Example table with two tgroup elements (columns and widths change)
The example shows two tgroup groups in a single table.
XML
<table id="med-9780199204854-chapter-1-table-22" colsep="0" rowsep="0">
<titleGroup><title>
<p>
<enumerator>Table 22.4.3.6</enumerator> Prognostic factors for advanced Hodgkin’s
lymphoma</p></title>
</titleGroup>
<tgroup cols="2"><colspec colnum="1" colname="col1"/><colspec colnum="2" colname="col2"/><thead>
<row rowsep="1">
<entry namest="col1" nameend="col2" align="left">
<p>Adverse prognostic factors</p>
</entry>
</row></thead><tbody>
<row rowsep="1">
<entry colname="col1" align="left">
<p>Age</p>
</entry>
<entry colname="col2" align="left">
<p>≥45 years</p>
</entry>
</row></tbody>
</tgroup>
<tgroup cols="3"><colspec colnum="1" colname="col1"/><colspec colnum="2" colname="col2"/><colspec colnum="3" colname="col3"/><thead>
<row rowsep="1">
<entry namest="col1" nameend="col3" align="left">
<p>Outcome according to prognostic score</p>
</entry>
</row>
<row rowsep="1">
<entry colname="col1" align="left">
<p>Number of factors</p>
</entry>
<entry colname="col2" align="left">
<p>5-year freedom from progression (%)</p>
</entry>
<entry colname="col3" align="left">
<p>5-year overall survival (%)</p>
</entry>
</row></thead><tbody>
<row rowsep="1">
<entry colname="col1" align="left">
<p>0</p>
</entry>
<entry colname="col2" align="left">
<p>84</p>
</entry>
<entry colname="col3" align="left">
<p>89</p>
</entry>
</row></tbody>
</tgroup>
</table>