Table 2. Subgroup analysis of AGREE-II scores for the guidelines of the five viruses (mean ± SD).
| Categories | SARS (n=21) | MERS (n=9) | EBOV (n=11) | ZIKV (n=10) | SARS-CoV-2 (n=30) |
|---|---|---|---|---|---|
| Publication year since outbreak† | |||||
| ≤1 year | 0.14±0.05 | 0.29±0.19 | 0.18±0.11 | – | – |
| >1 year | 0.22±0.07 | 0.24±0.05 | 0.34±0.15 | ||
| t/F/H | −3.195 | 0.459 | −1.991 | ||
| P | 0.005 | 0.660 | 0.078 | ||
| Publication country/region | |||||
| International | 0.19±0.00 | 0.23±0.08 | 0.32±0.17 | 0.38±0.18 | 0.22±0.08 |
| China | 0.14±0.05 | 0.14±0.00 | 0.16±0.10 | – | 0.19±0.12 |
| America | 0.22±0.03 | – | 0.14±0.00 | 0.24±0.03 | 0.16±0.05 |
| Others | 0.31±0.06 | 0.38±0.18 | 0.27±0.15 | – | 0.13±0.00 |
| t/F/H | 8.118 | 1.942 | 0.627 | 1.742 | 0.724 |
| P | 0.001 | 0.224 | 0.620 | 0.137 | 0.547 |
| Publication format | |||||
| Journal | 0.17±0.08 | 0.32±0.23 | 0.35±0.20 | 0.24±0.01 | 0.44±0.00 |
| Website | 0.23±0.10 | 0.24±0.08 | 0.23±0.11 | 0.36±0.18 | 0.18±0.08 |
| t/F/H | −0.217 | 0.572 | 1.305 | −1.698 | 3.307 |
| P | 0.830 | 0.619 | 0.224 | 0.140 | 0.003 |
| Organization | |||||
| WHO | 0.19±0.00 | 0.23±0.08 | 0.26±0.11 | – | – |
| CDC | 0.16±0.07 | – | 0.12±0.02 | ||
| Government | 0.22±0.04 | 0.22±0.12 | 0.25±0.00 | ||
| Society/association | 0.23±0.07 | 0.41±0.24 | 0.17±0.00 | ||
| Hospital | 0.12±0.05 | – | – | ||
| University | – | – | 0.59±0.00 | ||
| Not reported | 0.12±0.03 | – | 0.4±0.00 | ||
| t/F/H | 3.119 | 1.589 | 3.402 | 2.455* | 14.367* |
| P | 0.040 | 0.279 | 0.103 | 0.29 | 0.006 |
All guidelines of Zika virus and SARS-CoV-2 were published in the same year, the data cannot carry out subgroup analysis for the publication year since outbreak. *, Kruskal-Wallis Test was used due to uneven variance; †, publication year within an outbreak: 2003 (SARS-CoV), 2014 (Ebola virus), 2015 (MERS-CoV), 2016 (Zika virus), 2020 (SARS-CoV-2). SARS-CoV, Severe Acute Respiratory Syndrome coronavirus; EBOV, Ebola virus; MERS-CoV, Middle East Respiratory Syndrome coronavirus; ZIKV, Zika virus; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; CDC, Centers for Disease Control and Prevention of the United States; Chinese Center for Disease Control and Prevention; t, t value of Student’s t-test; F, F value of analysis of variance; H, H value of Kruskal-Wallis H test.