Maternal substance abuse is a significant public health problem with wide-ranging, negative consequences. Substance use in pregnancy is prevalent, particularly among disadvantaged groups, and is often associated with sporadic, late, or no prenatal care, precluding identification, referral and treatment prior to hospital delivery. Infants born to substance-using mothers are often premature or at low birth weights and admitted to the neonatal intensive care unit (NICU), making this an important setting for initial intervention. Maternal substance use is associated with inadequate childcare and neglect which can have especially devastating consequences for fragile NICU infants. Further, without intervention, many of these mothers will become pregnant again within a short period of time, increasing burden on themselves, their families and society. Prolonged hospitalization in the NICU provides a unique opportunity to intervene with distressed young mothers in crisis, who may have higher levels of motivation to seek help for high-risk behaviors (substance use) and adopt healthy ones (family planning; disease prevention). We predict that a novel, empirically-grounded, hospital-tailored intervention combined with gynecological follow-up in the NICU (i.e., physicians providing reproductive health and HIV/HCV counseling) will increase treatment initiation, reduce substance use, prevent future substance-exposed pregnancies (SEPs), and reduce risk of HIV and HCV. As NICU infants are disproportionately born to disadvantaged, minority families, intervention with this population is critical for reducing economic and racial health disparities. A randomized, controlled group design will be used to allow a rigorous assessment of the feasibility and efficacy of an adaptive, brief, hospital-delivered intervention comprising a novel combination of evidence- based treatments (motivational interviewing [MI] and acceptance and commitment therapy [ACT]) targeting substance abuse treatment initiation and reduced risk of SEPs for mothers with a high-risk, NICU infant. Mothers (N = 64) will be randomized to either: MI-ACT or Conventional Care (CC). MI-ACT treatment intensity (1, 2, or 3 sessions) will vary based upon participant response (i.e., treatment initiation), per the adaptive intervention strategy. An efficacy assessment at 8 weeks post-baseline will assess treatment entry, substance use, and SEP/HIV/HCV risk. MI-ACT treatment mechanisms (i.e., motivation for change; psychological flexibility) will also be investigated. At the 6-month follow-up, broader maternal and infant benefit will be assessed (e.g., child custody; acute care pediatric visits; re-hospitalization). An innovative Bayesian analysis is planned to determine potential benefit of the MI-ACT intervention, which proactively addresses the inevitable problem of power when conducting initial efficacy trials of new interventions in relatively smaller samples. Effective bref, hospital-based interventions targeting substance-using mothers of infants at high medical risk could result in substantial decreases in adverse health and social effects and the large associated costs.

Public Health Relevance

Maternal substance abuse is a significant public health problem with devastating consequences, such as child abuse or neglect, risk of substance-exposed pregnancies with related neurobehavioral abnormalities, and a heightened risk of HIV/HCV (Hepatitis C). Newborns of women abusing substances often require extended hospitalization in the NICU, providing a unique opportunity to intervene with distressed mothers who may have higher levels of motivation to implement health-seeking behaviors. Novel behavioral interventions delivered early postpartum to increase treatment initiation and reduce substance-exposed pregnancies have the potential to reduce health and social risks in medically fragile children as well as mothers in their child-bearing years, potentially saving year of quality life and millions in healthcare dollars.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Planning Grant (R34)
Project #
5R34DA041465-02
Application #
9346672
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Noursi, Samia
Project Start
2016-09-15
Project End
2019-07-31
Budget Start
2017-08-01
Budget End
2018-07-31
Support Year
2
Fiscal Year
2017
Total Cost
Indirect Cost
Name
University of Texas Health Science Center Houston
Department
Family Medicine
Type
Schools of Medicine
DUNS #
800771594
City
Houston
State
TX
Country
United States
Zip Code
77030