Could prenatal food insecurity influence neonatal abstinence syndrome severity?

Abstract

In general populations, prenatal food insecurity negatively affects maternal and infant health. Our aim was to estimate and test the association between prenatal food insecurity and neonatal abstinence syndrome (NAS) severity. Single-site prospective cohort design. Women receiving opioid agonist treatment with methadone or buprenorphine were interviewed (including demographics and food insecurity) during the third trimester at the combined obstetric/opioid use disorder treatment clinic at Boston Medical Center (BMC) in Boston, MA, USA, a large urban safety-net hospital. During postnatal hospitalization, infants were assessed and treated per hospital NAS protocol. Maternal clinic and infant hospitalization data were abstracted from medical records. Women (n=75; aged ≥18years; fluent English; singleton pregnancy; intending to deliver at BMC and maintain parental custody) receiving care in the specialized clinic were study eligible (2013-15). Women who delivered infants <36weeks gestational age or required prolonged newborn intensive care unit stay were excluded from analyses. Predictors: validated two-question Hunger Vital Sign™ food insecurity screener; outcomes: extent of NAS pharmacological treatment and length of hospital stay (LOS) for NAS. Of the mother-infant dyads, 61 (81%) infants were treated pharmacologically for NAS. Mean hospital LOS was 19.9 (standard deviation=9.4) days. Maternal food insecurity (n=43, 57.3%) was associated with infant NAS pharmacological treatment in logistic regression analyses individually adjusted for prenatal: maternal depression [adjusted odds ratios (aOR)=3.69 (95% confidence intervals (CI)=1.02-13.43, P=0.05)] and methadone agonist treatment [aOR=4.17 (95% CI=1.05-16.50, P=0.04)]. Associations of food insecurity and LOS were inconclusive regardless of covariate control (P>0.05). Among women receiving opioid agonist treatment, prenatal food insecurity appears to be associated with increased risk for neonatal abstinence syndrome pharmacological treatment.