| Strongest and Most Consistent Evidence |
Serious heart conditions, such as heart failure, coronary artery disease, or cardiomyopathies |
Cohort Study [1, 2]
Meta Analyses [3, 4]
Case Series [5] |
On previous version of list as “Serious Heart Conditions” |
| Chronic kidney disease |
Case Series [6, 7, 8]
Cohort Studies [9, 10, 11] |
On previous version of list as “Chronic Kidney Disease Requiring Dialysis” |
| COPD |
Meta Analyses [4, 12]
Case Series [13]
Cohort Study [10] |
On previous version of list |
| Obesity (BMI> 30) |
Cohort Studies [14, 15, 16, 17, 18]
Cross-sectional [19] |
On previous version of list as “Severe Obesity (BMI ≥40)” |
| Sickle cell disease |
Case Series [20, 21, 22, 23, 24] |
On previous version of list |
| Solid organ transplantation |
Case Series [8, 25, 26, 27, 28, 29, 30] |
New to updated list as of June 25, 2020 |
| Type 2 diabetes mellitus |
Case Series [7]
Longitudinal Study [31]
Cohort Study [32, 33]
Meta Analysis [34] |
On previous version of list |
| Mixed Evidence |
Asthma |
Cohort Study [10, 35, 36, 37]
Case Series [13] |
On previous version of list |
| Cerebrovascular disease |
Meta Analysis [38, 39, 40, 41]
Synthesis of Evidence [42]
Cohort Study [1, 2, 43, 44, 45] |
New to updated list as of June 25, 2020 |
| Hypertension |
Cohort Study [1, 2, 45, 46, 47]
Systematic Review [48]
Meta Analyses [3, 4, 49] |
New to updated list as of June 25, 2020 |
| Pregnancy |
Systematic Review [50]
Case Control Study [51]
Case Series [52, 53, 54, 55]
Cohort Study [56, 57, 58] |
|
| Smoking |
Meta Analyses [3, 59, 60, 61, 62] |
On previous version of list |
| Use of corticosteroids or other immunosuppressive medications |
Case Series [63, 64, 65]
Cohort Study [66, 67] |
On previous version of list |
| Limited Evidence |
Bone marrow transplantation |
Review [68] |
On previous version of list |
| HIV |
Case Series [69, 70] |
On previous version of list |
| Immune deficiencies |
Case Series [71]
Systematic Review [72] |
On previous version of list |
| Inherited metabolic disorders |
Cohort Study [43, 73] |
New to updated list as of June 25, 2020; specific to pediatric populations at this time |
| Neurologic conditions |
Cross-Sectional Study [74]
Cohort Study [37, 45, 73] |
New to updated list as of June 25, 2020; specific to pediatric populations at this time |
| Other chronic lung diseases |
Meta Analysis [4]
Case Series [13]
Cohort Study [10, 75] |
On previous version of list |
| Liver disease |
Meta Analysis [76]
Cohort Study [77, 78]
Literature Review [79] |
On previous version of list |
| Type 1 diabetes mellitus |
Case Series [7]
Cohort Study [32, 33]
Meta Analysis [34] |
On previous version of list |
| Thalassemia |
Case Series [80]
Cross-Sectional Study [81] |
On previous version of list |
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