Lyons RA

No ORCID on file · 7 papers in corpus · active 2002-2023

Study types

  • article 2
  • review 1

Condition tags

  • endometriosis 2
2023
Impact of data source choice on multimorbidity measurement: a comparison study of 2.3 million individuals in the Welsh National Health Service.
BMC medicine ·doi:10.1186/s12916-023-02970-z

BackgroundMeasurement of multimorbidity in research is variable, including the choice of the data source used to ascertain conditions. We compared the estimated prevalence of multimorbidity and associations with mortality using different da…

2023
The impact of varying the number and selection of conditions on estimated multimorbidity prevalence: A cross-sectional study using a large, primary care population dataset.
PLoS medicine ·doi:10.1371/journal.pmed.1004208

BackgroundMultimorbidity prevalence rates vary considerably depending on the conditions considered in the morbidity count, but there is no standardised approach to the number or selection of conditions to include.Methods and findingsWe cond…

2022
Measuring multimorbidity in research: Delphi consensus study.
BMJ medicine ·doi:10.1136/bmjmed-2022-000247

ObjectiveTo develop international consensus on the definition and measurement of multimorbidity in research.DesignDelphi consensus study.SettingInternational consensus; data collected in three online rounds from participants between 30 Nove…

2015
Global, regional, and national disability-adjusted life years (DALYs) for 306 diseases and injuries and healthy life expectancy (HALE) for 188 countries, 1990-2013: quantifying the epidemiological transition.
Lancet (London, England) ·doi:10.1016/s0140-6736(15)61340-x

BackgroundThe Global Burden of Disease Study 2013 (GBD 2013) aims to bring together all available epidemiological data using a coherent measurement framework, standardised estimation methods, and transparent data sources to enable compariso…

article 2007
The effect of interleukin-6 on ciliary beat frequency in the human fallopian tube
Fertility and sterility ·doi:10.1016/j.fertnstert.2007.07.1379

ObjectiveTo investigate the effect of interleukin-6 (IL-6) on ciliary activity within the human fallopian tube in vitro.DesignAn experimental laboratory-based study.SettingUniversity teaching hospital.Patient(s)Fallopian tube specimens were…

review 2006
The reproductive significance of human Fallopian tube cilia
Human reproduction update ·doi:10.1093/humupd/dml012

Effective tubal transport of ova, sperm and embryos is a prerequisite for successful spontaneous pregnancy. Although there is much yet to be discovered about the mechanisms involved, it is evident that tubal transit is a far more complicate…

article 2002
Peritoneal fluid, endometriosis, and ciliary beat frequency in the human fallopian tube
Lancet (London, England) ·doi:10.1016/s0140-6736(02)11247-5

Endometriosis and infertility are known to be associated, but it is unclear whether endometriosis causes infertility. We used contrast analogue enhancement to study the effect of peritoneal fluid from women with early stage endometriosis on…