Table 1: Summary of characteristics of 91 studies included in a meta-analysis of laboratory values and mortality in COVID-19.
| N | % | |
| Year | ||
| 2020 | 96 | 100% |
| Country | ||
| China | 67 | 70% |
| United States | 10 | 10% |
| Italy | 8 | 8% |
| Spain | 3 | 3% |
| United Kingdom | 3 | 3% |
| Iran | 1 | 1% |
| Canada | 1 | 1% |
| International | 1 | 1% |
| Mexico | 1 | 1% |
| Belgium | 1 | 1% |
| Study type | ||
| Retrospective cohort | 59 | 61% |
| Case control | 22 | 23% |
| Prospective cohort | 14 | 15% |
| Ambispective cohort | 1 | 1% |
| Patient type | ||
| Inpatient | 69 | 72% |
| ICU | 12 | 13% |
| Inpatient/ICU | 9 | 9% |
| Inpatient/Outpatient | 1 | 1% |
| Unclear | 3 | 3% |
COVID-19: Novel coronavirus disease 2019; ICU: Intensive care unit.