Descriptive statistics on reference sources in Global Health Security Index
| Source of reference | Mean per country | Median per country | SD | Minimum | Maximum | Reference count |
| Domestic public authority | 7.3 | 7 | 4.2 | 0 | 41 | 1425 |
| WHO | 1.0 | 1 | 1.2 | 0 | 6 | 194 |
| Intergovernmental organisation | 0.5 | 0 | 1.1 | 0 | 7 | 88 |
| Independent source | 0.2 | 0 | 0.6 | 0 | 6 | 34 |
| Total | 8.9 | 8 | 4.3 | 0 | 41 | 1741 |