Table 1 Characteristics of analyzed journal articles with original data
Variable (N of denominator) | N (%)a |
|---|---|
Journals (N = 533) | |
Journal of Medical Virology | 33 (6.1) |
Journal of Infection | 18 (3.3) |
International Journal of Infectious Diseases | 16 (3.0) |
Clinical Infectious Diseases | 15 (2.8) |
Radiology | 14 (2.6) |
Other | 437 (82) |
Country in the author affiliation (N = 533) | |
China | 402 (75) |
USA | 62 (12) |
UK | 21 (3.9) |
Japan | 20 (3.7) |
Italy | 19 (3.5) |
Other | 9 (1.7) |
Self-reported study design (N = 312) | |
Retrospective study | 88 (28) |
Case report | 86 (28) |
Case series | 46 (15) |
Modelling | 18 (5.7) |
Systematic review with or without meta-analysis | 16 (5.1) |
Other | 58 (18.6) |
Thematic classification (N = 456) | |
Case reports – patients | 173 (38) |
Transmission/risk/prevalence | 104 (23) |
Genetics/biology | 57 (13) |
Health impacts | 54 (12) |
Diagnosis | 41 (9) |
Other | 27 (5.9) |
Country of study funders (N = 268) | |
China | 202 (75) |
USA | 13 (4.9) |
Japan | 11 (4.1) |
Korea | 5 (1.9) |
Canada | 4 (1.5) |
Other | 33 (12.3) |