In this month's Talk Evidence, Helen Macdonald and Joe Ross are back with a wry look at the world of Evidence Based Medicine.

They give us a round up of real world data emerging to address various uncertainties about vaccinations against covid

Helen has an update on NHS Digital’s project to extract GP coding for planning of healthcare and research, and talks to Natalie Banner from Understanding Patient Data, to find out what the public really cares about.

Finally, as routine care must go on a clinical review on cardiovascular disease in older adults introduces us to geroscience.

Reading list

Vaccines;

Effectiveness of BNT162b2 and mRNA-1273 covid-19 vaccines against symptomatic SARS-CoV-2 infection and severe covid-19 outcomes in Ontario, Canada: test negative design study - https://doi.org/10.1136/bmj.n1943

Effectiveness of the CoronaVac vaccine in older adults during a gamma variant associated epidemic of covid-19 in Brazil: test negative case-control study - https://doi.org/10.1136/bmj.n2015

Associations of BNT162b2 vaccination with SARS-CoV-2 infection and hospital admission and death with covid-19 in nursing homes and healthcare workers in Catalonia: prospective cohort study

https://doi.org/10.1136/bmj.n1868

Risk of thrombocytopenia and thromboembolism after covid-19 vaccination and SARS-CoV-2 positive testing: self-controlled case series study - https://doi.org/10.1136/bmj.n1931

CVD