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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 5.

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

Time interval Observed mean low-cost encounters among PSP Expected mean low-cost encounters among PSP Difference p value
Pre (12-month total) 23.74 23.74 – –
During (4-month total) 13.20 15.02 −1.82 0.463
Post (12-month total) 19.59 24.42 −4.83 0.135
a

Low-cost departments included inpatient pharmacy (16%), chemistry laboratory (14%), and phlebotomy (11%), with the remaining departments contributing 5% or less