- a nir & practice data comparison - immunisation advisory centre · 2019. 10. 15. · impact...
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Why messages don’t make it- a NIR & practice data comparison
Presented by Georgina TuckerImmunisation Programme Manager – Auckland DHB & Waitematā DHB
On behalf of: Auckland DHB & Waitematā DHB: Georgina Tucker, Natalie Desmond, Samuel Wojcik& PHO Immunisation Coordinators: Sian Gilhooley (Comprehensive Care PHO), Louise
Goodall (Auckland PHO), Beth Harvey (ProCare Networks), Kate Moodabe (Total Healthcare PHO), Denise Naera (National Hauora Coalition), Catherine Roscoe (ProCare Networks), Kristin Shepherd-Bell (ProCare Networks), Tiffany Soloai
(National Hauora Coalition) and Anju Verma (Alliance Health Plus)
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The National Immunisation Register
• Created in 2004 alongside the Meningococcal vaccination programme
• Has captured immunisations for all children born after 2005• School based immunisations• Tdap in Pregnancy since 2014• Influenza in primary care since 2014 & pharmacies since 2016• Essential tool for supporting an effective immunisation
programme• Legacy system affected by messaging errors
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Impact of NIR data inaccuracy
• Increased workload for NIR admin & practice staff Resending immunisation event records and following up on
overdue reports Following up on children that are already immunised Time that could be better spent on following up unimmunised
children• Lack of confidence in the accuracy of the NIR• Lack of confidence of the public in the health system• Inaccurate immunisation coverage reports
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Small data accuracy audit - 2018
• Growing data quality issues in mid-2018
• PHO Immunisation Coordinators and the NIR team in Auckland and Waitematā DHBs collaborated on a small quality audit
• 35 practices in Auckland DHB & Waitematā DHB identified Known messaging issues And/or high automatic referral to the Outreach Immunisation Service
(OIS)
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Small data accuracy audit - 2018
Escalated to the Ministry of Health and to MedTech MedTech with the support of ADHB/WDHB Imms Coordinators identified
an issue with the message utility function Dated back to July 2017 schedule changes MedTech released a software update in mid-August 2018, including
resending of historical messages
35 clinics 30,000 immunisation events
• 9,000 had not messaged = 30%
• Many were adults• >165 were children <2
years old
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Systematic data audit
• Endorsement of all PHO leads• Parameters agreed by Immunisation Coordinators
Immunisation events 1 July 2017 to 30 January 2019 Initially for MedTech 32 and MedTech Evolution, other PMS requested
later All immunisations (not limited to children) Capture data such as Next of Kin fields
• Provided to DHB data analyst
• Vaccine lists from NIR for each practice
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Systematic data audit - methodology
• Unique identifiers for each immunisation event to match the two data sets NHI + Date of immunisation + batch number NHI + Date of immunisation + vaccine expiry (month and year)
• Immunisation events filtered for further analysis: Childhood immunisations (including influenza) – given or decline Antenatal immunisations – given >65 influenza – given
• Iterative process• Time consuming
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Reason for mismatch – imms given
• Opt off • Not opted on• Patient not on NIR• Date variation• Task variation• Varicella variation
• Batch number different• 3rd rotavirus vaccine• Alternative NHI (Master
vs Secondary)• Other• Unknown
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Reason for mismatch – imms declined
• Opt off • Not opted on• Patient not on NIR• External provider• Immunisation given subsequently
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Antenatal immunisation matching
• Filtered if task contained “Pregnancy” • OR one of the multiple variations of Boostrix if not obviously a maleWomen aged 15 to 45
• = time consuming! Limited to “Pregnancy Influenza” or “Dtap pregnancy”
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Data provided
161 clinics 864,126 immunisation
events
• 522, 881 events were given or declined
• 459,546 events analysed
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Childhood Immunisations
161 clinics
218,816
95742537
332 50914915
n=241,265
Schedule matched
Schedule mismatched
Influenza matched
Influenza mismatched
Declines matched
Declines mismatched
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Childhood Immunisations - scheduled
113 clinics
Total number of immunisationevents Number of mismatches Update required on NIR
Number 151,839 6,274 3,567
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000N
umbe
r of e
vent
s
Mismatch deep-dive
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Reason for childhood imms mismatch55 clinic deep dive
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Childhood Immunisations - scheduled
10,414
6,338
4,075
3,578
407
1,828
1,280
548
646
38
0 2,000 4,000 6,000 8,000 10,000 12,000
Mismatches
Given
Declined
NIR update required
Report impactDeep-dive analysis (clinics=113)
Q4 2018/19
Deep-dive total
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Childhood Immunisations – declined -mismatch
50%
32%
3%2%
1%
12%
Opt off
External provider
Not opted on
Not on NIR
Imms given
Unknown
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Antenatal immunisation mismatch
3994 1229
Clinics = 84
Matches
Opt off
Not opted on
Other
15.7%
23.2%
62.1%
Total number events analysed = 5223
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Antenatal immunisation mismatch
1 possible factor identified from Immunisation Coordinator support of practices resubmitting their records……- Many of the non-messaged pregnancy immunisations for
MedTech PMS users were for a 2nd or subsequent pregnancy –MedTech have been made aware
- Some entered as non-schedule immunisations
- We may be under reporting antenatal immunisation coverage!
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>65 year old influenza
52,833 10,437
Clinics = 124
Matches
Not opted on
Opt off
Other
18.8%
58.4%
22.8%
Total number events analysed = 63270
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Other factors
• Mandatory patient detail fields (NOK, Address)not all clinics provided these fields for analysis If provided these fields, most data sets contained values
for these fields – but may have been collected retrospectively?
• Nurse as providerClinic data included a provider code rather than provider's
name so it was unclear at the time of analysis if the provider recorded was a nurse or doctor
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Recommendations – PMS systems
• Opt off system for all funded vaccines- Opt on prompt for all patients, not just children <6 years of age
• No “fix later” option for mandatory NIR fields• More known immunisation tasks for non-standard
schedule imms = less free format textEasier overseas immunisation record loadingNo “fix later” option for mandatory NIR fields
• Batch number accuracy mechanism
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Recommendations – Wider systems
• Mechanism for PMS vendor and immunisation Coordinator meetings so can collaborate better
• Working group for future schedule changes• Have a process for regular clinic-NIR data matches • Authorised vaccinators as providers on the NIR,
rather than needing a doctor• Manufacturers – not use 0 or O in batch numbers• Harder to create NHI numbers
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Any questions?
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Thank you!
Especially to• Sam Wojcik – our star data analyst
• Immunisation Coordinators for collecting the data & supporting practices with resending data
• Practices for all their immunisations
• NIR team for following up overdue children and messaging errors