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Puranik A, Lenehan PJ, O'Horo JC, Pawlowski C, Niesen MJM, Virk A, Swift MD, Kremers W, Venkatakrishnan AJ, Gordon JE, Geyer HL, Speicher LL, Soundararajan V, Badley AD. Durability analysis of the highly effective BNT162b2 vaccine against COVID-19. PNAS Nexus 2022; 1:pgac082. [PMID: 35832867 PMCID: PMC9272171 DOI: 10.1093/pnasnexus/pgac082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 06/02/2022] [Indexed: 02/05/2023]
Abstract
COVID-19 vaccines are effective, but breakthrough infections have been increasingly reported. We conducted a test-negative case-control study to assess the durability of protection after full vaccination with BNT162b2 against polymerase chain reaction (PCR)-confirmed symptomatic SARS-CoV-2 infection, in a national medical practice from January 2021 through January 2022. We fit conditional logistic regression (CLR) models stratified on residential county and calendar time of testing to assess the association between time elapsed since vaccination and the odds of symptomatic infection or non-COVID-19 hospitalization (negative control), adjusted for several covariates. There were 5,985 symptomatic individuals with a positive test after full vaccination with BNT162b2 (cases) and 32,728 negative tests contributed by 27,753 symptomatic individuals after full vaccination (controls). The adjusted odds of symptomatic infection were higher 250 days after full vaccination versus at the date of full vaccination (Odds Ratio [OR]: 3.62, 95% CI: 2.52 to 5.20). The odds of infection were still lower 285 days after the first BNT162b2 dose as compared to 4 days after the first dose (OR: 0.50, 95% CI: 0.37 to 0.67), when immune protection approximates the unvaccinated status. Low rates of COVID-19 associated hospitalization or death in this cohort precluded analyses of these severe outcomes. The odds of non-COVID-19 associated hospitalization (negative control) decreased with time since vaccination, suggesting a possible underestimation of waning protection by this approach due to confounding factors. In summary, BNT162b2 strongly protected against symptomatic SARS-CoV-2 infection for at least 8 months after full vaccination, but the degree of protection waned significantly over this period.
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Affiliation(s)
| | | | | | | | | | - Abinash Virk
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA
| | - Melanie D Swift
- Division of Aerospace, Occupational and Preventive Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Walter Kremers
- Division of Biomedical Statistics, Mayo Clinic, Rochester, MN 55902, USA
| | | | - Joel E Gordon
- Department of Family Medicine, Mayo Clinic Health System, Mankato, MN 56001, USA
| | - Holly L Geyer
- Division of Hospital Internal Medicine, Mayo Clinic, Scottsdale, AZ 85259, USA
| | | | | | - Andrew D Badley
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA,Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
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Puranik A, Lenehan PJ, O'Horo JC, Pawlowski C, Virk A, Swift MD, Kremers W, Venkatakrishnan AJ, Challener DW, Breeher L, Gordon JE, Geyer HL, Speicher LL, Soundararajan V, Badley AD. Durability analysis of the highly effective mRNA-1273 vaccine against COVID-19. PNAS Nexus 2022; 1:pgac058. [PMID: 36713311 PMCID: PMC9802296 DOI: 10.1093/pnasnexus/pgac058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 05/17/2022] [Indexed: 02/01/2023]
Abstract
COVID-19 vaccines are effective, but breakthrough infections have been increasingly reported. We conducted a test-negative case-control study to assess the durability of protection against symptomatic infection after vaccination with mRNA-1273. We fit conditional logistic regression (CLR) models stratified on residential county and calendar date of SARS-CoV-2 PCR testing to assess the association between the time elapsed since vaccination and the odds of symptomatic infection, adjusted for several covariates. There were 2,364 symptomatic individuals who had a positive SARS-CoV-2 PCR test after full vaccination with mRNA-1273 ("cases") and 12,949 symptomatic individuals who contributed 15,087 negative tests after full vaccination ("controls"). The odds of symptomatic infection were significantly higher 250 days after full vaccination compared to the date of full vaccination (Odds Ratio [OR]: 2.47, 95% confidence interval [CI]: 1.19-5.13). The odds of non-COVID-19 associated hospitalization and non-COVID-19 pneumonia (negative control outcomes) remained relatively stable over the same time interval (Day 250 ORNon-COVID Hospitalization: 0.68, 95% CI: 0.47-1.0; Day 250 ORNon-COVID Pneumonia: 1.11, 95% CI: 0.24-5.2). The odds of symptomatic infection remained significantly lower almost 300 days after the first mRNA-1273 dose as compared to 4 days after the first dose, when immune protection approximates the unvaccinated state (OR: 0.26, 95% CI: 0.17-0.39). Low rates of COVID-19 associated hospitalization or death in this cohort precluded analyses of these severe outcomes. In summary, mRNA-1273 robustly protected against symptomatic SARS-CoV-2 infection at least 8 months after full vaccination, but the degree of protection waned over this time period.
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Affiliation(s)
| | | | | | | | - Abinash Virk
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA
| | - Melanie D Swift
- Division of Preventive, Occupational, and Aerospace Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Walter Kremers
- Division of Biomedical Statistics, Mayo Clinic, Rochester, MN 55902, USA
| | | | - Doug W Challener
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA
| | - Laura Breeher
- Division of Preventive, Occupational, and Aerospace Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Joel E Gordon
- Department of Family Medicine, Mayo Clinic Health System, Mankato, MN 56001, USA
| | - Holly L Geyer
- Division of Hospital Internal Medicine, Mayo Clinic, Scottsdale, AZ 85259, USA
| | | | | | - Andrew D Badley
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA,Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
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Niesen MJM, Matson R, Puranik A, O'Horo JC, Pawlowski C, Vachon C, Challener D, Virk A, Swift M, Speicher L, Gordon J, Geyer H, Lenehan PJ, Venkatakrishnan AJ, Soundararajan V, Badley A. Third dose vaccination with mRNA-1273 or BNT162b2 vaccines improves protection against SARS-CoV-2 infection. PNAS Nexus 2022; 1:pgac042. [PMID: 36713312 PMCID: PMC9802350 DOI: 10.1093/pnasnexus/pgac042] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/02/2022] [Accepted: 04/08/2022] [Indexed: 02/01/2023]
Abstract
As of 2021 November 29, booster vaccination against SARS-CoV-2 infection has been recommended for all individuals aged 18 years and older in the United States. A key reason for this recommendation is the expectation that a booster vaccine dose can alleviate observed waning of vaccine effectiveness (VE). Although initial reports of booster effectiveness have been positive, the level of protection from booster vaccination is unclear. We conducted two studies to assess the impact of booster vaccination, with BNT162b2 or mRNA-1273, on the incidence of SARS-CoV-2 infection between August and December 2021. We first compared SARS-CoV-2 infection incidence in cohorts of 3-dose vaccine recipients to incidence in matched cohorts of 2-dose vaccine recipients (cohort size = 24,539 for BNT162b2 and 14,004 for mRNA-1273). Additionally, we applied a test-negative study design to compare the level of protection against symptomatic infection in 3-dose recipients to that observed in recent 2-dose primary vaccine series recipients. The 3-dose recipients experienced a significantly lower incidence rate of SARS-CoV-2 infection than the matched 2-dose cohorts (BNT162b2 Incidence Rate Ratio: 0.11, 95% CI: 0.09 to 0.13 and mRNA-1273 IRR: 0.11, 95% CI: 0.08 to 0.15). Results from the test-negative study showed the third vaccine dose mitigated waning of VE, with the risk of symptomatic infection in 3-dose recipients being comparable to that observed 7 to 73 days after the primary vaccine series. These results show that 3-dose vaccine regimens with BNT162b2 or mRNA-1273 are effective at reducing SARS-CoV-2 infection and support the widespread administration of booster vaccine doses.
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Affiliation(s)
| | | | | | - John C O'Horo
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55905, USA
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Celine Vachon
- Division of Quantitative Health Science, Mayo Clinic, Rochester, MN 55905, USA
| | - Douglas Challener
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55905, USA
| | - Abinash Virk
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55905, USA
| | - Melanie Swift
- Division of Preventive, Occupational and Aerospace Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Leigh Speicher
- Division of General Internal Medicine, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Joel Gordon
- Department of Family Medicine, Mayo Clinic Health System, Mankato, MN 56001, USA
| | - Holly Geyer
- Division of Hospital Internal Medicine, Mayo Clinic, Phoenix, AZ 85054, USA
| | | | | | | | - Andrew Badley
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55905, USA
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55905, USA
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Puranik A, Lenehan PJ, Silvert E, Niesen MJM, Corchado-Garcia J, O'Horo JC, Virk A, Swift MD, Gordon JE, Speicher LL, Geyer HL, Kremers W, Halamka J, Badley AD, Venkatakrishnan AJ, Soundararajan V. Comparative effectiveness of mRNA-1273 and BNT162b2 against symptomatic SARS-CoV-2 infection. Med 2022; 3:28-41.e8. [PMID: 34927113 PMCID: PMC8664708 DOI: 10.1016/j.medj.2021.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/19/2021] [Accepted: 11/25/2021] [Indexed: 01/28/2023]
Abstract
BACKGROUND mRNA coronavirus disease 2019 (COVID-19) vaccines are safe and effective, but increasing reports of breakthrough infections highlight the need to vigilantly monitor and compare the effectiveness of these vaccines. METHODS We retrospectively compared protection against symptomatic infection conferred by mRNA-1273 and BNT162b2 at Mayo Clinic sites from December 2020 to September 2021. We used a test-negative case-control design to estimate vaccine effectiveness (VE) and to compare the odds of symptomatic infection after full vaccination with mRNA-1273 versus BNT162b2, while adjusting for age, sex, race, ethnicity, geography, comorbidities, and calendar time of vaccination and testing. FINDINGS Both vaccines were highly effective over the study duration (VEmRNA-1273: 84.1%, 95% confidence interval [CI]: 81.6%-86.2%; VEBNT162b2: 75.6%, 95% CI: 72.2%-78.7%), but their effectiveness was reduced during July-September (VEmRNA-1273: 75.6%, 95% CI: 70.1%-80%; VEBNT162b2: 63.5%, 95% CI: 55.8%-69.9%) as compared to December-May (VEmRNA-1273: 93.7%, 95% CI: 90.4%-95.9%; VEBNT162b2: 85.7%, 95% CI: 81.4%-88.9%). Adjusted for demographic characteristics, clinical comorbidities, time of vaccination, and time of testing, the odds of experiencing a symptomatic breakthrough infection were lower after full vaccination with mRNA-1273 than with BNT162b2 (odds ratio: 0.60; 95% CI: 0.55-0.67). CONCLUSIONS Both mRNA-1273 and BNT162b2 strongly protect against symptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. It is imperative to continue monitoring and comparing available vaccines over time and with respect to emerging variants to inform public and global health decisions. FUNDING This study was funded by nference.
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Affiliation(s)
| | | | | | | | | | - John C O'Horo
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Abinash Virk
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA
| | - Melanie D Swift
- Division of Aerospace, Occupational and Preventive Medicine, Mayo Clinic, Rochester, MN 55902, USA
| | - Joel E Gordon
- Department of Family Medicine, Mayo Clinic Health System, Mankato, MN 56001, USA
| | | | - Holly L Geyer
- Division of Hospital Internal Medicine, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Walter Kremers
- Division of Biomedical Statistics, Mayo Clinic, Rochester, MN 55902, USA
| | - John Halamka
- Mayo Clinic Platform, Mayo Clinic, Rochester, MN 55902, USA
| | - Andrew D Badley
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN 55902, USA
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN 55902, USA
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Razonable RR, Pawlowski C, O'Horo JC, Arndt LL, Arndt R, Bierle DM, Borgen MD, Hanson SN, Hedin MC, Lenehan P, Puranik A, Seville MT, Speicher LL, Tulledge-Scheitel SM, Venkatakrishnan AJ, Wilker CG, Badley AD, Ganesh R. Casirivimab-Imdevimab treatment is associated with reduced rates of hospitalization among high-risk patients with mild to moderate coronavirus disease-19. EClinicalMedicine 2021; 40:101102. [PMID: 34485873 PMCID: PMC8404031 DOI: 10.1016/j.eclinm.2021.101102] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Real-world clinical data to support the use of casirivimab-imdevimab for the treatment of outpatients with mild to moderate coronavirus disease-19 (COVID-19) is needed. This study aimed to assess the outcomes of casirivimab-imdevimab treatment of mild to moderate COVID-19. METHODS A retrospective cohort of 696 patients who received casirivimab-imdevimab between December 4, 2020 and April 9, 2021 was compared to a propensity-matched control of 696 untreated patients with mild to moderate COVID-19 at Mayo Clinic sites in Arizona, Florida, Minnesota, and Wisconsin. Primary outcome was rate of hospitalization at days 14, 21 and 28 after infusion. FINDINGS The median age of the antibody-treated cohort was 63 years (interquartile range, 52-71); 45·5% were ≥65 years old; 51.4% were female. High-risk characteristics were hypertension (52.4%), body mass index ≥35 (31.0%), diabetes mellitus (24.6%), chronic lung disease (22.1%), chronic renal disease (11.4%), congestive heart failure (6.6%), and compromised immune function (6.7%). Compared to the propensity-matched untreated control, patients who received casirivimab-imdevimab had significantly lower all-cause hospitalization rates at day 14 (1.3% vs 3.3%; Absolute Difference: 2.0%; 95% confidence interval (CI): 0.5-3.7%), day 21 (1.3% vs 4.2%; Absolute Difference: 2.9%; 95% CI: 1.2-4.7%), and day 28 (1.6% vs 4.8%; Absolute Difference: 3.2%; 95% CI: 1.4-5.1%). Rates of intensive care unit admission and mortality at days 14, 21 and 28 were similarly low for antibody-treated and untreated groups. INTERPRETATION Among high-risk patients with mild to moderate COVID-19, casirivimab-imdevimab treatment was associated with a significantly lower rate of hospitalization. FUNDING Mayo Clinic.
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Affiliation(s)
| | | | | | - Lori L. Arndt
- Mayo Clinic Health System, Eau Claire, WI, United States
| | - Richard Arndt
- Mayo Clinic Health System, Eau Claire, WI, United States
| | | | | | | | | | | | | | | | | | | | | | - Caroline G. Wilker
- Mayo Clinic Health System Franciscan Healthcare, La Crosse, WI, United States
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Ganesh R, Pawlowski CF, O’Horo JC, Arndt LL, Arndt RF, Bell SJ, Bierle DM, Borgen MD, Hanson SN, Heyliger A, Larsen JJ, Lenehan PJ, Orenstein R, Puranik A, Speicher LL, Tulledge-Scheitel SM, Venkatakrishnan A, Wilker CG, Badley AD, Razonable RR. Intravenous bamlanivimab use associates with reduced hospitalization in high-risk patients with mild to moderate COVID-19. J Clin Invest 2021; 131:e151697. [PMID: 34411003 PMCID: PMC8483756 DOI: 10.1172/jci151697] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/13/2021] [Indexed: 01/28/2023] Open
Abstract
BACKGROUNDClinical data to support the use of bamlanivimab for the treatment of outpatients with mild to moderate coronavirus disease-19 (COVID-19) are needed.METHODS2335 Patients who received single-dose bamlanivimab infusion between November 12, 2020, and February 17, 2021, were compared with a propensity-matched control of 2335 untreated patients with mild to moderate COVID-19 at Mayo Clinic facilities across 4 states. The primary outcome was the rate of hospitalization at days 14, 21, and 28.RESULTSThe median age of the population was 63 years; 47.3% of the bamlanivimab-treated cohort were 65 years or more; 49.3% were female and 50.7% were male. High-risk characteristics included hypertension (54.2%), BMI greater than or equal to 35 (32.4%), diabetes mellitus (26.5%), chronic lung disease (25.1%), malignancy (16.6%), and renal disease (14.5%). Patients who received bamlanivimab had lower all-cause hospitalization rates at days 14 (1.5% vs. 3.5%; risk ratio [RR], 0.41), 21 (1.9% vs. 3.9%; RR, 0.49), and 28 (2.5% vs. 3.9%; RR, 0.63). Secondary exploratory outcomes included lower intensive care unit (ICU) admission rates at days 14 (0.14% vs. 1%; RR, 0.14), 21 (0.25% vs.1%; RR, 0.25), and 28 (0.56% vs.1.1%; RR. 0.51) and lower all-cause mortality at days 14 (0% vs. 0.33%), 21 (0.05% vs. 0.4%; RR,0.13), and 28 (0.11% vs. 0.44%; RR, 0.26). Adverse events were uncommon with bamlanivimab, occurring in 19 of 2355 patients, and were most commonly fever (n = 6), nausea (n = 5), and lightheadedness (n = 3).CONCLUSIONSAmong high-risk patients with mild to moderate COVID-19, treatment with bamlanivimab was associated with a statistically significant lower rate of hospitalization, ICU admission, and mortality compared with usual care.FUNDINGMayo Clinic.
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Affiliation(s)
| | | | | | - Lori L. Arndt
- Mayo Clinic Health System, Eau Claire, Wisconsin, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Caroline G. Wilker
- Mayo Clinic Health System–Franciscan Healthcare, La Crosse, Wisconsin, USA
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7
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Puranik A, Lenehan PJ, Silvert E, Niesen MJM, Corchado-Garcia J, O'Horo JC, Virk A, Swift MD, Halamka J, Badley AD, Venkatakrishnan AJ, Soundararajan V. Comparison of two highly-effective mRNA vaccines for COVID-19 during periods of Alpha and Delta variant prevalence. medRxiv 2021. [PMID: 34401884 PMCID: PMC8366801 DOI: 10.1101/2021.08.06.21261707] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Although clinical trials and real-world studies have affirmed the effectiveness and safety of the FDA-authorized COVID-19 vaccines, reports of breakthrough infections and persistent emergence of new variants highlight the need to vigilantly monitor the effectiveness of these vaccines. Here we compare the effectiveness of two full-length Spike protein-encoding mRNA vaccines from Moderna (mRNA-1273) and Pfizer/BioNTech (BNT162b2) in the Mayo Clinic Health System over time from January to July 2021, during which either the Alpha or Delta variant was highly prevalent. We defined cohorts of vaccinated and unvaccinated individuals from Minnesota (n = 25,589 each) matched on age, sex, race, history of prior SARS-CoV-2 PCR testing, and date of full vaccination. Both vaccines were highly effective during this study period against SARS-CoV-2 infection (mRNA-1273: 86%, 95%CI: 81–90.6%; BNT162b2: 76%, 95%CI: 69–81%) and COVID-19 associated hospitalization (mRNA-1273: 91.6%, 95% CI: 81–97%; BNT162b2: 85%, 95% CI: 73–93%). In July, vaccine effectiveness against hospitalization has remained high (mRNA-1273: 81%, 95% CI: 33–96.3%; BNT162b2: 75%, 95% CI: 24–93.9%), but effectiveness against infection was lower for both vaccines (mRNA-1273: 76%, 95% CI: 58–87%; BNT162b2: 42%, 95% CI: 13–62%), with a more pronounced reduction for BNT162b2. Notably, the Delta variant prevalence in Minnesota increased from 0.7% in May to over 70% in July whereas the Alpha variant prevalence decreased from 85% to 13% over the same time period. Comparing rates of infection between matched individuals fully vaccinated with mRNA-1273 versus BNT162b2 across Mayo Clinic Health System sites in multiple states (Minnesota, Wisconsin, Arizona, Florida, and Iowa), mRNA-1273 conferred a two-fold risk reduction against breakthrough infection compared to BNT162b2 (IRR = 0.50, 95% CI: 0.39–0.64). In Florida, which is currently experiencing its largest COVID-19 surge to date, the risk of infection in July after full vaccination with mRNA-1273 was about 60% lower than after full vaccination with BNT162b2 (IRR: 0.39, 95% CI: 0.24–0.62). Our observational study highlights that while both mRNA COVID-19 vaccines strongly protect against infection and severe disease, further evaluation of mechanisms underlying differences in their effectiveness such as dosing regimens and vaccine composition are warranted.
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Affiliation(s)
| | | | - Eli Silvert
- nference, Cambridge, Massachusetts 02139, USA
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8
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Venkatakrishnan AJ, Pawlowski C, Zemmour D, Hughes T, Anand A, Berner G, Kayal N, Puranik A, Conrad I, Bade S, Barve R, Sinha P, O'Horo JC, Badley AD, Halamka J, Soundararajan V. Mapping each pre-existing condition's association to short-term and long-term COVID-19 complications. NPJ Digit Med 2021; 4:117. [PMID: 34315980 PMCID: PMC8316410 DOI: 10.1038/s41746-021-00484-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 06/24/2021] [Indexed: 01/09/2023] Open
Abstract
Understanding the relationships between pre-existing conditions and complications of COVID-19 infection is critical to identifying which patients will develop severe disease. Here, we leverage ~1.1 million clinical notes from 1803 hospitalized COVID-19 patients and deep neural network models to characterize associations between 21 pre-existing conditions and the development of 20 complications (e.g. respiratory, cardiovascular, renal, and hematologic) of COVID-19 infection throughout the course of infection (i.e. 0–30 days, 31–60 days, and 61–90 days). Pleural effusion was the most frequent complication of early COVID-19 infection (89/1803 patients, 4.9%) followed by cardiac arrhythmia (45/1803 patients, 2.5%). Notably, hypertension was the most significant risk factor associated with 10 different complications including acute respiratory distress syndrome, cardiac arrhythmia, and anemia. The onset of new complications after 30 days is rare and most commonly involves pleural effusion (31–60 days: 11 patients, 61–90 days: 9 patients). Lastly, comparing the rates of complications with a propensity-matched COVID-negative hospitalized population confirmed the importance of hypertension as a risk factor for early-onset complications. Overall, the associations between pre-COVID conditions and COVID-associated complications presented here may form the basis for the development of risk assessment scores to guide clinical care pathways.
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9
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McMurry R, Lenehan P, Awasthi S, Silvert E, Puranik A, Pawlowski C, Venkatakrishnan AJ, Anand P, Agarwal V, O'Horo JC, Gores GJ, Williams AW, Badley AD, Halamka J, Virk A, Swift MD, Carlson K, Doddahonnaiah D, Metzger A, Kayal N, Berner G, Ramudu E, Carpenter C, Wagner T, Rajasekharan A, Soundararajan V. Real-time analysis of a mass vaccination effort confirms the safety of FDA-authorized mRNA COVID-19 vaccines. Med (N Y) 2021; 2:965-978.e5. [PMID: 34230920 PMCID: PMC8248717 DOI: 10.1016/j.medj.2021.06.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/04/2021] [Accepted: 06/15/2021] [Indexed: 02/04/2023]
Abstract
Background As the coronavirus disease 2019 (COVID-19) vaccination campaign unfolds, it is important to continuously assess the real-world safety of Food and Drug Administration (FDA)-authorized vaccines. Curation of large-scale electronic health records (EHRs) enables near-real-time safety evaluations that were not previously possible. Methods In this retrospective study, we deployed deep neural networks over a large EHR system to automatically curate the adverse effects mentioned by physicians in over 1.2 million clinical notes between December 1, 2020 and April 20, 2021. We compared notes from 68,266 individuals who received at least one dose of BNT162b2 (n = 51,795) or mRNA-1273 (n = 16,471) to notes from 68,266 unvaccinated individuals who were matched by demographic, geographic, and clinical features. Findings Individuals vaccinated with BNT162b2 or mRNA-1273 had a higher rate of return to the clinic, but not the emergency department, after both doses compared to unvaccinated controls. The most frequently documented adverse effects within 7 days of each vaccine dose included myalgia, headache, and fatigue, but the rates of EHR documentation for each side effect were remarkably low compared to those derived from active solicitation during clinical trials. Severe events, including anaphylaxis, facial paralysis, and cerebral venous sinus thrombosis, were rare and occurred at similar frequencies in vaccinated and unvaccinated individuals. Conclusions This analysis of vaccine-related adverse effects from over 1.2 million EHR notes of more than 130,000 individuals reaffirms the safety and tolerability of the FDA-authorized mRNA COVID-19 vaccines in practice. Funding This study was funded by nference. This is a study of the mRNA COVID-19 vaccines developed by Pfizer/BioNTech and Moderna. Although these vaccines have been shown to be safe and tolerated in clinical trials, it is important to confirm their safety profiles in practice. The results from this study show that individuals receiving these vaccines are likely to experience muscle and joint soreness, but they are not more likely to seek out emergent clinical care or experience severe medical events than unvaccinated individuals. As one of the largest real-world safety studies of COVID-19 vaccines to date, these data reinforce that we should continue expanding efforts to deliver more vaccines with high confidence in their safety.
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Affiliation(s)
- Reid McMurry
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Patrick Lenehan
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Samir Awasthi
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Eli Silvert
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Arjun Puranik
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Colin Pawlowski
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | | | - Praveen Anand
- nference Labs, 2nd Floor, 22 3rd Cross Rd, Murgesh Pallya, Bengaluru, Karnataka 560017, India
| | - Vineet Agarwal
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | | | | | | | | | | | | | | | - Katie Carlson
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | | | - Anna Metzger
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Nikhil Kayal
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Gabi Berner
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | - Eshwan Ramudu
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | | | - Tyler Wagner
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
| | | | - Venky Soundararajan
- nference, One Main Street, East Arcade, Cambridge, MA 02142, USA
- nference Labs, 2nd Floor, 22 3rd Cross Rd, Murgesh Pallya, Bengaluru, Karnataka 560017, India
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10
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Ganesh R, Pawlowski C, O'Horo JC, Arndt LL, Arndt R, Bell SJ, Bierle DM, Borgen MD, Hanson SN, Heyliger A, Larsen JJ, Lenehan P, Orenstein R, Puranik A, Speicher LL, Tulledge-Scheitel SM, Venkatakrishnan AJ, Wilker CG, Badley AD, Razonable RR. Association of Intravenous Bamlanivimab Use with Reduced Hospitalization, Intensive Care Unit Admission, and Mortality in Patients with Mild to Moderate COVID-19. medRxiv 2021:2021.05.23.21257670. [PMID: 34075387 PMCID: PMC8168391 DOI: 10.1101/2021.05.23.21257670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
BACKGROUND Clinical data to support the use of bamlanivimab for the treatment of outpatients with mild to moderate coronavirus disease-19 (COVID-19) is needed. METHODS 2,335 patients who received single-dose bamlanivimab infusion between November 12, 2020 to February 17, 2021 were compared with a propensity-matched control of 2,335 untreated patients with mild to moderate COVID-19 at Mayo Clinic facilities across 4 states. The primary outcome was the rate of hospitalization at days 14, 21 and 28. RESULTS The median age of the population was 63; 47.3% of the bamlanivimab-treated cohort were ≥65 years; 49.3% were female. High-risk characteristics included hypertension (54.2%), body mass index ≥35 (32.4%), diabetes mellitus (26.5%), chronic lung disease (25.1%), malignancy (16.6%), and renal disease (14.5%). Patients who received bamlanivimab had lower all-cause hospitalization rates at days 14 (1.5% vs 3.5%; Odds Ratio [OR], 0.38), 21 (1.9% vs 3.9%; OR, 0.46), and 28 (2.5% vs 3.9%; OR, 0.61). Secondary exploratory outcomes included lower intensive care unit admission rates at days 14 (0.14% vs 1%; OR, 0.12), 21 (0.25% vs 1%; OR: 0.24) and 28 (0.56% vs 1.1%; OR: 0.52), and lower all-cause mortality at days 14 (0% vs 0.33%), 21 (0.05% vs 0.4%; OR,0.08) and 28 (0.11% vs 0.44%; OR, 0.01). Adverse events were uncommon with bamlanivimab, occurring in 19/2355, most commonly fever (n=6), nausea (n=5), and lightheadedness (n=3). CONCLUSIONS Among high-risk patients with mild to moderate COVID-19, treatment with bamlanivimab was associated with a statistically significant lower rate of hospitalization compared with usual care. FUNDING Mayo Clinic.
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11
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Pawlowski C, Venkatakrishnan AJ, Ramudu E, Kirkup C, Puranik A, Kayal N, Berner G, Anand A, Barve R, O'Horo JC, Badley AD, Soundararajan V. Pre-existing conditions are associated with COVID-19 patients' hospitalization, despite confirmed clearance of SARS-CoV-2 virus. EClinicalMedicine 2021; 34:100793. [PMID: 33778434 PMCID: PMC7985595 DOI: 10.1016/j.eclinm.2021.100793] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 02/24/2021] [Accepted: 02/24/2021] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND Consecutive negative SARS-CoV-2 PCR test results are being considered to estimate viral clearance in COVID-19 patients. However, there are anecdotal reports of hospitalization from protracted COVID-19 complications despite such confirmed viral clearance, presenting a clinical conundrum. METHODS We conducted a retrospective analysis of 222 hospitalized COVID-19 patients to compare those that were readmitted post-viral clearance (hospitalized post-clearance cohort, n = 49) with those that were not re-admitted post-viral clearance (non-hospitalized post-clearance cohort, n = 173) between February and October 2020. In order to differentiate these two cohorts, we used neural network models for the 'augmented curation' of comorbidities and complications with positive sentiment in the Electronic Hosptial Records physician notes. FINDINGS In the year preceding COVID-19 onset, anemia (n = 13 [26.5%], p-value: 0.007), cardiac arrhythmias (n = 14 [28.6%], p-value: 0.015), and acute kidney injury (n = 7 [14.3%], p-value: 0.030) were significantly enriched in the physician notes of the hospitalized post-clearance cohort. INTERPRETATION Overall, this retrospective study highlights specific pre-existing conditions that are associated with higher hospitalization rates in COVID-19 patients despite viral clearance and motivates follow-up prospective research into the associated risk factors. FUNDING This work was supported by Nference, inc.
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Affiliation(s)
- Colin Pawlowski
- nference, One Main Street, Cambridge, MA 02142, United States
| | | | - Eshwan Ramudu
- nference, One Main Street, Cambridge, MA 02142, United States
| | | | - Arjun Puranik
- nference, One Main Street, Cambridge, MA 02142, United States
| | - Nikhil Kayal
- nference, One Main Street, Cambridge, MA 02142, United States
| | - Gabriela Berner
- nference, One Main Street, Cambridge, MA 02142, United States
| | - Akash Anand
- nference Labs, Indiqube, 22, 3rd Cross Rd, S R Layout, Murgesh Pallya, Bengaluru, Karnataka 560017, India
| | - Rakesh Barve
- nference Labs, Indiqube, 22, 3rd Cross Rd, S R Layout, Murgesh Pallya, Bengaluru, Karnataka 560017, India
| | | | | | - Venky Soundararajan
- nference, One Main Street, Cambridge, MA 02142, United States
- nference Labs, Indiqube, 22, 3rd Cross Rd, S R Layout, Murgesh Pallya, Bengaluru, Karnataka 560017, India
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12
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Kirkup C, Pawlowski C, Puranik A, Conrad I, O'Horo JC, Gomaa D, Banner-Goodspeed VM, Mosier JM, Zabolotskikh IB, Daugherty SK, Bernstein MA, Zaren HA, Bansal V, Pickering B, Badley AD, Kashyap R, Venkatakrishnan AJ, Soundararajan V. Healthcare disparities among anticoagulation therapies for severe COVID-19 patients in the multi-site VIRUS registry. J Med Virol 2021; 93:4303-4318. [PMID: 33666246 PMCID: PMC8013987 DOI: 10.1002/jmv.26918] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/17/2021] [Accepted: 03/01/2021] [Indexed: 11/10/2022]
Abstract
Here we analyze hospitalized andintensive care unit coronavirus disease 2019 (COVID‐19) patient outcomes from the international VIRUS registry (https://clinicaltrials.gov/ct2/show/NCT04323787). We find that COVID‐19 patients administered unfractionated heparin but not enoxaparin have a higher mortality‐rate (390 of 1012 = 39%) compared to patients administered enoxaparin but not unfractionated heparin (270 of 1939 = 14%), presenting a risk ratio of 2.79 (95% confidence interval [CI]: [2.42, 3.16]; p = 4.45e−52). This difference persists even after balancing on a number of covariates including demographics, comorbidities, admission diagnoses, and method of oxygenation, with an increased mortality rate on discharge from the hospital of 37% (268 of 733) for unfractionated heparin versus 22% (154 of 711) for enoxaparin, presenting a risk ratio of 1.69 (95% CI: [1.42, 2.00]; p = 1.5e−8). In these balanced cohorts, a number of complications occurred at an elevated rate for patients administered unfractionated heparin compared to patients administered enoxaparin, including acute kidney injury, acute cardiac injury, septic shock, and anemia. Furthermore, a higher percentage of Black/African American COVID patients (414 of 1294 [32%]) were noted to receive unfractionated heparin compared to White/Caucasian COVID patients (671 of 2644 [25%]), risk ratio 1.26 (95% CI: [1.14, 1.40]; p = 7.5e−5). After balancing upon available clinical covariates, this difference in anticoagulant use remained statistically significant (311 of 1047 [30%] for Black/African American vs. 263 of 1047 [25%] for White/Caucasian, p = .02, risk ratio 1.18; 95% CI: [1.03, 1.36]). While retrospective studies cannot suggest any causality, these findings motivate the need for follow‐up prospective research into the observed racial disparity in anticoagulant use and outcomes for severe COVID‐19 patients.
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Affiliation(s)
| | | | | | - Ian Conrad
- nference, Inc., Cambridge, Massachusetts, USA
| | | | - Dina Gomaa
- University of Cincinnati, Cincinnati, Ohio, USA
| | | | | | | | | | | | - Howard A Zaren
- St. Joseph's Candler Health System, Savannah, Georgia, USA
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13
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Awasthi S, Wagner T, Venkatakrishnan AJ, Puranik A, Hurchik M, Agarwal V, Conrad I, Kirkup C, Arunachalam R, O'Horo J, Kremers W, Kashyap R, Morice W, Halamka J, Williams AW, Faubion WA, Badley AD, Gores GJ, Soundararajan V. Plasma IL-6 levels following corticosteroid therapy as an indicator of ICU length of stay in critically ill COVID-19 patients. Cell Death Discov 2021; 7:55. [PMID: 33723251 PMCID: PMC7958587 DOI: 10.1038/s41420-021-00429-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/14/2020] [Accepted: 12/04/2020] [Indexed: 12/13/2022] Open
Abstract
Intensive care unit (ICU) admissions and mortality in severe COVID-19 patients are driven by "cytokine storms" and acute respiratory distress syndrome (ARDS). Interim clinical trial results suggest that the corticosteroid dexamethasone displays better 28-day survival in severe COVID-19 patients requiring ventilation or oxygen. In this study, 10 out of 16 patients (62.5%) that had an average plasma IL-6 value over 10 pg/mL post administration of corticosteroids also had worse outcomes (i.e., ICU stay >15 days or death), compared to 8 out of 41 patients (19.5%) who did not receive corticosteroids (p-value = 0.0024). Given this potential association between post-corticosteroid IL-6 levels and COVID-19 severity, we hypothesized that the glucocorticoid receptor (GR or NR3C1) may be coupled to IL-6 expression in specific cell types that govern cytokine release syndrome (CRS). Examining single-cell RNA-seq data from BALF of severe COVID-19 patients and nearly 2 million cells from a pan-tissue scan shows that alveolar macrophages, smooth muscle cells, and endothelial cells co-express NR3C1 and IL-6, motivating future studies on the links between the regulation of NR3C1 function and IL-6 levels.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - William Morice
- Mayo Clinic, Rochester, MN, 55905, USA
- Mayo Clinic Laboratories, Rochester, MN, 55905, USA
| | - John Halamka
- Mayo Clinic, Rochester, MN, 55905, USA
- Mayo Clinic Platform, Rochester, MN, 55905, USA
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14
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Pawlowski C, Venkatakrishnan AJ, Kirkup C, Berner G, Puranik A, O'Horo JC, Badley AD, Soundararajan V. Enoxaparin is associated with lower rates of mortality than unfractionated Heparin in hospitalized COVID-19 patients. EClinicalMedicine 2021; 33:100774. [PMID: 33718845 PMCID: PMC7941023 DOI: 10.1016/j.eclinm.2021.100774] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/09/2021] [Accepted: 02/09/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Coagulopathies are a major class among COVID-19 associated complications. Although anticoagulants such as unfractionated Heparin and Enoxaparin are both being used for therapeutic mitigation of COVID associated coagulopathy (CAC), differences in their clinical outcomes remain to be investigated. METHODS We analyzed records of 1,113 patients in the Mayo Clinic Electronic Health Record (EHR) database who were admitted to the hospital for COVID-19 between April 4, 2020 and August 31, 2020, including 19 different Mayo Clinic sites in Arizona, Florida, Minnesota, and Wisconsin. Among this patient population, we compared cohorts of patients who received different types of anticoagulants, including 441 patients who received unfractionated Heparin and 166 patients who received Enoxaparin. Clinical outcomes at 28 days were compared, and propensity score matching was used to control for potential confounding variables including: demographics, comorbidities, ICU status, chronic kidney disease stage, and oxygenation status. Patients with a history of acute kidney injury and patients who received multiple types of anticoagulants were excluded from the study. FINDINGS We find that COVID-19 patients administered unfractionated Heparin but not Enoxaparin have higher rates of 28-day mortality (risk ratio: 4.3; 95% Confidence Interval [C.I.].: [1.8, 10.2]; p-value: 8.5e-4, Benjamini Hochberg [BH] adjusted p-value: 2.1e-3), after controlling for potential confounding factors. INTERPRETATION This study emphasizes the need for mechanistically investigating differential modulation of the COVID-associated coagulation cascades by Enoxaparin versus unfractionated Heparin. FUNDING This work was supported by Nference, inc.
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Affiliation(s)
- Colin Pawlowski
- nference inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | - AJ Venkatakrishnan
- nference inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | - Christian Kirkup
- nference inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | - Gabriela Berner
- nference inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | - Arjun Puranik
- nference inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | | | | | - Venky Soundararajan
- nference inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
- Corresponding author.
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15
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Pawlowski C, Puranik A, Bandi H, Venkatakrishnan AJ, Agarwal V, Kennedy R, O'Horo JC, Gores GJ, Williams AW, Halamka J, Badley AD, Soundararajan V. Exploratory analysis of immunization records highlights decreased SARS-CoV-2 rates in individuals with recent non-COVID-19 vaccinations. Sci Rep 2021; 11:4741. [PMID: 33637783 PMCID: PMC7910541 DOI: 10.1038/s41598-021-83641-y] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 02/05/2021] [Indexed: 11/09/2022] Open
Abstract
Clinical studies are ongoing to assess whether existing vaccines may afford protection against SARS-CoV-2 infection through trained immunity. In this exploratory study, we analyze immunization records from 137,037 individuals who received SARS-CoV-2 PCR tests. We find that polio, Haemophilus influenzae type-B (HIB), measles-mumps-rubella (MMR), Varicella, pneumococcal conjugate (PCV13), Geriatric Flu, and hepatitis A/hepatitis B (HepA-HepB) vaccines administered in the past 1, 2, and 5 years are associated with decreased SARS-CoV-2 infection rates, even after adjusting for geographic SARS-CoV-2 incidence and testing rates, demographics, comorbidities, and number of other vaccinations. Furthermore, age, race/ethnicity, and blood group stratified analyses reveal significantly lower SARS-CoV-2 rate among black individuals who have taken the PCV13 vaccine, with relative risk of 0.45 at the 5 year time horizon (n: 653, 95% CI (0.32, 0.64), p-value: 6.9e-05). Overall, this study identifies existing approved vaccines which can be promising candidates for pre-clinical research and Randomized Clinical Trials towards combating COVID-19.
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Affiliation(s)
- Colin Pawlowski
- Nference, Inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | - Arjun Puranik
- Nference, Inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | - Hari Bandi
- Nference, Inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | - A J Venkatakrishnan
- Nference, Inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | - Vineet Agarwal
- Nference, Inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | | | | | | | | | | | | | - Venky Soundararajan
- Nference, Inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA.
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16
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Agarwal V, Venkatakrishnan AJ, Puranik A, Kirkup C, Lopez-Marquez A, Challener DW, Theel ES, O'Horo JC, Binnicker MJ, Kremers WK, Faubion WA, Badley AD, Williams AW, Gores GJ, Halamka JD, Morice WG, Soundararajan V. Long-term SARS-CoV-2 RNA shedding and its temporal association to IgG seropositivity. Cell Death Discov 2020; 6:138. [PMID: 33298894 PMCID: PMC7709096 DOI: 10.1038/s41420-020-00375-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/05/2020] [Accepted: 11/13/2020] [Indexed: 12/13/2022] Open
Abstract
Longitudinal characterization of SARS-CoV-2 PCR testing from COVID-19 patient's nasopharynx and its juxtaposition with blood-based IgG-seroconversion diagnostic assays is critical to understanding SARS-CoV-2 infection durations. Here, we retrospectively analyze 851 SARS-CoV-2-positive patients with at least two positive PCR tests and find that 99 of these patients remain SARS-CoV-2-positive after 4 weeks from their initial diagnosis date. For the 851-patient cohort, the mean lower bound of viral RNA shedding was 17.3 days (SD: 7.8), and the mean upper bound of viral RNA shedding from 668 patients transitioning to confirmed PCR-negative status was 22.7 days (SD: 11.8). Among 104 patients with an IgG test result, 90 patients were seropositive to date, with mean upper bound of time to seropositivity from initial diagnosis being 37.8 days (95% CI: 34.3-41.3). Our findings from juxtaposing IgG and PCR tests thus reveal that some SARS-CoV-2-positive patients are non-hospitalized and seropositive, yet actively shed viral RNA (14 of 90 patients). This study emphasizes the need for monitoring viral loads and neutralizing antibody titers in long-term non-hospitalized shedders as a means of characterizing the SARS-CoV-2 infection lifecycle.
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Affiliation(s)
- Vineet Agarwal
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | - A J Venkatakrishnan
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | - Arjun Puranik
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | - Christian Kirkup
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA
| | | | | | | | | | | | | | | | | | | | | | | | - William G Morice
- Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Laboratories, Rochester, MN, USA
| | - Venky Soundararajan
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA, 02142, USA.
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17
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Pawlowski C, Wagner T, Puranik A, Murugadoss K, Loscalzo L, Venkatakrishnan AJ, Pruthi RK, Houghton DE, O'Horo JC, Morice WG, Williams AW, Gores GJ, Halamka J, Badley AD, Barnathan ES, Makimura H, Khan N, Soundararajan V. Inference from longitudinal laboratory tests characterizes temporal evolution of COVID-19-associated coagulopathy (CAC). eLife 2020; 9:59209. [PMID: 32804081 PMCID: PMC7473767 DOI: 10.7554/elife.59209] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/14/2020] [Indexed: 01/05/2023] Open
Abstract
Temporal inference from laboratory testing results and triangulation with clinical outcomes extracted from unstructured electronic health record (EHR) provider notes is integral to advancing precision medicine. Here, we studied 246 SARS-CoV-2 PCR-positive (COVIDpos) patients and propensity-matched 2460 SARS-CoV-2 PCR-negative (COVIDneg) patients subjected to around 700,000 lab tests cumulatively across 194 assays. Compared to COVIDneg patients at the time of diagnostic testing, COVIDpos patients tended to have higher plasma fibrinogen levels and lower platelet counts. However, as the infection evolves, COVIDpos patients distinctively show declining fibrinogen, increasing platelet counts, and lower white blood cell counts. Augmented curation of EHRs suggests that only a minority of COVIDpos patients develop thromboembolism, and rarely, disseminated intravascular coagulopathy (DIC), with patients generally not displaying platelet reductions typical of consumptive coagulopathies. These temporal trends provide fine-grained resolution into COVID-19 associated coagulopathy (CAC) and set the stage for personalizing thromboprophylaxis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - William G Morice
- Mayo Clinic, Rochester, United States.,Mayo Clinic Laboratories, Rochester, United States
| | | | | | - John Halamka
- Mayo Clinic, Rochester, United States.,Mayo Clinic Platform, Rochester, United States
| | | | - Elliot S Barnathan
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
| | - Hideo Makimura
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
| | - Najat Khan
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
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18
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Agarwal V, Venkatakrishnan AJ, Puranik A, Kirkup C, Lopez-Marquez A, Challener DW, O’Horo JC, Binnicker MJ, Kremers WK, Faubion WA, Badley AD, Williams AW, Gores GJ, Halamka JD, Morice WG, Soundararajan V. Long-term SARS-CoV-2 RNA Shedding and its Temporal Association to IgG Seropositivity. medRxiv 2020:2020.06.02.20120774. [PMID: 32577666 PMCID: PMC7302207 DOI: 10.1101/2020.06.02.20120774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Analysis of 851 COVID-19 patients with a SARS-CoV-2-positive PCR at follow-up shows 99 patients remained SARS-CoV-2-positive after four weeks from initial diagnosis. Surprisingly, a majority of these long-term viral RNA shedders were not hospitalized (61 of 99), with variable PCR Crossing point values over the month post diagnosis. For the 851-patient cohort, the mean lower bound of viral RNA shedding was 17.3 days (SD: 7.8), and the mean upper bound of viral RNA shedding from 668 patients transitioning to confirmed PCR-negative status was 22.7 days (SD: 11.8). Among 104 patients with an IgG test result, 90 patients were seropositive to date, with mean upper bound of time to seropositivity from initial diagnosis being 37.8 days (95%CI: 34.3-41.3). Juxtaposing IgG/PCR tests revealed that 14 of 90 patients are non-hospitalized and seropositive yet shed viral RNA. This study emphasizes the need for monitoring viral loads and neutralizing antibody titers in long-term shedders.
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Affiliation(s)
- Vineet Agarwal
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | - AJ Venkatakrishnan
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | - Arjun Puranik
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | - Christian Kirkup
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
| | | | | | | | | | | | | | | | | | | | - John D. Halamka
- Mayo Clinic, Rochester MN, USA
- Mayo Clinic Platform, Rochester MN, USA
| | - William G. Morice
- Mayo Clinic, Rochester MN, USA
- Mayo Clinic Laboratories, Rochester MN, USA
| | - Venky Soundararajan
- nference, inc., One Main Street, Suite 400, East Arcade, Cambridge, MA 02142, USA
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19
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Wagner T, Shweta FNU, Murugadoss K, Awasthi S, Venkatakrishnan AJ, Bade S, Puranik A, Kang M, Pickering BW, O'Horo JC, Bauer PR, Razonable RR, Vergidis P, Temesgen Z, Rizza S, Mahmood M, Wilson WR, Challener D, Anand P, Liebers M, Doctor Z, Silvert E, Solomon H, Anand A, Barve R, Gores G, Williams AW, Morice WG, Halamka J, Badley A, Soundararajan V. Augmented curation of clinical notes from a massive EHR system reveals symptoms of impending COVID-19 diagnosis. eLife 2020; 9:e58227. [PMID: 32633720 PMCID: PMC7410498 DOI: 10.7554/elife.58227] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/06/2020] [Indexed: 01/09/2023] Open
Abstract
Understanding temporal dynamics of COVID-19 symptoms could provide fine-grained resolution to guide clinical decision-making. Here, we use deep neural networks over an institution-wide platform for the augmented curation of clinical notes from 77,167 patients subjected to COVID-19 PCR testing. By contrasting Electronic Health Record (EHR)-derived symptoms of COVID-19-positive (COVIDpos; n = 2,317) versus COVID-19-negative (COVIDneg; n = 74,850) patients for the week preceding the PCR testing date, we identify anosmia/dysgeusia (27.1-fold), fever/chills (2.6-fold), respiratory difficulty (2.2-fold), cough (2.2-fold), myalgia/arthralgia (2-fold), and diarrhea (1.4-fold) as significantly amplified in COVIDpos over COVIDneg patients. The combination of cough and fever/chills has 4.2-fold amplification in COVIDpos patients during the week prior to PCR testing, in addition to anosmia/dysgeusia, constitutes the earliest EHR-derived signature of COVID-19. This study introduces an Augmented Intelligence platform for the real-time synthesis of institutional biomedical knowledge. The platform holds tremendous potential for scaling up curation throughput, thus enabling EHR-powered early disease diagnosis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - William G Morice
- Mayo ClinicRochesterUnited States
- Mayo Clinic LaboratoriesRochesterUnited States
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20
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Wagner T, Shweta F, Murugadoss K, Awasthi S, Venkatakrishnan AJ, Bade S, Puranik A, Kang M, Pickering BW, O'Horo JC, Bauer PR, Razonable RR, Vergidis P, Temesgen Z, Rizza S, Mahmood M, Wilson WR, Challener D, Anand P, Liebers M, Doctor Z, Silvert E, Solomon H, Anand A, Barve R, Gores G, Williams AW, Morice WG, Halamka J, Badley A, Soundararajan V. Augmented curation of clinical notes from a massive EHR system reveals symptoms of impending COVID-19 diagnosis. eLife 2020; 9:58227. [PMID: 32633720 DOI: 10.1101/2020.04.19.20067660] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/06/2020] [Indexed: 05/27/2023] Open
Abstract
Understanding temporal dynamics of COVID-19 symptoms could provide fine-grained resolution to guide clinical decision-making. Here, we use deep neural networks over an institution-wide platform for the augmented curation of clinical notes from 77,167 patients subjected to COVID-19 PCR testing. By contrasting Electronic Health Record (EHR)-derived symptoms of COVID-19-positive (COVIDpos; n = 2,317) versus COVID-19-negative (COVIDneg; n = 74,850) patients for the week preceding the PCR testing date, we identify anosmia/dysgeusia (27.1-fold), fever/chills (2.6-fold), respiratory difficulty (2.2-fold), cough (2.2-fold), myalgia/arthralgia (2-fold), and diarrhea (1.4-fold) as significantly amplified in COVIDpos over COVIDneg patients. The combination of cough and fever/chills has 4.2-fold amplification in COVIDpos patients during the week prior to PCR testing, in addition to anosmia/dysgeusia, constitutes the earliest EHR-derived signature of COVID-19. This study introduces an Augmented Intelligence platform for the real-time synthesis of institutional biomedical knowledge. The platform holds tremendous potential for scaling up curation throughput, thus enabling EHR-powered early disease diagnosis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - William G Morice
- Mayo Clinic, Rochester, United States
- Mayo Clinic Laboratories, Rochester, United States
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21
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Venkatakrishnan AJ, Puranik A, Anand A, Zemmour D, Yao X, Wu X, Chilaka R, Murakowski DK, Standish K, Raghunathan B, Wagner T, Garcia-Rivera E, Solomon H, Garg A, Barve R, Anyanwu-Ofili A, Khan N, Soundararajan V. Knowledge synthesis of 100 million biomedical documents augments the deep expression profiling of coronavirus receptors. eLife 2020; 9:58040. [PMID: 32463365 PMCID: PMC7371427 DOI: 10.7554/elife.58040] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022] Open
Abstract
The COVID-19 pandemic demands assimilation of all biomedical knowledge to decode mechanisms of pathogenesis. Despite the recent renaissance in neural networks, a platform for the real-time synthesis of the exponentially growing biomedical literature and deep omics insights is unavailable. Here, we present the nferX platform for dynamic inference from over 45 quadrillion possible conceptual associations from unstructured text, and triangulation with insights from single-cell RNA-sequencing, bulk RNA-seq and proteomics from diverse tissue types. A hypothesis-free profiling of ACE2 suggests tongue keratinocytes, olfactory epithelial cells, airway club cells and respiratory ciliated cells as potential reservoirs of the SARS-CoV-2 receptor. We find the gut as the putative hotspot of COVID-19, where a maturation correlated transcriptional signature is shared in small intestine enterocytes among coronavirus receptors (ACE2, DPP4, ANPEP). A holistic data science platform triangulating insights from structured and unstructured data holds potential for accelerating the generation of impactful biological insights and hypotheses.
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Affiliation(s)
| | | | | | | | - Xiang Yao
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
| | - Xiaoying Wu
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
| | | | | | - Kristopher Standish
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
| | | | | | | | | | | | | | - Anuli Anyanwu-Ofili
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
| | - Najat Khan
- Janssen pharmaceutical companies of Johnson & Johnson (J&J), Spring House, United States
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22
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Anand P, Puranik A, Aravamudan M, Venkatakrishnan AJ, Soundararajan V. SARS-CoV-2 strategically mimics proteolytic activation of human ENaC. eLife 2020; 9:58603. [PMID: 32452762 PMCID: PMC7343387 DOI: 10.7554/elife.58603] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 05/25/2020] [Indexed: 12/11/2022] Open
Abstract
Molecular mimicry is an evolutionary strategy adopted by viruses to exploit the host cellular machinery. We report that SARS-CoV-2 has evolved a unique S1/S2 cleavage site, absent in any previous coronavirus sequenced, resulting in the striking mimicry of an identical FURIN-cleavable peptide on the human epithelial sodium channel α-subunit (ENaC-α). Genetic alteration of ENaC-α causes aldosterone dysregulation in patients, highlighting that the FURIN site is critical for activation of ENaC. Single cell RNA-seq from 66 studies shows significant overlap between expression of ENaC-α and the viral receptor ACE2 in cell types linked to the cardiovascular-renal-pulmonary pathophysiology of COVID-19. Triangulating this cellular characterization with cleavage signatures of 178 proteases highlights proteolytic degeneracy wired into the SARS-CoV-2 lifecycle. Evolution of SARS-CoV-2 into a global pandemic may be driven in part by its targeted mimicry of ENaC-α, a protein critical for the homeostasis of airway surface liquid, whose misregulation is associated with respiratory conditions. Viruses hijack the cellular machinery of humans to infect their cells and multiply. The virus causing the global COVID-19 pandemic, SARS-CoV-2, is no exception. Identifying which proteins in human cells the virus co-opts is crucial for developing new ways to diagnose, prevent and treat COVID-19 infections. SARS-CoV-2 is covered in spike-shaped proteins, which the virus uses to gain entry into cells. First, the spikes bind to a protein called ACE2, which is found on the cells that line the respiratory tract and lungs. SARS-CoV-2 then exploits enzymes called proteases to cut, or cleave, its spikes at a specific site which allows the virus to infiltrate the host cell. Proteases identify which proteins to target based on the sequence of amino acids – the building blocks of proteins – at the cleavage site. However, it remained unclear which human proteases SARS-CoV-2 co-opts and whether its cut site is similar to human proteins. Now, Anand et al. show that the spike proteins on SARS-CoV-2 may have the same sequence of amino acids at its cut site as a human epithelial channel protein called ENaC-α. This channel is important for maintaining the balance of salt and water in many organs including the lungs. Further analyses showed that ENaC-α is often found in the same types of human lung and respiratory tract cells as ACE2. This suggests that SARS-CoV-2 may use the same proteases that cut ENaC-α to get inside human respiratory cells. It is possible that by hijacking the cutting mechanism for ENaC-α, SARS-CoV-2 interferes with the balance of salt and water in the lungs of COVID-19 patients. This may help explain why the virus causes severe respiratory symptoms. However, more studies are needed to confirm that the proteases that cut ENaC-α also cut the spike proteins on SARS-CoV-2, and how this affects the respiratory health of COVID-19 patients.
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23
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Nilima, Puranik A, Shreenidhi SM, Rai SN. Spatial evaluation of prevalence, pattern and predictors of cervical cancer screening in India. Public Health 2019; 178:124-136. [PMID: 31678693 DOI: 10.1016/j.puhe.2019.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/23/2019] [Accepted: 09/10/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To investigate the social determinants of cervical cancer screening and report the locations vulnerable to poor utilization of cervical cancer screening services. STUDY DESIGN An ecological study with the data derived from fourth round of the National Family Health Survey conducted in India in the period 2015-2016. METHODS The study focused on the percentage of women who have never undergone cervical cancer screening across 639 districts in India. Moran's I statistic was used to investigate the overall clustering of location. The Getis-Ord Gi* statistic was used for the detection of significant local clusters. Spatial error, spatial lag, spatial Durbin and spatial Durbin error models were compared, and the model with best fit was reported. ArcGIS, GeoDa and R software were used for the analysis. RESULTS The existence of spatial autocorrelation (Moran's I = 0.61) necessitates the consideration of spatial component while studying the screening data. A significant clustering of districts with poor screening has been observed in the North-Central and North-Eastern regions of India. The geographic arrangement of the percentage of women who have undergone cervical cancer screening was associated with the percentage of women with poor wealth index (P < 0.001), not using a modern method of contraception (P < 0.001), residing in rural areas (P = 0.033) and never heard of sexually transmitted infection (P = 0.014). The range of percentage of women getting cervix screened for cancer was 0.5-68.4%, presenting the heterogeneity among the population elements. CONCLUSION A higher risk of poor cervical cancer screening is observed in the districts where most of the women have poor wealth index, reside in urban area, have never heard of sexually transmitted infection and do not use a modern method of contraception.
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Affiliation(s)
- Nilima
- Department of Statistics, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India; Indian Institute of Public Health, Public Health Foundation of India, Gurugram, India; Department of Biostatistics, All India Institute of Medical Sciences, Delhi, India.
| | - A Puranik
- Department of Statistics, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India.
| | - S M Shreenidhi
- Department of Statistics, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India.
| | - S N Rai
- Biostatistics and Bioinformatics Facility, James Graham Brown Cancer Center, University of Louisville, Kentucky, USA; Department of Bioinformatics & Biostatistics, School of Public Health & Information Sciences, University of Louisville, Kentucky, USA.
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24
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Rajpurohit A, Patil V, Noronha V, Joshi A, Menon N, Puranik A, Purandare N, Mahajan A, Mummudi N, Krishnatry R, Kumar R, Yadav S, Prabhash K. Multidisciplinary brain metastasis clinic: Is it effective and worthwhile? Ann Oncol 2019. [DOI: 10.1093/annonc/mdz419.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Toledo-Flores D, Schwarz N, Di Bartolo B, Delacroix S, Puranik A, Simari R, Nicholls S, Psaltis P. Murine Adventitial Sca-1+CD45+ Progenitor Cells are Proangiogenic and Give Rise to Vasa Vasorum in Atherosclerosis. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Toledo-Flores D, Schwarz N, Di Bartolo B, Puranik A, Simari R, Nicholls S, Psaltis P. CX3CR1 Identifies Adventitial Macrophage Progenitor Cells (AMPCs), a Local Source of Self-Renewing Macrophages in Postnatal Arteries. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
This report describes a case of manic symptoms induced by olanzapine in an 85-year-old female with a 3 year history of delusional disorder. She was treated in the past with trifluoperazine and risperidone. Symptoms were severe enough to require detention in hospital. Florid manic symptoms resolved two weeks after stopping olanzapine while only using 1 mg of haloperidol as required.
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28
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King A, Ryan P, Puranik A, Doey L, Barnes P. Leptomeningeal melanoma and Creutzfeldt-Jakob disease in a patient with chronic lymphocytic leukaemia. Neuropathol Appl Neurobiol 1999; 25:345-8. [PMID: 10476052 DOI: 10.1046/j.1365-2990.1999.00177.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A 78-year-old woman with known chronic lymphocytic leukaemia (CLL) was admitted to a psychiatric unit because of rapidly declining cognitive function. Clinical examination also revealed cerebellar signs and she later became akinetic and mute. She deteriorated and died of bronchopneumonia. The histology from the post-mortem confirmed the presence of CLL in the lymph nodes and she was also found to have diffuse leptomeningeal melanoma. In addition, there was extensive prion protein deposition in the cerebral cortex, but without significant spongiosis. The astrocytosis that was present appeared superficial only. Furthermore, prion protein appeared to be co-expressed with betaA4 in the form of plaques. The patient therefore had evidence of sporadic Creutzfeldt-Jakob disease (CJD) in addition to meningeal melanoma and CLL. This case further illustrates the importance of employing prion protein immunohistochemistry in suspected cases of CJD, especially where the histology is atypical.
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Affiliation(s)
- A King
- Department of Neuropathology, Institute of Psychiatry, London
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29
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30
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Affiliation(s)
- M Philpot
- Mental Health in the Elderly Directorate, Lewisham, England
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31
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Phillips JD, Myers DH, King JR, Armond AD, Derham C, Puranik A, Corbett JA, Birch NJ. Pharmacokinetics of lithium in patients treated with controlled release lithium formulations. Int Clin Psychopharmacol 1990; 5:65-9. [PMID: 2332609 DOI: 10.1097/00004850-199001000-00007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
There has long been discussion as to the relative merits of the lithium formulations available in the UK. Two of these have been shown to exhibit similar pharmacokinetics in normal volunteers and both are now marketed as controlled release formulations. In this study the serum lithium profiles of these formulations were compared in patients at two centres during the first 4 h after the dose, and at 24 h. We were unable to show any significant difference between the formulations in respect of maximum serum lithium concentrations or the concentration at each time point.
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Abstract
Twenty-four patients with biopsy-proved squamous-cell carcinoma of the penis underwent external-beam radiation therapy between 1966 and 1980. Fifteen were treated for the primary tumor and 9 for metastatic inguinal lymphadenopathy; no patient received prophylactic nodal irradiation. Doses ranged from 4,500 rad (45 Gy)/15 fractions/3 wk. to 6,400 rad (64 Gy)/32 fractions/6 1/2 wk. Seven out of 9 tumors in stage I, 2/3 in stage II, and 1/3 in stage IV were controlled for three years. Control of fixed, inoperable groin nodes was poor, and none of these patients survived beyond 1 1/2 years.
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