Table 3. Meta-analysis of six studies of RPELN metastasis in PTC.
| Author | Year | Country | Study period | Study design | Patients n |
Prevalence of RPELN metastasis % |
|---|---|---|---|---|---|---|
| Zhang et al. | 2016 | China | Sep 2010–Aug 2013 | Retrospective | 246 | 13.4 |
| Pinyi et al. | 2014 | China | Jan 2010–Jun 2012 | Retrospective | 405 | 26.7 |
| Ito et al. | 2013 | Japan | Jan 2004–Dec 2009 | Retrospective | 922 | 13.8 |
| Kim and Park | 2012 | Korea | Apr 2008–Jan 2010 | Retrospective | 243 | 5.8 |
| Bae et al. | 2012 | Korea | Aug 2008–Jan 2010 | Retrospective | 369 | 12.2 |
| Lee et al. | 2009 | Korea | Mar 2007–Feb 2008 | Retrospective | 123 | 11.4 |
RPELN, right paraesophageal lymph node.