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Nigel Marriott's Blog

An independent statistician using data to understand our world and to predict the future

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Ethnicity #2 – How many categories are there?

September 13, 2021 By Nigel

When I submitted my evidence to the Commission on Racial and Ethnic Disparities (CRED) in November 2020, I recommended that ethnicity pay gap reporting (EPGR) using the Big 5 ethnicities of White, Asian, Black, Mixed & Other be made mandatory.   In the CRED report published in March 2021, recommendation 24 called for analysis of ethnicity to use the Office of National Statistics (ONS) 18+1 ethnicities as much as possible and it is my opinion this is one of the reasons why CRED stopped short of recommending mandatory EPGR in recommendation 9.  In June 2021, I published 7 + 5 recommendations for improving gender pay gap reporting (GPGR) and I made it clear that all 12 of my recommendations would also apply to any EPGR system introduced by the government. However, I stated my 2nd recommendation on number of categories to be reported needed more details before it could be applied to EPGR and this article will fill in those details whilst also recording my response to recommendations 9, 10, 23 & 24 of the CRED report.

[Read more…] about Ethnicity #2 – How many categories are there?

Filed Under: Diversity Tagged With: Categorisation, CRED, Ethnicity, ONS, Pay Gaps, Sample size, Segmentation

Pay Gaps #22 – My 7 + 5 recommendations for amending UK pay gap legislation

June 30, 2021 By Nigel

When gender pay gap reporting was introduced by the government for the 2017 snapshot date for all employers with a headcount of 250 or more, it was made clear they would evaluate how the legislation had worked after 5 years.  We are now in the 5th year of pay gap reporting and I would like to submit to the government 7 recommendations to improve the way employers’ data is reported and 5 recommendations to improve the data used in the calculations and to reduce various distortions.

[Read more…] about Pay Gaps #22 – My 7 + 5 recommendations for amending UK pay gap legislation

Filed Under: Diversity, Featured blog Tagged With: data quality, Equality Act 2010, Ethnicity Pay Gap, Gender Pay Gap, Gender Swap Number, GEO, GPG, ONS, Pay Fingerprint, Pay Ratio, Recommendations

Pay Gaps #21 – No employer has a gender & ethnicity pay gap! Let’s celebrate!

April 19, 2021 By Nigel

It’s April 2029 and the government is trumpeting the fact that no employer in the UK has a gender pay gap or ethnicity pay gap.  All employers say that their median woman’s hourly pay is the same as the median man’s hourly pay and their median white employee’s hourly pay is the same as their median non-white employee’s hourly pay.  Would you be joining in the celebrations?

[Read more…] about Pay Gaps #21 – No employer has a gender & ethnicity pay gap! Let’s celebrate!

Filed Under: Diversity Tagged With: data quality, Ethnicity Pay Gap, Gender Pay Gap, Median, ONS, Simpsons Paradox

COVID19 Cases #1 – Latest Data and Trends for England

September 27, 2020 By Nigel

Last updated on 27th September 2020 but downloadable spreadsheet in section 3a was updated on 19th October 2020.  I will update the post when I get the time!

The latest data for COVID19 (Coronavirus) cases in England as of Saturday 26th September 2020 shows the number of people testing positive for COVID19 is up 60% from a week ago but this masks extreme regional disparities that make the national trend meaningless.  The North is in the grip of a second wave unlike the South which is not.  Unless recent trends in the North abate, the scenario of 50k positive tests per day by the end of October recently postulated by the Chief Scientific Officer remains feasible.

[Read more…] about COVID19 Cases #1 – Latest Data and Trends for England

Filed Under: Forecasting Tagged With: Coronavirus, Covid19, DHSC, England, NHS, ONS, Pandemic, PHE, Presenting data, SARS-COV-2, trend analysis, Trend extrapolation

Pay Gap Case Study #4 – What is the gender pay gap at Novartis UK?

September 15, 2020 By Nigel

Welcome to my next case study where I look at the 2019 pay gap figures of Novartis UK.  They caught my eye when they posted on LinkedIn the following statement.

“… our 2019 gender pay report which highlights that on average, women earn more than men across all of our UK sites and divisions…“

When I looked at the two legal entities that were required to report gender pay gaps, I saw that both reported pay gaps favouring men instead.  Something odd is going here and it’s a perfect case study to show why anyone who analyses pay gaps needs to pay more attention to a Bletchley Park codebreaker from world war 2 who introduced the world to Simpson’s Paradox.

[Read more…] about Pay Gap Case Study #4 – What is the gender pay gap at Novartis UK?

Filed Under: Diversity Tagged With: Data journalism, detecting unusual data, Gender Pay Gap, ONS, Simpsons Paradox

COVID19 Deaths #2 – Are Public Health England’s Figures Misleading?

July 25, 2020 By Nigel

During the first wave of the COVID19 epidemic, the daily number of deaths published by Public Health England (PHE) has been the main headline in the news.  On 17th July, Matt Hancock, Secretary of State for Health, called for a review of this time series after a blog published by Yoon Loke & Carl Heneghan of Oxford University questioned whether definition used by this time series was appropriate.  I myself had noticed a change in the PHEr time series in my tracker of COVID19 deaths in England but I hadn’t understood why this might have been the case.  After looking at the data again in more detail, I have concluded that this time series is overestimating the number of deaths by 42 +/- 13 per day since the 23rd May and it needs to be revised otherwise it will create confusion should a second wave come.

[Read more…] about COVID19 Deaths #2 – Are Public Health England’s Figures Misleading?

Filed Under: Forecasting Tagged With: Coronavirus, Covid19, CQC, England, NHS, ONS, Pandemic, PHE, Presenting data, SARS-COV-2, trend analysis, Trend extrapolation

COVID19 Deaths #1 – Latest Data and Trends for England

July 25, 2020 By Nigel

Last updated on 25th July 2020 – future updates will be infrequent.

The latest data for deaths due to COVID19 (Coronavirus) in England as of Friday 24th July 2020 show that the first wave of the pandemic is now over when one looks as excess deaths.  People will still be dying of COVID19 for weeks yet but the overall number of excess deaths is now negative.

[Read more…] about COVID19 Deaths #1 – Latest Data and Trends for England

Filed Under: Forecasting Tagged With: Coronavirus, Covid19, CQC, England, NHS, ONS, Pandemic, PHE, Presenting data, SARS-COV-2, trend analysis, Trend extrapolation

COVID19 Deaths #2H – Estimated Excess Deaths in England up to 26th June

June 28, 2020 By Nigel

In many countries across the world, the total effect of the Coronavirus pandemic is now being measured using the concept of Excess Deaths.  However, publication of such data by the Office of National Statistics for England is up to 2 weeks slower than the daily deaths published by Public Health England.  In this post, I update my model which uses the PHE series to estimate what the ONS will publish for excess deaths in England on Tuesday 30th June.

[Read more…] about COVID19 Deaths #2H – Estimated Excess Deaths in England up to 26th June

Filed Under: Forecasting Tagged With: Coronavirus, Covid19, Forecasting model, NHS, ONS, Pandemic, PHE, SARS-COV-2, Trend extrapolation

COVID19 Deaths #2G – Estimated Excess Deaths in England up to 19th June

June 21, 2020 By Nigel

In many countries across the world, the total effect of the Coronavirus pandemic is now being measured using the concept of Excess Deaths.  However, publication of such data by the Office of National Statistics for England is up to 2 weeks slower than the daily deaths published by Public Health England.  In this post, I update my model which uses the PHE series to estimate what the ONS will publish for excess deaths in England on Tuesday 23rd June.

[Read more…] about COVID19 Deaths #2G – Estimated Excess Deaths in England up to 19th June

Filed Under: Forecasting Tagged With: Coronavirus, Covid19, Forecasting model, NHS, ONS, Pandemic, PHE, SARS-COV-2, Trend extrapolation

COVID19 Deaths #2F – Estimated Excess Deaths in England up to 12th June

June 15, 2020 By Nigel

In many countries across the world, the total effect of the Coronavirus pandemic is now being measured using the concept of Excess Deaths.  However, publication of such data by the Office of National Statistics for England is up to 2 weeks slower than the daily deaths published by Public Health England.  In this post, I update my model which uses the PHE series to estimate what the ONS will publish for excess deaths in England on Tuesday 16th June.

[Read more…] about COVID19 Deaths #2F – Estimated Excess Deaths in England up to 12th June

Filed Under: Archive Tagged With: Coronavirus, Covid19, Forecasting model, NHS, ONS, Pandemic, PHE, SARS-COV-2, Trend extrapolation

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