An observational study in Asthma, sponsored by University of Edinburgh. Completed at 1 site in United Kingdom. Open to female participants aged 16 Years to 45 Years. Per ClinicalTrials.gov, last updated 2021-06-21.
Sponsored by University of Edinburgh · Observational
Studies examining the sex differences in the epidemiology and morbidity patterns of asthma show that the rates of disease severity, healthcare utilisation, and poor quality of life are considerably higher in women than in men, and this has been attributed to endogenous and exogenous sex hormonal factors. Studies examining the impact of use of hormonal contraceptives on the risk of asthma and asthma-related conditions are few, yet findings are conflicting.
In the present study, the investigators utilize data from the Scottish Health Survey, a national representative sample, to investigate the associations between current use of hormonal contraceptives and the prevalence of self-reported doctor-diagnosed current asthma and wheezing symptoms in Scottish women. The investigators hypothesize that while current use of any hormonal contraceptives and combined oral pills are associated with higher prevalence of asthma and asthma outcomes, current use of progesterone-only contraceptives is not associated with asthma. A secondary aim of the current study is to examine whether there is evidence of any biological interaction between use of hormonal contraceptives and BMI in relation to the risk of asthma and asthma outcomes.
3,921 studies on the registry are indexed under Asthma; 507 are open to participants now.
This study's enrollment of 3,257 is above the median of 150 across 970 observational studies indexed under Asthma.
Browse Asthma studies →University of Edinburgh is the lead sponsor of 393 studies on the registry; 64 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Non-pregnant women aged 16-45 years
Exclusion Criteria:
Self-reported doctor-diagnosed current asthma
Time frame: During the past 12 months
Self-reported wheezing symptom
Time frame: During the past 12 months
Self-reported current treatment for asthma/wheeze
Time frame: During the past 12 months
This study is completed, as verified in Jun 2021. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
University of Edinburgh