Gut microbiota and autism spectrum disorders: where do we stand?

Table 1 Top 10 countries most productive in terms of relevant articles related to gut microbiota and autism spectrum disorders from 2003 to 2022

Ranking	Country	No. of documents	% ^a
1st	United States	267	27.87
2nd	China	171	17.85
3rd	Italy	96	10.02
4th	Canada	52	5.43
5th	United Kingdom	49	5.11
6th	Spain	40	4.18
7th	South Korea	37	3.86
8th	Australia	35	3.65
9th	Poland	34	3.55
10th	Saudi Arabia	33	3.44

^a The variance between the 74.2% mentioned in the text and the sum of 84.96% in Table 1 can be attributed to the phenomenon of overlapping research productivity among countries. This overlap occurs when researchers from different countries collaborate on research projects or when the same research output is attributed to multiple countries

ISSN: 1757-4749