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. Author manuscript; available in PMC: 2022 Jul 22.
Published in final edited form as: Arch Womens Ment Health. 2020 Jun 16;24(1):85–92. doi: 10.1007/s00737-020-01045-9

Table 3.

Difference-in-difference estimate of PSP impact on high-cost encountersa

Time interval Observed mean high-cost encounters among PSP Expected mean high-cost encounters among PSP Difference p value
Pre (12-month total) 4.53 4.53 – –
During (4-month total) 3.39 4.05 −0.66 0.524
Post (12-month total) 3.64 7.95 −4.31 <0.001
a

High-cost departments included visits to the emergency department (21%) and inpatient encounters related to labor and delivery (12%), with the remaining departments contributing 5% or less