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A Difference-In-Differences Analysis of New Persistent Opioid Use After Surgery

15 de março de 2021 atualizado por: Chad Brummett, University of Michigan

Using Difference-in-Differences to Evaluate the Effect of a Statewide Quality Improvement Program on New Persistent Opioid Use After Surgery

The Michigan Opioid Prescribing and Engagement Network (M-OPEN) was established in 2016 with the goal of reducing excessive opioid prescribing after surgery using evidence-based prescribing guidelines. Beginning in July 2016, M-OPEN began a statewide quality improvement campaign to educate providers and share prescribing best practices. This retrospective study examines the effect of these efforts on new persistent opioid use after surgery compared to other states where no such program existed using a difference-in-differences approach.

Visão geral do estudo

Status

Concluído

Condições

Descrição detalhada

In the United States, surgical care has become a gateway for chronic opioid dependence and its associated morbidity. Between 5-10% of patients who receive opioids for postoperative pain control go on to develop long-term opioid use. This translates to more than 2 million previously opioid-naïve individuals developing chronic opioid use after surgery each year. Persistent opioid use after surgery is associated with increased readmissions, healthcare utilization, and healthcare expenditures. Critically, long-term opioid use increases the risk of overdose and death in patients who, prior to their surgery, had no exposure to opioids.

Growing recognition of this problem has led to numerous efforts aimed at reducing opioid-associated morbidity after surgery. These include legislative limits on opioid prescribing for acute pain, procedure-specific prescribing guidelines based on patient-reported opioid use, and opioid-sparing pain management pathways. In Michigan specifically, the Michigan Opioid Prescribing and Engagement Network (M-OPEN) led a statewide quality improvement effort beginning in 2016 that focused on provider education using evidence-based opioid prescribing guidelines. Previously, these guidelines have been shown to significantly reduce excessive postoperative opioid prescribing across the state, however it is currently unknown whether these efforts have had any effect on the actual incidence of persistent opioid use after surgery.

Therefore, the current study will evaluate the incidence of new persistent opioid use before and after the establishment of M-OPEN in Michigan. Beginning in 2016, a statewide quality improvement initiative was undertaken in Michigan to improve postoperative opioid prescribing. In order to accomplish this goal, this study will use a difference-in-differences approach to compare new persistent opioid use in Michigan before and after 2016 to other states where no such quality improvement effort existed.

Tipo de estudo

Observacional

Inscrição (Real)

30000

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

    • Michigan
      • Ann Arbor, Michigan, Estados Unidos, 48109
        • University of Michigan

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Sim

Gêneros Elegíveis para o Estudo

Tudo

Método de amostragem

Amostra Não Probabilística

População do estudo

Data for this study will be obtained from the Truven Health MarketScan database, which is a national data set of employer-based insurance claims. Patients in the database who underwent one of the eligible procedures will be identified using Current Procedural Terminology codes that correspond to the specific operations under analysis.

Descrição

Inclusion Criteria:

  • Adult patients (18 years and older)
  • Patients undergoing one of the following procedures: laparoscopic cholecystectomy, laparoscopic appendectomy, minor hernia repair (including laparoscopic or open inguinal, femoral, umbilical, and epigastric hernia repair), open and laparoscopic ventral/incisional hernia repair, laparoscopic colectomy, open colectomy, vaginal hysterectomy, laparoscopic hysterectomy, and open abdominal hysterectomy
  • Patients who underwent surgery between January 1, 2013 and December 31, 2019

Exclusion Criteria:

  • Patients who are not opioid-naive at the time of surgery, defined as filling 1 or more opioid prescriptions between the 12 months to 31 days prior to surgery
  • Patients without continuous insurance enrollment for at least 12 months before and at least 6 months after the date of surgery
  • Patients still in the hospital on postoperative day 30
  • Patients not discharged home after surgery
  • Patients who underwent another surgery within 6 months of their index operation

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

Coortes e Intervenções

Grupo / Coorte
Intervenção / Tratamento
Patients undergoing surgery
Retrospective cohort of patients who underwent surgery between 1/1/13 to 12/31/19 and were sampled from the Truven Health MarketScan Database.
Retrospective analysis of opioid use after one of the following surgical procedure categories: laparoscopic cholecystectomy, laparoscopic appendectomy, minor hernia repair (including laparoscopic or open inguinal, femoral, umbilical, and epigastric hernia repair), open and laparoscopic ventral/incisional hernia repair, laparoscopic colectomy, open colectomy, vaginal hysterectomy, laparoscopic hysterectomy, and open abdominal hysterectomy.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
The change in the incidence of new persistent opioid use before and after July 2016 in Michigan compared to all other states.
Prazo: Postoperative days 4 to 180
Among patients who undergo surgery, new persistent opioid use is defined as filling an opioid prescription in post-discharge days 4-90 and filling another opioid prescription in post-discharge days 91-180. This incidence will be measured from 1/1/13-6/30/16 (before M-OPEN established) and from 7/1/16-12/31/19 (after M-OPEN established) and the change before and after this date will be compared between Michigan and all other states (the difference-in-differences). Outcomes will be measured at 1 year, 2 years, and 3 years post-intervention.
Postoperative days 4 to 180

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
The change in the incidence of new persistent opioid use before and after July 2016 in Michigan compared to Indiana and Wisconsin
Prazo: Postoperative days 4 to 180
Among patients who undergo surgery, new persistent opioid use is defined as filling an opioid prescription in post-discharge days 4-90 and filling another opioid prescription in post-discharge days 91-180. This incidence will be measured from 1/1/13-6/30/16 (before M-OPEN established) and from 7/1/16-12/31/19 (after M-OPEN established) and the change before and after this date will be compared between Michigan and Indiana/Wisconsin (the difference-in-differences). Outcomes will be measured at 1 year, 2 years, and 3 years post-intervention.
Postoperative days 4 to 180
The change in the incidence of new persistent opioid use before and after July 2016 in Michigan compared to 11 other Midwest states (Illinois, Indiana, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin).
Prazo: Postoperative days 4 to 180
Among patients who undergo surgery, new persistent opioid use is defined as filling an opioid prescription in post-discharge days 4-90 and filling another opioid prescription in post-discharge days 91-180. This incidence will be measured from 1/1/13-6/30/16 (before M-OPEN established) and from 7/1/16-12/31/19 (after M-OPEN established) and the change before and after this date will be compared between Michigan and 11 other Midwest states. Outcomes will be measured at 1 year, 2 years, and 3 years post-intervention.
Postoperative days 4 to 180

Colaboradores e Investigadores

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Patrocinador

Investigadores

  • Investigador principal: Chad Brummett, MD, University of Michigan

Publicações e links úteis

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Publicações Gerais

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

1 de janeiro de 2013

Conclusão Primária (Real)

31 de dezembro de 2019

Conclusão do estudo (Real)

31 de dezembro de 2019

Datas de inscrição no estudo

Enviado pela primeira vez

15 de março de 2021

Enviado pela primeira vez que atendeu aos critérios de CQ

15 de março de 2021

Primeira postagem (Real)

18 de março de 2021

Atualizações de registro de estudo

Última Atualização Postada (Real)

18 de março de 2021

Última atualização enviada que atendeu aos critérios de controle de qualidade

15 de março de 2021

Última verificação

1 de outubro de 2020

Mais Informações

Termos relacionados a este estudo

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

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