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Otitis Externa

Victoria Palin, Anna Molter, Miguel Belmonte, Darren M Ashcroft, Andrew White, William Welfare, Tjeerd van Staa

Type
Disease or Syndrome
ID
PH900
Version ID
1879
Data Sources
Valid event data range
01/01/2000 - 30/06/2015
Sex
Female, Male
Agreement Date
2019-04-30
Coding system
Read codes v2
Tags /Collections
ClinicalCodes Repository Phenotype Library

Definition

Objectives:

To examine variations across general practices and factors associated with antibiotic prescribing for common infections in UK primary care to identify potential targets for improvement and optimization of prescribing.

Methods:

Oral antibiotic prescribing for common infections was analysed using anonymized UK primary care electronic health records between 2000 and 2015 using the Clinical Practice Research Datalink (CPRD). The rate of prescribing for each condition was observed over time and mean change points were compared with national guideline updates. Any correlation between the rate of prescribing for each infectious condition was estimated within a practice. Predictors of prescribing were estimated using logistic regression in a matched patient cohort (1:1 by age, sex and calendar time).

Results:

Over 8 million patient records were examined in 587 UK general practices. Practices varied considerably in their propensity to prescribe antibiotics and this variance increased over time. Change points in prescribing did not reflect updates to national guidelines. Prescribing levels within practices were not consistent for different infectious conditions. A history of antibiotic use significantly increased the risk of receiving a subsequent antibiotic (by 22%–48% for patients with three or more antibiotic prescriptions in the past 12months), as did higher BMI, history of smoking and flu vaccinations. Other drivers for receiving an antibiotic varied considerably for each condition.

Conclusions:

Large variability in antibiotic prescribing between practices and within practices was observed. Prescribing guidelines alone do not positively influence a change in prescribing, suggesting more targeted interventions are required to optimize antibiotic prescribing in the UK.

Publications

  • Victoria Palin, Anna Molter, Darren M Ashcroft, Andrew White, William Welfare, Tjeerd van Staa, Antibiotic prescribing for common infections in UK general practice variability and drivers. Journal of Antimicrobial Chemotherapy, 74:2440-2450, 2019.

Clinical Code List

Rows: 38
Code Description Entity type Category Coding System (Read)
2D95.00 O/E - tympanic membrane red res70: Otitis externa diagnostic Read
F500.00 Perichondritis of pinna res70: Otitis externa diagnostic Read
F500000 Unspecified perichondritis of pinna res70: Otitis externa diagnostic Read
F500100 Acute perichondritis of pinna res70: Otitis externa diagnostic Read
F500200 Chronic pinna perichondritis res70: Otitis externa diagnostic Read
F500211 Chondrodermatitis nodularis helicis res70: Otitis externa diagnostic Read
F500300 Chondrodermatitis nodularis helicis res70: Otitis externa diagnostic Read
F500z00 Perichondritis of pinna NOS res70: Otitis externa diagnostic Read
F501.00 Infective otitis externa res70: Otitis externa diagnostic Read
F501000 Unspecified infective otitis externa res70: Otitis externa diagnostic Read
F501100 Acute infective otitis externa res70: Otitis externa diagnostic Read
F501111 Abscess, external ear res70: Otitis externa diagnostic Read
F501112 Cellulitis, external ear res70: Otitis externa diagnostic Read
F501200 Acute infection of pinna res70: Otitis externa diagnostic Read
F501300 Acute swimmers' ear res70: Otitis externa diagnostic Read
F501400 Infective otitis externa due to erysipelas res70: Otitis externa diagnostic Read
F501411 Erysipelas - otitis externa res70: Otitis externa diagnostic Read
F501700 Infective otitis externa due to impetigo res70: Otitis externa diagnostic Read
F501711 Impetigo - otitis externa res70: Otitis externa diagnostic Read
F501900 Other acute external ear infections res70: Otitis externa diagnostic Read
F501E00 Other chronic infective otitis externa res70: Otitis externa diagnostic Read
F501F00 Chronic infective otitis externa NOS res70: Otitis externa diagnostic Read
F501G00 Haemorrhagic otitis externa res70: Otitis externa diagnostic Read
F501y00 Other specified infective otitis externa res70: Otitis externa diagnostic Read
F501z00 Infective otitis externa NOS res70: Otitis externa diagnostic Read
F502.00 Other otitis externa res70: Otitis externa diagnostic Read
F502z00 Otitis externa NOS res70: Otitis externa diagnostic Read
F502z11 Inflammation ear external res70: Otitis externa diagnostic Read
F506.00 Abscess of external ear res70: Otitis externa diagnostic Read
F586.00 Otorrhoea res70: Otitis externa diagnostic Read
F586000 Unspecified otorrhoea res70: Otitis externa diagnostic Read
F586011 Discharging ear NOS res70: Otitis externa diagnostic Read
F586200 Otorrhagia res70: Otitis externa diagnostic Read
F586z00 Otorrhoea NOS res70: Otitis externa diagnostic Read
F587.00 Otalgia res70: Otitis externa diagnostic Read
F587.11 Ear pain res70: Otitis externa diagnostic Read
F587000 Unspecified otalgia res70: Otitis externa diagnostic Read
F587z00 Otalgia NOS res70: Otitis externa diagnostic Read

API

To Export Phenotype Details:

Format API
XML site_root/api/v1/public/phenotypes/PH900/version/1879/detail/?format=xml
JSON site_root/api/v1/public/phenotypes/PH900/version/1879/detail/?format=json
R Package

# Download here

library(ConceptLibraryClient)


# Connect to API

client = connect_to_API(public=TRUE)


# Get details of phenotype

details = get_phenotype_detail_by_version('PH900', '1879', api_client=client)

To Export Phenotype Code List:

Format API
XML site_root/api/v1/public/phenotypes/PH900/version/1879/export/codes/?format=xml
JSON site_root/api/v1/public/phenotypes/PH900/version/1879/export/codes/?format=json
CSV site_root/phenotypes/PH900/version/1879/export/codes/
R Package

# Download here

library(ConceptLibraryClient)


# Connect to API

client = connect_to_API(public=TRUE)


# Get codelists of phenotype

codelists = get_phenotype_code_list('PH900', '1879', api_client=client)

Version History

Version
ID
Name Owner Publish date
1879 Otitis Externa ieuan.scanlon 2022-04-04 currently shown

Export - export all codes into a csv file/JSON/XML for the current phenotype version.

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