TABLE 2.

Difference in quarterly rates of potentially problematic patterns of opioid analgesic prescriptions, per 100 000 adult New York City residents, 2011–2015

Outcome	Starting Value (95% CI)	End of Anticipatory Period (Observed Versus Expected)		End of Postmandate Period (Observed Versus Expected)
		Relative Difference (95% CI)	Absolute Difference (95% CI)	Relative Difference (95% CI)	Absolute Difference (95% CI)
≥5 prescribers	26.7 (25.1 to 28.3)	−9 (−37 to 23)	−2.7 (−11.1 to 5.7)	−58 (−97 to −13)	−17.2 (−31.2 to −3.1)
≥5 prescribers and ≥5 pharmacies	7.3 (7.0 to 7.6)	−22 (−37 to −6)	−1.9 (−3.3 to −0.5)	−88 (−100 to −68)	−8.6 (−11.0 to −6.3)
Cash and insurance payment	221.9 (206.2 to 237.5)	−2 (−33 to 32)	−7.5 (−88.4 to 75.5)	−50 (−89 to −5)	−145.4 (−279.4 to −11.6)

Bold denotes P ≤ 0.05.