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

15 mars 2021 uppdaterad av: 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.

Studieöversikt

Status

Avslutad

Betingelser

Detaljerad beskrivning

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.

Studietyp

Observationell

Inskrivning (Faktisk)

30000

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

    • Michigan
      • Ann Arbor, Michigan, Förenta staterna, 48109
        • University of Michigan

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

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.

Beskrivning

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

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
Intervention / Behandling
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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The change in the incidence of new persistent opioid use before and after July 2016 in Michigan compared to all other states.
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The change in the incidence of new persistent opioid use before and after July 2016 in Michigan compared to Indiana and Wisconsin
Tidsram: 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).
Tidsram: 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

Samarbetspartners och utredare

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Utredare

  • Huvudutredare: Chad Brummett, MD, University of Michigan

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

1 januari 2013

Primärt slutförande (Faktisk)

31 december 2019

Avslutad studie (Faktisk)

31 december 2019

Studieregistreringsdatum

Först inskickad

15 mars 2021

Först inskickad som uppfyllde QC-kriterierna

15 mars 2021

Första postat (Faktisk)

18 mars 2021

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

18 mars 2021

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

15 mars 2021

Senast verifierad

1 oktober 2020

Mer information

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Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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