Pubmed API returns less results than web interface

Question

I'm trying to access Pubmed results via R using their API, but I consistently get fewer results than what the same query achieves when used with the web interface. By digging in the output I noticed that the problem lays in a different query translation between the two access methods.

I am using the rentrez package, but the results I get are the same also with other related rpackages, so I guess it's related to the API itself.

here's the code to reproduce the results:

install.packages('rentrez')

rentrez::entrez_search(db="pubmed", term = '((model OR models OR modeling OR network OR networks) AND (dissemination OR transmission OR spread OR diffusion) AND (nosocomial OR hospital OR "long-term-care" OR "long term care" OR "longterm care" OR "long-term care" OR "hospital acquired" OR "healtcare associated") AND (infection OR resistance OR resistant)) AND (2010[PDAT]:2020[PDAT])')$count

[1] 7157

The same query on https://pubmed.ncbi.nlm.nih.gov/ returns 9263 results.

question from:https://stackoverflow.com/questions/65830663/pubmed-api-returns-less-results-than-web-interface

Answer 1

Waitting for answers