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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 4.

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

Time interval Observed mean medium-cost encounters among PSP Expected mean medium-cost encounters among PSP Difference p value
Pre (12-month total) 18.60 18.60 – –
During (4-month total) 9.24 9.65 −0.42 0.719
Post (12-month total) 17.18 20.19 −3.01 0.132
a

Medium-cost departments included outpatient OB-GYN (15%) and microbiology (12%), with the remaining departments contributing 5% or less