Prescribing of dipyridamole

Below are the database queries which are used to create this measure. These are run against a copy of the BSA prescribing data which we store in Google BigQuery. We're working on making our BigQuery tables publicly available at which point it will be possible to run and modify these queries yourself. But even where code and database queries are not directly useable by others we believe it is always preferable to make them public.

Description Total items for dipyridamole (as dipyridamole or dipyridamole/aspirin combination), as a proportion of total items of dipyridamole, dipyridamole/aspirin combination and clopidogrel
Why it matters Although the 2010 NICE Technology Appraisal recommends dipyridamole for the prevention of further occlusive events in patients who have had a Transient Ischaemic Attack (TIA), 2016 guidance from the Royal College of Physicians states: the Working Party considers that a unified approach to the treatment of TIA and ischaemic stroke is more appropriate. Whilst clopidogrel does not have a licence for use after TIA, the Working Party considers that the benefits of recommending this drug first-line outweigh any disadvantages. For long-term vascular prevention in people with ischaemic stroke or TIA without paroxysmal or permanent atrial fibrillation: - clopidogrel 75mg daily should be the standard antithrombotic treatment; - aspirin 75 mg daily with modified-release dipyridamole 200 mg twice daily should be used for those who are unable to tolerate clopidogrel; - aspirin 75mg daily should be used if both clopidogrel and modified-release dipyridamole are contraindicated or not tolerated; - modified-release dipyridamole 200 mg twice daily should be used if both clopidogrel and aspirin are contraindicated or not tolerated.
Tags Cardiovascular system, Standard, Efficacy, NICE
Implies cost savings No
History View change history on GitHub →

Numerator SQL

SELECT
     CAST(month AS DATE) AS month,
     practice AS practice_id,
     SUM(items) AS numerator
 FROM hscic.normalised_prescribing
 WHERE bnf_code IN ("0209000L0AAABAB", "0209000L0AAACAC", "0209000L0AAAHAH", "0209000L0AAAKAK", "0209000L0AAALAL", "0209000L0AAAMAM", "0209000L0AAAYAY", "0209000L0BBABAC", "0209000L0BBAFAM", "0209000L0BBAGAM", "0209000L0BGAAAM", "0209000L0BHAAAM", "0209000L0BIAAAM", "0209000V0AAAAAA", "0209000V0BBAAAA", "0209000V0BCAAAA")
 GROUP BY month, practice_id

Denominator SQL

SELECT
     CAST(month AS DATE) AS month,
     practice AS practice_id,
     SUM(items) AS denominator
 FROM hscic.normalised_prescribing
 WHERE bnf_code IN ("0209000C0AAAAAA", "0209000C0AAADAD", "0209000C0AAAEAE", "0209000C0AAAJAJ", "0209000C0AAAKAK", "0209000C0AAALAL", "0209000C0AAASAS", "0209000C0BBAAAA", "0209000C0BBABAE", "0209000C0BDAAAA", "0209000L0AAABAB", "0209000L0AAACAC", "0209000L0AAAHAH", "0209000L0AAAKAK", "0209000L0AAALAL", "0209000L0AAAMAM", "0209000L0AAAYAY", "0209000L0BBABAC", "0209000L0BBAFAM", "0209000L0BBAGAM", "0209000L0BGAAAM", "0209000L0BHAAAM", "0209000L0BIAAAM", "0209000V0AAAAAA", "0209000V0BBAAAA", "0209000V0BCAAAA")
 GROUP BY month, practice_id
Feedback