This is a past event
The seminar will be held on campus in Edward Wright S86 and also via MS Teams on November 8th from 15:00-16:15.
Join Dr Habtamu Beshir, Research Associate in Department of Economics at the University of Bath. His research fields are Development Economics, Health Economics, and Economics of Education.
Abstract: “We have two main objectives in this study: (i) to investigate the effects of Greater London’s Low Emission Zone (LEZ) on respiratory related hospital admissions and mortality; and (ii) to study the impact of the Ultra-Low Emission Zone (ULEZ) on GP level prescriptions for respiratory diseases. First, we use postcode level data from Transport for London (TFL) to identify the areas under LEZ and ULEZ. Then, we compiled three datasets to construct our outcome variables: Hospital Episode Statistics (both Admitted Patient Care (APC) and Accident and Emergency(A&E)); ONS mortality data; and GP level prescribing data from English Prescribing Dataset (EPD). We focus on respiratory related hospital admissions, deaths, and prescriptions. In the APC data we count the number hospital admissions by Local authority district (LAD) and year using ICD-10 codes. Then using LAD population, we calculate respiratory and acute respiratory admission per 10000 people for each LAD and year. In the A&E data, we aggregate admissions to the emergency department due to respiratory illness by LAD and year and calculate A&E respiratory admission rate per 10000 people. To show the effectiveness of ULEZ, we use English Prescribing Dataset (EPD). We identified outcomes such as: Prescribed items, Net Ingredient Cost (NIC), and Actual Cost. We aggregate prescriptions and costs at GP practice level from 2016-Q1 to 2023-Q1. To investigate the effect of Greater London’s LEZ on hospitalization and mortality, we use difference-in-differences (DID) and synthetic difference-in-differences (SDID) estimation strategies. Exploiting the time of introduction of LEZ, we compare exposed areas in Greater London to comparable unexposed urban areas in England before and after the scheme. To study the effect of ULEZ on GP level prescriptions, we also use difference-in-differences and compare GPs in Central London and Inner London to other urban areas in England. We find that exposure to LEZ and ULEZ significantly improved population health. Specifically, using Admitted Patient Care (APC) data, we find LEZ significantly reduced respiratory and acute respiratory hospital admissions. We document a reduction of 12 respiratory related hospital visits per 10,000 after the introduction of LEZ in London. The impact of LEZ on acute respiratory admissions is more pronounced for young children. London has seen a reduction of 11 acute respiratory hospitalization per 10,000 children after the adoption of LEZ. We also show that LEZ has significant reduction effect on respiratory related deaths. Finally, ULEZ significantly reduced GP level respiratory related prescriptions and their costs in Central and Inner London. ULEZ has cut GP level quarterly prescriptions for respiratory infections by 9 prescriptions per 1000 registered patients. This in turn led to a reduction of GP level quarterly respiratory prescription costs by £74 per 1000 registered patients.”
- Speaker
- Dr Habtamu Beshir
- Hosted by
- University of Aberdeen Business School
- Venue
- Edward Wright Building
- Contact
-
No booking required.