0506b5e5664de6618ba073285e0f9bc561c5e959
abenetpa
  Tue Sep 15 01:57:52 2020 -0700
improved desc page after covid19 HGI folks feedback refs #26129

diff --git src/hg/makeDb/trackDb/human/covidHgiGwas.html src/hg/makeDb/trackDb/human/covidHgiGwas.html
index c44752f..88d2789 100644
--- src/hg/makeDb/trackDb/human/covidHgiGwas.html
+++ src/hg/makeDb/trackDb/human/covidHgiGwas.html
@@ -1,96 +1,98 @@
 <H2>Description</H2>
 <p>
 This track set shows <b>GWAS meta-analyses</b> from the 
 <a target=_blank href="https://www.covid19hg.org/">
-<b>COVID-19 Host Genetics Initiative (HGI)</b></a>, 
-a collaborative project bringing together the human genetics community to facilitate 
+<b>COVID-19 Host Genetics Initiative (HGI)</b></a>: 
+a collaborative effort to facilitate 
 the generation, analysis and sharing of COVID-19 host genetics research.
 The COVID-19 HGI organizes meta-analyses across multiple studies contributed by 
 <a target="_blank" href="https://www.covid19hg.org/partners/">partners world-wide</a>
-to learn the genetic determinants of SARS-CoV-2 infection susceptibility, disease severity and 
-outcomes, and provides a platform to share the results from such activities, as well as 
-the individual-level data where possible.
+to identify the genetic determinants of SARS-CoV-2 infection susceptibility and disease severity 
+and outcomes. Moreover, the COVID-19 HGI also aims to provide a platform for study partners to 
+share analytical results in the form of summary statistics and/or individual level data where 
+possible.
 </p>
+
 <p>
-The specific phenotypes studied by the COVID-19 HGI are those that benefit
-from maximal sample size. The primary analysis focuses on disease severity.
-Two meta-analyses are represented in this track:
+The specific phenotypes studied by the COVID-19 HGI are those that benefit from maximal sample 
+size: primary analysis on disease severity. Two meta-analyses are represented in this track:
 </p>
 
 <ul>
 <li><b>ANA_C2_V2</b>: covid vs. population (6696 cases from 18 studies)</li>
 <li><b>ANA_B2_V2</b>: hospitalized covid vs. population (3199 cases from 8 studies)</li>
 </ul>
 
 <H2>Display Conventions</H2>
 <p>
 Displayed items are colored by <b>GWAS effect</b>:  red for positive, blue for negative. 
-The height of the item reflects the <b>effect size</b> (log OR scale).
-The color saturation indicates <b>statistical significance</b>: smaller than .05 pValue are 
-brightly colored (bright red
+The height of the item reflects the <b>effect size</b> (beta coefficient).
+The color saturation indicates <b>statistical significance</b>: <em>P</em> values smaller than .05
+are brightly colored (bright red
 <span style='background-color: #ff0000;'>&nbsp;&nbsp;</span>
 , bright blue
 <span style='background-color: #0000ff;'>&nbsp;&nbsp;</span>
 ),
-those with less significance are paler (light red
+those with less significance (<em>P</em> >= .05) are paler (light red
 <span style='background-color: #ffa0a0;'>&nbsp;&nbsp;</span>
 , light blue
 <span style='background-color: #a0a0ff;'>&nbsp;&nbsp;</span>
-).
+). For better visualization of the data, only SNPs with <em>P</em> values smaller than .03 are 
+displayed by default. 
 </p>
 
 <p>
 Each track has separate display controls and data can be filtered according to the
-<b>number of studies</b>, <b>minimum -log10 p-value</b>, and the 
-<b>effect size on log(OR) scale</b>, using the track <b>Configure</b> options.
+<b>number of studies</b>, <b>minimum -log10 <em>P</em> value</b>, and the
+<b>effect size (beta coefficient)</b>, using the track <b>Configure</b> options.
 </p>
 
 <p>
 <b>Mouseover</b> on items shows the rs ID (or chrom:pos if none assigned), both the non-effect 
-and effect alleles, 
-the effect size on log(OR) scale, the -log10 p-value, and the number of studies.
+and effect alleles, the effect size (beta coefficient), the <em>P</em> value, and the number of 
+studies.
 Additional information on each variant can be found on the details page by clicking on the item.
 </p>  
 
 <H2>Methods</H2>
 <p>
-Data were generated from genome wide SNP arrays, exome and genome sequencing, leveraging the impact 
-of both common and rare variants. Statistical analysis takes into account differences between 
-sex, ancestry, and date of sample collection. More information about the prospective studies, 
-processing pipeline, results and data sharing can be found 
+Data were generated from genome-wide SNP array and whole exome and genome sequencing: leveraging 
+the impact of both common and rare variants. The statistical analysis performed takes into account 
+differences between sex, ancestry, and date of sample collection. More information about the 
+prospective studies, processing pipeline, results and data sharing can be found 
 <a target=_blank href="https://www.covid19hg.org/about/">here</a>.
 </p>
 
 
 <H2>Data Access</H2>
 <p>
 The data underlying these tracks and summary statistics results are publicly available in 
 <a target=_blank href="https://www.covid19hg.org/results">COVID19-hg Release 3 (June 2020)</a>.
 The raw data can be explored interactively with the <a target="_blank" href="../cgi-bin/hgTables">
 Table Browser</a>, or the <a target="_blank" href="../cgi-bin/hgIntegrator">Data Integrator</a>. 
 Please refer to
 our <a href="https://groups.google.com/a/soe.ucsc.edu/forum/#!forum/genome"
 target="_blank">mailing list archives</a> for questions, or our <a target="_blank"
 href="../FAQ/FAQdownloads.html#download36">Data Access FAQ</a> for more information.
 </p>
 
 <H2>Credits</H2>
 <p>
 Thanks to the COVID-19 Host Genetics Initiative contributors and project leads for making these 
-data available, and in particular to Rachel Liao and Juha Karjalainen at the Broad Institute for
-their review and input during browser track development.
+data available, and in particular to Rachel Liao, Juha Karjalainen, and Kumar Veerapen at the 
+Broad Institute for their review and input during browser track development.
 </p>
 
 <H2>References</H2>
 
 <p>
 COVID-19 Host Genetics Initiative.
 <a href="https://www.ncbi.nlm.nih.gov/pubmed/32404885" target="_blank">
 The COVID-19 Host Genetics Initiative, a global initiative to elucidate the role of host genetic
 factors in susceptibility and severity of the SARS-CoV-2 virus pandemic</a>.
 <em>Eur J Hum Genet</em>. 2020 Jun;28(6):715-718.
 PMID: <a href="https://www.ncbi.nlm.nih.gov/pubmed/32404885" target="_blank">32404885</a>; PMC: <a
 href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7220587/" target="_blank">PMC7220587</a>
 </p>