Ambulance Calls for Substance Use and Alcohol in a Pandemic (ASAP) (ASAP)
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|ClinicalTrials.gov Identifier: NCT04474444|
Recruitment Status : Recruiting
First Posted : July 16, 2020
Last Update Posted : July 16, 2020
|Condition or disease||Intervention/treatment|
|Alcohol Use, Unspecified Substance Use Intoxication Alcohol Emergencies COVID-19 Pandemic Treatment||Other: attendance by ambulance crew|
The Primary objective is to explore ambulance service attendance at incidents involving alcohol and/or substance use over the period of the pandemic lockdown, and the following months. This will be to determine prevalence and explore factors such as patient gender, age, ethnicity or location. Analysis will examine the calls over the course of the year prior to the lockdown, and then compare this to the period of lockdown and following months.
A time series analysis will be conducted to examine the calls over the course of the year prior to the lockdown, and then compare this to the period of lockdown and following months. This will use the 'Interrupted Time Series' (ITS) approach. To explore this regression models will be built that examine the causal models for attendance prior to the pandemic and compared to the lockdown time frame.
A multivariable regression model will be built. Initially a Directed Acyclic Graph (DAG) will allow the identification of confounders and exposures relevant to the model. A logistic regression model will be used to calculate the relative risk of call during lockdown compared to the data prior to lockdown. The model will be fit using p<0.05 as the definition of statistical significance.
Descriptive statistics, trend analysis and predictive analysis will be conducted on the data set to determine trends across time, factors that predict patients requiring ambulance attendance, and factors that predict treatment outcomes. Missing data will be examined for systematic bias, and where found to be missing at random will be excluded from analysis. Where not missing at random, sensitivity analysis will be conducted.
Analysis will examine covariates. Age will be defined as single year continuous variable and examined in categories such as 5-year age groups. Ethnicity will be categorised as groups, such as black, Asian, other minority and mixed ethnic groups will be explored. Census data such as the deprivation, rurality, income, employment, disability and education will look at the decile as defined.
|Study Type :||Observational|
|Estimated Enrollment :||55000 participants|
|Official Title:||Ambulance Calls for Substance Use and Alcohol in a Pandemic (ASAP): Exploring Attendance at Incidents Involving Substance and/or Alcohol Use During COVID-19 Pandemic|
|Actual Study Start Date :||March 23, 2019|
|Estimated Primary Completion Date :||March 23, 2021|
|Estimated Study Completion Date :||March 23, 2021|
Hear and treat
phone call, treatment, not attended
See and treat
Ambulance crew attended
Other: attendance by ambulance crew
hear, attendance, convey
- Attendances for alcohol and drug use [ Time Frame: Full data set 23/03/2019 compared to 22/03/2021 to look at interruption (lockdown) in the time series. ]Counts of attendances for alcohol and drug use by the East Midland's Ambulance Service over the time period. This will be a number per day of people attended.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04474444
|Contact: Graham Law, PhDemail@example.com|
|Contact: Sam Lewisfirstname.lastname@example.org|
|University of Lincoln||Recruiting|
|Lincoln, United Kingdom, LN64PB|
|Contact: Graham Law, PhD 07905008828 email@example.com|
|Principal Investigator:||Graham Law, PhD||University of Lincoln|