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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Am J Obstet Gynecol. 2021 Apr 15;225(4):424.e1–424.e12. doi: 10.1016/j.ajog.2021.04.210

Table 1:

Characteristics of mothers continuing and discontinuing treatment (n=2,314)

Continued treatment for
1 year postpartum
(n=1,484)
Discontinued
treatment during 1
year postpartum
(n = 826)*
P-Value
Demographics
Maternal Age 0.001
  ≤ 25 years old 367 (24.7%) 265 (32.1%)
  26-34 years old 951 (64.1%) 480 (58.1%)
  ≥ 35 years old 166 (11.2%) 81 (9.8%)
Maternal Race/Ethnicity <0.001
  White non-Hispanic 1,368 (92.2%) 717 (86.8%)
  Black non-Hispanic 24 (1.6%) 32 (3.9%)
  Hispanic 73 (4.9%) 57 (6.9%)
  Other 19 (1.3%) 20 (2.4%)
Maternal Education 0.427
  High school or less 810 (54.6%) 465 (56.3%)
  Some college or more 674 (45.4%) 361 (43.7%)
MassHealth Delivery (%Yes) 1,412 (95.2%) 756 (91.5%) 0.001
Marital Status (% Married) 220 (14.8%) 126 (15.3%) 0.782
Rural Residence 166 (11.2%) 99 (12.0%) 0.563
Psychosocial, Opioid Use, and Health Care Utilization (in pregnancy unless noted)
ED Visits (%3 or More) 250 (16.9%) 174 (21.1%) 0.012
Anxiety Diagnosis (%Yes) 305 (20.6%) 205 (24.8%) 0.018
Depression Diagnosis (%Yes) 345 (23.3%) 222 (26.9%) 0.052
Incarceration in pregnancy or postpartum (%Yes) 158 (10.7%) 188 (22.8%) <0.001
Homelessness (claims data) (%Yes) 76 (5.1%) 61 (7.4%) 0.027
Overdose Event (%Yes) 19 (1.3%) 18 (2.2%) 0.099
Type of MOUD 0.142
  Any buprenorphine 891 (60.0%) 470 (56.9%)
  Exclusively methadone 593 (40.0%) 356 (43.1%)
MOUD Treatment Months <0.001
  All pregnancy 770 (51.9%) 220 (26.6%)
  5 to 8 months 511 (34.4%) 345 (41.8%)
  4 or fewer months 203 (13.7%) 261 (31.6%)
Any Opioid Prescription (Excluding Bup) (3MB)(%Yes) 33 (2.2%) 33 (4.0%) 0.014
Obstetric and Birth Characteristics
Breastfeeding at Discharge (%Yes) 698 (47.0%) 359 (43.5%) 0.099
Preterm or Low Birth Weight (%Yes) 290 (19.5%) 198 (24.0%) 0.012
Adequacy of Prenatal Care 0.001
  Less than Adequate 577 (38.9%) 388 (47.0%)
  Adequate 419 (28.2%) 203 (24.6%)
  Intensive 488 (32.9%) 235 (28.5%)
Multiple pregnancy (%Yes) 26 (1.8%) 20 (2.4%) 0.270
Infant NAS Diagnosis (%Yes) 656 (44.2%) 412 (49.9%) 0.009

(3MB = 3 months before delivery; Bup = Buprenorphine; CI = Confidence Interval; ED = Emergency Department; HR = Hazards Ratio; MOUD = Medication for Opioid Use Disorder; NAS = Neonatal Abstinence Syndrome)

*

4 women died during the postpartum year, they are not included in the discontinued group

Individuals receiving both methadone and buprenorphine are classified in “any buprenorphine” group