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Area of Science:

  • Public Health
  • Substance Use Disorder Prevention
  • Primary Care Interventions

Background:

  • Evidence-based early intervention practices, including screening, brief intervention, and referral to treatment (SBIRT), are crucial for identifying unhealthy substance use and preventing substance use disorder.
  • A significant gap exists in recommended screening frequencies for these interventions.
  • The Pennsylvania (PA) SBIRT initiative aimed to implement SBIRT in primary care settings over five years.

Purpose of the Study:

  • To evaluate the impact of screening policies within the PA SBIRT initiative on changes in patients' substance use risk categories over time.
  • To assess the effectiveness of SBIRT implementation in primary care for identifying shifts in substance use risk.

Main Methods:

  • Quantitative data were collected from 1,364 patients across seven primary care sites who underwent two screenings using validated instruments (e.g., AUDIT, DAST).
  • Patients' demographic characteristics included 49% male, 51% female, 81% White, and 14% Black.
  • A generalized estimating equation model was employed to determine the statistical significance of risk category changes between the two screening points.

Main Results:

  • The average interval between screenings for patients with a risk category change was 9.01 months.
  • A statistically significant change in risk category was observed between the first and second screenings (P > 0.001).
  • Notably, 56% of patients showed an increase in their substance use risk category, with 91% of these moving from low to higher risk.

Conclusions:

  • Frequent screening policies appear to enhance the identification of changes in substance use risk categories.
  • These findings underscore the need for further research into optimal screening intervals to improve early detection and patient linkage to care for unhealthy substance use.
  • The study supports the role of SBIRT in primary care for proactive substance use management.