Table 1.

Publishing characteristics regarding the total number of publications, references and citations as well as continent of origin over time

	2006–2010	2011–2015	2016–2020
Total number of articles published	153	465	670
References used per article	26 [2–73]	30 [2–158]	31 [1–143]	p < 0.001*
Number of times an article was cited	30 [0–188]	22 [0–264]	6 [0–106]	p < 0.001*

Continent		n		n		n
Europe	56.2%	86	46.9%	218	51.8%	347
Asia	35.3%	54	45.4%	211	36.7%	246
North America	3.9%	6	4.9%	23	9%	60
Others	4.6%	7	2.8%	13	2.5%	37

*Significant results