Author: Emily R Adams; Rekha Anand; Monique I Andersson; Kathryn Auckland; J Kenneth Baillie; Eleanor Barnes; John Bell; Tamsin Berry; Sagida Bibi; Miles Carroll; Senthil Chinnakannan; Elizabeth Clutterbuck; Richard J Cornall; Derrick W Crook; Thushan De Silva; Wanwisa Dejnirattisai; Kate E Dingle; Christina Dold; David W Eyre; Helen Farmer; Sarah J Hoosdally; Alistair Hunter; Katie Jeffrey; Paul Klenerman; Julian Knight; Clarice Knowles; Andrew J Kwok; Ullrich Leuschner; Chang Liu; Cesar Lopez-Camacho; Philippa C Matthews; Hannah McGivern; Alexander J Mentzer; Jonathan Milton; Juthathip Mongkolsapaya; Shona C Moore; Marta S Oliveira; Fiona Pereira; Timothy Peto; Rutger J Ploeg; Andrew Pollard; Tessa Prince; David J Roberts; Justine K Rudkin; Gavin R Screaton; Malcolm G Semple; Donal T Skelly; Elliot Nathan Smith; Julie Staves; David Stuart; Piyada Supasa; Tomas Surik; Pat Tsang; Lance Turtle; A Sarah Walker; Beibei Wang; Charlotte Washington; Nicholas Watkins; James Whitehouse; Sally Beer; Robert Levin; Alexis Espinosa; Dominique Georgiou; Jose Carlos Martinez Garrido; Hannah Thraves; Elena Perez Lopez; Maria del Rocio Fernandez Mendoza; Alberto Jose Sobrino Diaz; Veronica Sanchez
Title: Evaluation of antibody testing for SARS-Cov-2 using ELISA and lateral flow immunoassays Document date: 2020_4_20
ID: 5trox1i5_14
Snippet: Analyses were conducted using R (version 3.6.3) and Stata (version 15.1), with additional plots generated using GraphPad Prism (version 8.3.1). Binomial 95% confidence intervals (CI) were calculated for all proportions. The association between ELISA results and time since symptom onset, severity, need for hospital admission and age was estimated using multivariable linear regression, without variable selection. Non-linearity in relationships with.....
Document: Analyses were conducted using R (version 3.6.3) and Stata (version 15.1), with additional plots generated using GraphPad Prism (version 8.3.1). Binomial 95% confidence intervals (CI) were calculated for all proportions. The association between ELISA results and time since symptom onset, severity, need for hospital admission and age was estimated using multivariable linear regression, without variable selection. Non-linearity in relationships with continuous factors was included via natural cubic splines. Differences between LFIA devices were estimated using mixed effects logistic regression models, allowing for each device being tested on overlapping sample sets. Differences between devices were compared with Benjamini-Hochberg corrected p-value thresholds. (Further details in Supplementary Material.)
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