{"authorName":"Vaira et al. 1","DOI":"10.1002/hed.26204","ni":72,"xi":44,"percentOlfactoryLoss":61.11111,"comments":"In the abstact of the paper it says 60 cases with varying degree of hyposmia and 2 patients with anosmia -- Results showed 44","objectivity":"Objective","measured":"Taste and Smell, Smell only","testType":"Connecticut Chemosensory Clinical Research Center orthonasal olfaction test","country":"Italy","patientType":"18+, nasal swab confirmed"}
{"authorName":"Iravani et al.","DOI":"10.1101/2020.05.07.20094516","ni":16,"xi":13,"percentOlfactoryLoss":81.25,"comments":"Preprint, only small part of whole paper","objectivity":"Objective","measured":"Smell only","testType":"5 odor smell panel - no indication of validation - used test-retest to measure reliability","country":"Sweden","patientType":"18+, 16 COVID-Confirmed"}
{"authorName":"Vaira et al. 2","DOI":"10.1002/hed.26228","ni":33,"xi":17,"percentOlfactoryLoss":51.51515,"comments":"Changed to 17 cases, peer reviewed","objectivity":"Objective","measured":"Smell only","testType":"Connecticut Chemosensory Clinical Research Center orthonasal olfaction test, self administered olfactory test","country":"Italy","patientType":"18+, nasal swab confirmed, home-quarantined"}
{"authorName":"Merza et al.","DOI":"10.1016/j.dsx.2020.04.047","ni":15,"xi":2,"percentOlfactoryLoss":13.33333,"comments":"Changed cases to 2; 4 patients had \"smell and taste disorders\", of which 2 had both and 2 had only taste","objectivity":"Subjective","measured":"Smell only","testType":"Unknown, Hospital Reported","country":"Duhok, Iraqi Kurdistan","patientType":"All ages, COVID-Confirmed"}
{"authorName":"Menni et al. 1","DOI":"10.1101/2020.04.05.20048421","ni":579,"xi":344,"percentOlfactoryLoss":59.41278,"comments":"looks good","objectivity":"Subjective","measured":"Taste and Smell","testType":"Self Reported","country":"UK and US","patientType":"16-90, COVID-Confirmed"}
{"authorName":"Levinson et al.","DOI":"10.1101/2020.04.11.20055483","ni":42,"xi":15,"percentOlfactoryLoss":35.71429,"comments":"Changed cases to 14, looks good","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"Israel","patientType":"15+, Hospitalized, nasal swab confirmed"}
{"authorName":"Haehner et al.","DOI":"10.1101/2020.04.27.20081356","ni":34,"xi":22,"percentOlfactoryLoss":64.70588,"comments":"Changes case numbers to 22 and total to 34","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"Germany","patientType":"Patient showing symptoms, only COVID positive patients used"}
{"authorName":"Speth et al.","DOI":"10.1177/0194599820929185","ni":103,"xi":63,"percentOlfactoryLoss":61.16505,"comments":"Looks good, measured olfactory dysfunction over phone","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"Switzerland","patientType":"All ages, COVID-Confirmed, Hospitalized or Treated at hospital"}
{"authorName":"De Maria et al.","DOI":"10.1002/jmv.25995.","ni":95,"xi":48,"percentOlfactoryLoss":50.52632,"comments":"Studied \"loss of smell or taste\", looks good","objectivity":"Subjective","measured":"Taste and Smell","testType":"Self Reported","country":"Italy","patientType":"All ages, COVID-Confirmed, home-quarantined"}
{"authorName":"Menni et al. 2","DOI":"10.1038/s41591-020-0916-2","ni":7178,"xi":4668,"percentOlfactoryLoss":65.03204,"comments":"Smartphone app tracking, Studied \"Loss of smell and taste\"","objectivity":"Subjective","measured":"Taste and Smell","testType":"Self Reported","country":"UK and US","patientType":"16-90, COVID-Confirmed,unspecified hospitalization/quarantine"}
{"authorName":"Yan et al. 1","DOI":"10.1111/alr.22579.","ni":59,"xi":40,"percentOlfactoryLoss":67.79661,"comments":"looks good","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"US","patientType":"COVID-Confirmed, home-quarantined"}
{"authorName":"Luers et al.","DOI":"10.1093/cid/ciaa525","ni":72,"xi":53,"percentOlfactoryLoss":73.61111,"comments":"looks good","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"Germany","patientType":"COVID-Confirmed, home-quarantined"}
{"authorName":"Roland et al.","DOI":"10.1111/alr.22602.","ni":145,"xi":95,"percentOlfactoryLoss":65.51724,"comments":"Changed cases to 95","objectivity":"Subjective","measured":"Taste or Smell","testType":"Self Reported","country":"US/Online Global","patientType":"COVID-19 Confirmed, online presumably home-quarantined"}
{"authorName":"Boscolo-Rizzo et al","DOI":"10.1007/s00405-020-06066-9","ni":54,"xi":34,"percentOlfactoryLoss":62.96296,"comments":"Of those who were tested, I found 34/54 had an altered sense of taste/smnell","objectivity":"Subjective","measured":"Taste or Smell","testType":"Self Reported","country":"Italy","patientType":"Home-quarantined, COVID-positive included, Household contacts of patients from Spinato paper"}
{"authorName":"Liu et al.","DOI":"10.3390/ijerph17093311","ni":321,"xi":42,"percentOlfactoryLoss":13.08411,"comments":"Studied \"loss of smell or taste\"","objectivity":"Subjective","measured":"Taste or Smell","testType":"Unknown, Hospital Reported","country":"Taiwan","patientType":"Unknown"}
{"authorName":"Paderno et al.","DOI":"10.1111/alr.22610.","ni":508,"xi":284,"percentOlfactoryLoss":55.90551,"comments":"looks good","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"Italy","patientType":"Hospitalized and home-quarantined"}
{"authorName":"Lee et al.","DOI":"10.3346/jkms.2020.35.e174","ni":3191,"xi":488,"percentOlfactoryLoss":15.29301,"comments":"studied \"anosmia or ageusia\"","objectivity":"Subjective","measured":"Taste or Smell","testType":"Self Reported","country":"Korea","patientType":"Home-quarantined"}
{"authorName":"Lechien et al.","DOI":"10.1007/s00405-020-05965-1","ni":417,"xi":357,"percentOlfactoryLoss":85.61151,"comments":"looks good","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported, Survey based on NHANES and sQOD-NS","country":"Belgium, France, Spain, Italy","patientType":"Home-quarantined, not specified"}
{"authorName":"Gelardi et al.","DOI":"10.23750/abm.v91i2.9524","ni":72,"xi":42,"percentOlfactoryLoss":58.33333,"comments":"I could not find this paper","objectivity":"Subjective","measured":"smell only, taste and smell","testType":"Self Reported, Not specified","country":"Italy","patientType":"Not specified"}
{"authorName":"Giacomelli et al.","DOI":"10.1093/cid/ciaa330","ni":59,"xi":14,"percentOlfactoryLoss":23.72881,"comments":"Changed to 14 cases","objectivity":"Subjective","measured":"Taste and Smell, Smell only","testType":"Self Reported","country":"Italy","patientType":"Hospitalized"}
{"authorName":"Shoer et al.","DOI":"10.1101/2020.05.18.20105569.this","ni":498,"xi":136,"percentOlfactoryLoss":27.30924,"comments":"Changed cases to 136","objectivity":"Subjective","measured":"Taste or smell","testType":"Self Reported Survey","country":"Israel","patientType":"Home-quarantined, not specified"}
{"authorName":"Vaira et al. 3","DOI":"10.1002/hed.26269","ni":345,"xi":241,"percentOlfactoryLoss":69.85507,"comments":"Looks good, Measures Mild-servere hyponosmia + Anosmia","objectivity":"Objective","measured":"Smell","testType":"Connecticut Chemosensory Clinical Research Center orthonasal olfaction test, home discrimination test, validated test from previoud Vaira et al study","country":"Italy","patientType":"Home-quarantined hospital staff, and hospitalized patients"}
{"authorName":"Bocksberger et al.","DOI":"10.1007/s00106-020-00891-4","ni":63,"xi":26,"percentOlfactoryLoss":41.26984,"comments":"Check on this; some english","objectivity":"Subjective","measured":"Taste and/or Smell","testType":"Sniffin Sticks Screening 12 Test and Taste Strips for some patients","country":"Germany","patientType":"hospitalized"}
{"authorName":"Mao","DOI":"10.1101/2020.02.22.20026500","ni":214,"xi":11,"percentOlfactoryLoss":5.14019,"comments":"Good study; subjective","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported, EHR Records","country":"China","patientType":"Hospitalized"}
{"authorName":"Spinato","DOI":"10.1001/jama.2020.6771","ni":202,"xi":130,"percentOlfactoryLoss":64.35644,"comments":"Subjective","objectivity":"Subjective","measured":"Taste or Smell","testType":"SNOT-22","country":"Italy","patientType":"Home-quarantined"}
{"authorName":"Beltran-Corbellini","DOI":"10.1007/s00405-020-05999-5","ni":79,"xi":25,"percentOlfactoryLoss":31.64557,"comments":"Subjective","objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"Spain","patientType":"Hospitalized?"}
{"authorName":"Trubiano et al.","DOI":"10.1093/cid/ciaa655","ni":28,"xi":7,"percentOlfactoryLoss":25,"comments":"looks good","objectivity":"Subjective","measured":"Taste and Smell, Smell only","testType":"Self Reported","country":"Australia","patientType":"Unspecified, Clinically evaluated"}
{"authorName":"Moein et al.","DOI":"10.1111/alr.22587.","ni":60,"xi":59,"percentOlfactoryLoss":98.33333,"comments":"good","objectivity":"Objective","measured":"Smell","testType":"University of Pennsylvania Smell Identification Test","country":"Iran","patientType":"Hospitalized"}
{"authorName":"Hornuss et al.","DOI":"10.1101/2020.04.28.20083311","ni":45,"xi":38,"percentOlfactoryLoss":84.44444,"comments":"Good","objectivity":"Objective","measured":"Smell","testType":"Sniffin Sticks","country":"Germany","patientType":"Hospitalized"}
{"authorName":"Yan et al. 2","DOI":"10.1111/alr.22592.","ni":128,"xi":75,"percentOlfactoryLoss":58.59375,"comments":"68 ambulatory + 7 admitted of all covid positive; are we sure this does not overlap with Yan 1?","objectivity":"Subjective","measured":"Smell","testType":"Self Reported","country":"US","patientType":"Hospitalized and home-quarantined"}
{"authorName":"Klopfenstein et al.","DOI":"10.1016/j.medmal.2020.04.006","ni":114,"xi":54,"percentOlfactoryLoss":47.36842,"comments":"Good","objectivity":"Subjective","measured":"Smell","testType":"Self Reported","country":"France","patientType":"Hospitalized and home-quarantined"}
{"authorName":"Gudbjartsson","DOI":"10.1056/NEJMoa2006100","ni":1113,"xi":119,"percentOlfactoryLoss":10.69182,"comments":"Good","objectivity":"Subjective","measured":"Taste or Smell","testType":"Self Reported","country":"Iceland","patientType":"Unknown"}
{"authorName":"Wee et al","DOI":"10.1007/s00405-020-05999-5","ni":154,"xi":35,"percentOlfactoryLoss":22.72727,"objectivity":"Subjective","measured":"Smell or Taste","testType":"Self Reported, Unspecified","country":"Singapore","patientType":"Hospitalized"}
{"authorName":"Dawson et al","DOI":"10.1101/2020.05.13.20101006.t","ni":42,"xi":18,"percentOlfactoryLoss":42.85714,"objectivity":"Subjective","measured":"Smell","testType":"Self Reported","country":"US","patientType":"Home-quarantined"}
{"authorName":"Ji Yun Noh et al","DOI":"10.1016/j.jinf.2020.05.035","ni":199,"xi":52,"percentOlfactoryLoss":26.13065,"objectivity":"Subjective","measured":"Smell only","testType":"Self Reported","country":"South Korea","patientType":"Unspecified, Likely Hospitalized and Home-quarantined"}