{"id":1751,"date":"2022-10-31T18:37:06","date_gmt":"2022-10-31T18:37:06","guid":{"rendered":"https:\/\/blogs.bmj.com\/bmjopen\/?p=1751"},"modified":"2022-10-31T18:37:06","modified_gmt":"2022-10-31T18:37:06","slug":"top-10-most-read-in-september-folic-acid-and-methotrexate-use-and-their-association-with-covid-19","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/bmjopen\/2022\/10\/31\/top-10-most-read-in-september-folic-acid-and-methotrexate-use-and-their-association-with-covid-19\/","title":{"rendered":"Top 10 most read in September: Folic acid and methotrexate use, and their association with COVID-19"},"content":{"rendered":"<p><a href=\"https:\/\/blogs.bmj.com\/bmjopen\/files\/2022\/10\/mask-g451d32319_1280.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1752 size-medium\" title=\"Image by cromaconceptovisual from Pixabay \" src=\"https:\/\/blogs.bmj.com\/bmjopen\/files\/2022\/10\/mask-g451d32319_1280-300x212.png\" alt=\"\" width=\"300\" height=\"212\" srcset=\"https:\/\/blogs.bmj.com\/bmjopen\/files\/2022\/10\/mask-g451d32319_1280-300x212.png 300w, https:\/\/blogs.bmj.com\/bmjopen\/files\/2022\/10\/mask-g451d32319_1280-1024x724.png 1024w, https:\/\/blogs.bmj.com\/bmjopen\/files\/2022\/10\/mask-g451d32319_1280-768x543.png 768w, https:\/\/blogs.bmj.com\/bmjopen\/files\/2022\/10\/mask-g451d32319_1280-640x453.png 640w, https:\/\/blogs.bmj.com\/bmjopen\/files\/2022\/10\/mask-g451d32319_1280.png 1280w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400\">While there has been some movement in our top 10 list this month, <a href=\"https:\/\/bmjopen.bmj.com\/content\/11\/12\/e048296\" target=\"_blank\" rel=\"noopener\">Zemedikun<em> et al<\/em><\/a>. have retained the top spot. While COVID-19 still features in our list of most-read papers, we are starting to see a wider variety of topics beginning to make the cut.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Our only new entry this month is by Topless <em>et al<\/em>., who performed a <a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/8\/e062945#block-system-main\" target=\"_blank\" rel=\"noopener\">case-control analysis<\/a> on data from the UK Biobank<\/span><span style=\"font-weight: 400\">. The authors aimed to determine whether having a methotrexate and\/or folic acid prescription was associated with differential risk for COVID-19 diagnosis or mortality. Using logistic regression statistical models, they found a 1.5-fold increased risk for COVID-19 diagnosis and 2.6-fold increased risk for COVID-19-related death among those who had been prescribed folic acid supplementation. They found that prescription of methotrexate was not associated with an increased risk of diagnosis of COVID-19 and they were unable to make an estimate for COVID-19-related death in the small sample of those who were only prescribed methotrexate. While the data come from a large population-based cohort, the authors acknowledge that their findings cannot be generalised outside of the middle-aged (&gt;45 years of age), white European demographic that dominates the UK Biobank cohort. Furthermore, owing to the observational nature of the data, causality cannot be inferred from their findings.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Below is the full list of papers that were the most read in <\/span><i><span style=\"font-weight: 400\">BMJ Open<\/span><\/i><span style=\"font-weight: 400\"> during September 2022.<\/span><\/p>\n<table style=\"border-collapse: collapse\" border=\"1\" cellspacing=\"5\" cellpadding=\"5\">\n<caption>*<i>Most read figures are based on pdf downloads and full text views. Abstract views are excluded.<\/i><\/caption>\n<tbody>\n<tr>\n<td><b>Rank* <\/b><\/td>\n<td><b>Author(s) <\/b><\/td>\n<td><b>Title<\/b><\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td><span style=\"font-weight: 400\">Zemedikun <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/11\/12\/e048296\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Burden of chronic diseases associated with periodontal diseases: a retrospective cohort study using UK primary care data<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>van der Meulen<i> et al<\/i>.<\/td>\n<td><a href=\"http:\/\/bmjopen.bmj.com\/cgi\/content\/short\/bmjopen;12\/8\/e062446\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Association between use of systemic and inhaled glucocorticoids and changes in brain volume and white matter microstructure: a cross-sectional study using data from the UK Biobank<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td><span style=\"font-weight: 400\">Burns <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/7\/e056517\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Systematic review and meta-analysis to examine intrapartum interventions, and maternal and neonatal outcomes following immersion in water during labour and waterbirth<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td><span style=\"font-weight: 400\">Risch <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/6\/e058274\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Investigation of the use of a sensor bracelet for the presymptomatic detection of changes in physiological parameters related to COVID-19: an interim analysis of a prospective cohort study (COVI-GAPP)<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td><span style=\"font-weight: 400\">Osanlou <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/7\/e055551\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Adverse drug reactions, multimorbidity and polypharmacy: a prospective analysis of 1 month of medical admissions <\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td><span style=\"font-weight: 400\">Bergeron-Boucher <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/8\/e059964\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Probability of males to outlive females: an international comparison from 1751 to 2020 <\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td><span style=\"font-weight: 400\">Walach <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/8\/e060555\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Why do people consent to receiving SARS-CoV-2 vaccinations? A representative survey in Germany<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td><span style=\"font-weight: 400\">Rehm <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/7\/e054161\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Differential impact of minimum unit pricing on alcohol consumption between Scottish men and women: controlled interrupted time series analysis <\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>9<\/td>\n<td><span style=\"font-weight: 400\">Topless <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/8\/e062945\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Folic acid and methotrexate use and their association with COVID-19 diagnosis and mortality: a case-control analysis from the UK Biobank<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td>10<\/td>\n<td><span style=\"font-weight: 400\">Fukuma <\/span><i>et al<\/i>.<\/td>\n<td><a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/7\/e056996\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Impact of the national health guidance intervention for obesity and cardiovascular risks on healthcare utilisation and healthcare spending in working-age Japanese cohort: regression discontinuity design<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400\">Like what you see? Follow this <a href=\"https:\/\/bmjopen.bmj.com\/content\/12\/10?current-issue=y\" target=\"_blank\" rel=\"noopener\">link<\/a> for all our most recent content.<\/span><\/p>\n<p>&nbsp;<!--TrendMD v2.4.8--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>While there has been some movement in our top 10 list this month, Zemedikun et al. have retained the top spot. While COVID-19 still features in our list of most-read papers, we are starting to see a wider variety of topics beginning to make the cut. Our only new entry this month is by Topless [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/blogs.bmj.com\/bmjopen\/2022\/10\/31\/top-10-most-read-in-september-folic-acid-and-methotrexate-use-and-their-association-with-covid-19\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":406,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2470,2471],"tags":[],"class_list":["post-1751","post","type-post","status-publish","format-standard","hentry","category-content","category-highly-accessed"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Top 10 most read in September: Folic acid and methotrexate use, and their association with COVID-19 - BMJ Open<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.bmj.com\/bmjopen\/2022\/10\/31\/top-10-most-read-in-september-folic-acid-and-methotrexate-use-and-their-association-with-covid-19\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top 10 most read in September: Folic acid and methotrexate use, and their association with COVID-19 - BMJ Open\" \/>\n<meta property=\"og:description\" content=\"While there has been some movement in our top 10 list this month, Zemedikun et al. have retained the top spot. 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