt;&lt;/span&gt;&lt;/font&gt;&lt;/p&gt;&lt;p class=&quot;maghale&quot; style=&quot;TEXT-ALIGN: justify LINE-HEIGHT: normal MARGIN: 0cm 0cm 12pt unicode-bidi: embed DIRECTION: ltr&quot;&gt;&lt;font size=&quot;3&quot;&gt;&lt;b&gt;&lt;span style=&quot;FONT-FAMILY: &quot;Tw Cen MT&quot;,&quot;sans-serif&quot; mso-fareast-font-family: &#039;Times New Roman&#039; mso-bidi-language: AR-SA mso-bidi-font-family: &#039;2  Lotus&#039; mso-bidi-font-size: 11.0pt&quot;&gt;Results:&lt;/span&gt;&lt;/b&gt;&lt;b&gt;&lt;span style=&quot;mso-bidi-font-size: 11.0pt&quot;&gt;&lt;font face=&quot;Calibri&quot;&gt; &lt;/font&gt;&lt;/span&gt;&lt;/b&gt;&lt;span style=&quot;FONT-FAMILY: &quot;Tw Cen MT&quot;,&quot;sans-serif&quot; mso-fareast-font-family: &#039;Times New Roman&#039; mso-bidi-language: AR-SA mso-bidi-font-family: &#039;2  Lotus&#039; mso-bidi-font-size: 11.0pt&quot;&gt;The results of goodness of fit showed that all three models were fitted well. Based on the ordinal logistic regression models, the three variables out of the explanatory variables were statistically associated with the response while based on the binary logistic regression model, after combining two categories of response variable, only two variables were significant.&lt;/span&gt;&lt;font face=&quot;Calibri&quot;&gt; &lt;/font&gt;&lt;span style=&quot;FONT-FAMILY: &quot;Tw Cen MT&quot;,&quot;sans-serif&quot; mso-fareast-font-family: &#039;Times New Roman&#039; mso-bidi-language: AR-SA mso-bidi-font-family: &#039;2  Lotus&#039; mso-bidi-font-size: 11.0pt&quot;&gt;Therefore, combining the categories of the response variable should be avoided as much as possible because it may lead to data loss due to ignoring some of the response categories.&lt;p&gt;&lt;/p&gt;&lt;/span&gt;&lt;/font&gt;&lt;/p&gt;&lt;p&gt;&lt;b&gt;&lt;span style=&quot;FONT-FAMILY: &quot;Tw Cen MT&quot;,&quot;sans-serif&quot; FONT-SIZE: 11pt mso-fareast-font-family: &#039;Times New Roman&#039; mso-ansi-language: EN-US mso-fareast-language: EN-US mso-bidi-language: AR-SA mso-bidi-font-family: &#039;2  Lotus&#039;&quot;&gt;Conclusion&lt;/span&gt;&lt;/b&gt;&lt;span style=&quot;FONT-FAMILY: &quot;Calibri&quot;,&quot;sans-serif&quot; FONT-SIZE: 11pt mso-fareast-font-family: &#039;Times New Roman&#039; mso-ansi-language: EN-US mso-fareast-language: EN-US mso-bidi-language: FA mso-bidi-font-family: Arial&quot;&gt;: &lt;/span&gt;&lt;span style=&quot;FONT-FAMILY: &quot;Tw Cen MT&quot;,&quot;sans-serif&quot; FONT-SIZE: 11pt mso-fareast-font-family: &#039;Times New Roman&#039; mso-ansi-language: EN-US mso-fareast-language: EN-US mso-bidi-language: AR-SA mso-bidi-font-family: &#039;2  Lotus&#039;&quot;&gt;It is concluded that to analyze quality of life data, due to the nature of the response variable, ordinal logistic regression models are recommended considering the fewer parameter estimates and easier interpretation of the results&lt;/span&gt;&lt;/p&gt;</abstract>
	<keyword_fa>کیفیت زندگی, مدل‌های رگرسیون لجستیک ترتیبی, مدل رگرسیون لجستیک Binary</keyword_fa>
	<keyword>Quality of life, Ordinal logistic regression models, Binary Logistic Regression Model</keyword>
	<start_page>15</start_page>
	<end_page>24</end_page>
	<web_url>http://irje.tums.ac.ir/browse.php?a_code=A-10-25-5060&amp;slc_lang=fa&amp;sid=1</web_url>


<author_list>
	<author>
	<first_name>Z</first_name>
	<middle_name></middle_name>
	<last_name>Asadollahi</last_name>
	<suffix></suffix>
	<first_name_fa>زهرا</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa>اسداللهی</last_name_fa>
	<suffix_fa></suffix_fa>
	<email>asadollahi.zahra@gmail.com</email>
	<code></code>
	<orcid></orcid>
	<coreauthor>Yes
</coreauthor>
	<affiliation></affiliation>
	<affiliation_fa>دانشکده پزشکی، دانشگاه علوم پزشکی رفسنجان</affiliation_fa>
	 </author>


	<author>
	<first_name>P</first_name>
	<middle_name></middle_name>
	<last_name>Jafari</last_name>
	<suffix></suffix>
	<first_name_fa>پیمان</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa>جعفری</last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code></code>
	<orcid></orcid>
	<coreauthor>No</coreauthor>
	<affiliation></affiliation>
	<affiliation_fa> دانشکده پزشکی، دانشگاه علوم پزشکی شیراز</affiliation_fa>
	 </author>


	<author>
	<first_name>M</first_name>
	<middle_name></middle_name>
	<last_name>Rezaeian</last_name>
	<suffix></suffix>
	<first_name_fa>محسن</first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa>رضائیان</last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code></code>
	<orcid></orcid>
	<coreauthor>No</coreauthor>
	<affiliation></affiliation>
	<affiliation_fa>دانشکده پزشکی، دانشگاه علوم پزشکی رفسنجان</affiliation_fa>
	 </author>


</author_list>


	</article>
</articleset>
</journal>
