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PMC:7781502 / 146-1612 JSONTXT

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LitCovid-PubTator

Id Subject Object Predicate Lexical cue tao:has_database_id
6 30-54 Disease denotes coronavirus disease 2019 MESH:C000657245
7 56-64 Disease denotes COVID-19 MESH:C000657245
8 180-188 Disease denotes COVID-19 MESH:C000657245
9 307-315 Disease denotes COVID-19 MESH:C000657245
15 646-651 Species denotes Human Tax:9606
16 361-369 Disease denotes COVID-19 MESH:C000657245
17 671-674 Disease denotes HDI
18 689-697 Disease denotes COVID-19 MESH:C000657245
19 708-714 Disease denotes deaths MESH:D003643
26 888-935 Species denotes severe acute respiratory syndrome coronavirus 2 Tax:2697049
27 937-947 Species denotes SARS-CoV-2 Tax:2697049
28 949-958 Disease denotes infection MESH:D007239
29 1179-1187 Disease denotes COVID-19 MESH:C000657245
30 1204-1207 Disease denotes HDI
31 1259-1265 Disease denotes deaths MESH:D003643
34 1455-1465 Species denotes SARS-CoV-2 Tax:2697049
35 1313-1321 Disease denotes COVID-19 MESH:C000657245

LitCovid-sentences

Id Subject Object Predicate Lexical cue
T4 0-10 Sentence denotes Background
T5 11-155 Sentence denotes The control of the coronavirus disease 2019 (COVID-19) pandemic depends on the profound investigation of the virus biology and its consequences.
T6 156-323 Sentence denotes We aimed to analyze the COVID-19 research productivity of authors representing different countries and associations between the number of articles and COVID-19 spread.
T7 324-331 Sentence denotes Methods
T8 332-430 Sentence denotes We retrieved all articles on COVID-19 indexed in PubMed between 31 December 2019 and 30 June 2020.
T9 431-495 Sentence denotes We identified the countries of individual authors’ affiliations.
T10 496-759 Sentence denotes We performed the R Spearman rank correlation test between the number of articles with at least one author from a country per one million citizens and Human Development Index (HDI), a number of COVID-19 cases and deaths per one million citizens before 1 July 2020.
T11 760-767 Sentence denotes Results
T12 768-959 Sentence denotes Overall, we identified 27,815 articles, including 18,225 original contributions, 2,449 reviews, and 69 meta-analyses on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.
T13 960-1152 Sentence denotes The highest productivity characterized the authors coming from China (n = 11,519 articles with at least one author), followed by the United States of America (n = 9,666) and Italy (n = 7,261).
T14 1153-1294 Sentence denotes The number of articles on COVID-19 associated with HDI (Rs = 0.79), the numbers of cases (Rs = 0.47), and deaths (Rs = 0.46) (all p < 0.001).
T15 1295-1306 Sentence denotes Conclusions
T16 1307-1466 Sentence denotes Early COVID-19 researches were most often authored by researchers from highly developed countries and those affected by the rapid initial spread of SARS-CoV-2.