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<title>The FIBROID Registry--Report of Structure, Methods, and Initial Results, Table 3</title>
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<meta name="Title" content="The FIBROID Registry--Report of Structure, Methods, and Initial Results" />
<meta name="description" content="The Fibroid Registry for Outcomes Data was developed to collect high-quality data on uterine artery embolization." />
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<p><strong>You Are Here:</strong> <span class="crumb_link"><a href="/" class="crumb_link">AHRQ Archive Home</a> &gt; <a href="/research/womenarch.htm" class="crumb_link">Women's Health Archive</a> &gt; <a href="." class="crumb_link">The FIBROID Registry</a> &gt; Table 3</span></p>
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<td height="30px"><span class="title"><a name="h1" id="h1"></a>The FIBROID Registry</span>
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<td><div id="centerContent"><div class="headnote">
<p>This information is for reference purposes only. It was current when produced and may now be outdated. Archive material is no longer maintained, and some links may not work. Persons with disabilities having difficulty accessing this information should contact us at: <a href="https://info.ahrq.gov/">https://info.ahrq.gov</a>. Let us know the nature of the problem, the Web address of what you want, and your contact information. </p>
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<h3>Table 3: Imputations and Coding for Modeling</h3>
<table border="1" cellspacing="0" cellpadding="2" width="100%">
<thead>
<tr valign="bottom">
<th scope="col" width="32%">
<p><strong>Variable</strong></p>
</th>
<th scope="col" width="32%">
<p>Imputation of Missing Data</p>
</th>
<th scope="col" width="36%">
<p><strong>Coding of Variable for Modeling Purposes</strong></p>
</th>
</tr>
</thead>
<tr valign="top">
<td width="32%" rowspan="2">
<p>All continuous variables (age, BMI, length of procedure, uterine volume,
fibroid size)</p>
</td>
<td width="32%">
<p>Imputed as medians of the variable</p>
</td>
<td width="36%">
<p>Value of the variable itself</p>
</td>
</tr>
<tr valign="top">
<td width="32%">&nbsp; </td>
<td width="36%">&nbsp; </td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Number of fibroids</p>
</td>
<td width="32%">
<p>Imputed to 5</p>
</td>
<td width="36%">
<p>Value of the variable itself</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Race</p>
</td>
<td width="32%">
<p>Imputed as Caucasian/other</p>
</td>
<td width="36%">
<p>2 groups for race: Caucasians or others vs. African Americans (reference group)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>History of pregnancy</p>
</td>
<td width="32%">
<p>Used data from variables&#8212;gravida, para, spontaneous abortion, ectopic&#8212;to
define variable. If still missing imputed to &quot;nulligravid&quot;</p>
</td>
<td width="36%">
<p>Nulliparous or nulligravid vs. parous</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Smoking</p>
</td>
<td width="32%">
<p>Imputed as &quot;non smoker&quot;</p>
</td>
<td width="36%">&nbsp; </td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Previous procedures</p>
</td>
<td width="32%">
<p>Imputed to &quot;none&quot;</p>
</td>
<td width="36%">
<p>Any vs. none (ref.) </p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Previous medical therapy</p>
</td>
<td width="32%">
<p>Imputed to &quot;none&quot;</p>
</td>
<td width="36%">
<p>Any vs. none (ref.)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Fibroid morphology</p>
</td>
<td width="32%">
<p>Lumped missing with subserosal &amp; intra/trans mural</p>
</td>
<td width="36%">
<p>Submucosal vs. others (ref.)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Symptoms</p>
</td>
<td width="32%">
<p>Missing lumped with other symptoms </p>
</td>
<td width="36%">
<p>Heavy bleeding, pelvic pain, bulk vs. others (ref)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>DVT prop.</p>
</td>
<td width="32%">
<p>Imputed to &quot;no&quot;</p>
</td>
<td width="36%">
<p>yes vs. no (ref)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Prophylactic antibiotics</p>
</td>
<td width="32%">
<p>Imputed to &quot;no&quot;</p>
</td>
<td width="36%">
<p>yes vs. no (ref)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Vessel embolized</p>
</td>
<td width="32%">
<p>Excluded patients missing or with no vessel embolized</p>
</td>
<td width="36%">
<p>UA bilateral vs. UA single (ref.)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Core site</p>
</td>
<td width="32%">
<p>No requirement</p>
</td>
<td width="36%">
<p>yes vs. no (ref)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Practice type</p>
</td>
<td width="32%">
<p>No requirement</p>
</td>
<td width="36%">
<p>academic vs. other (ref)</p>
</td>
</tr>
<tr valign="top">
<td scope="row" width="32%">
<p>Site experience</p>
</td>
<td width="32%">
<p>Initial no. of cases imputed as 0</p>
</td>
<td width="36%">&nbsp; </td>
</tr>
</table>
<br />
<p class="size2"><a href="fibreg2.htm#Missing">Return to Document</a></p>
<p>&nbsp;</p>
<div class="footnote">
<p> The information on this page is archived and provided for reference purposes only.</p></div>
<p>&nbsp;</p>
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