Table 4.

Impact of Texas’s pill mill law on prescribers stratified by baseline opioid prescribing levels.

	Quartiles of baseline opioid prescribing				Highest baseline opioid prescribing (percentile)
	0–25th	26–50th	51–75th	76–100th	90th	95th	97th	99th
Morphine equivalent dose, mean (mg)
Impact on level	−0.42	−0.96***	−0.48	−0.007**	0.17	0.47	−0.37	−0.02***
Impact on trend	−0.01	−0.52	−0.47	−0.56	−0.88**	−0.88**	−0.58	−0.33
Opioid volume (kg)
Impact on level	−0.01	−0.06	−0.22	−4.14***	0.14	−0.20***	−0.82***	−1.50***
Impact on trend	−0.002	−0.005	−0.05	−9.92	−0.99***	−1.00	−2.12	−4.99
Number of opioid prescriptions (thousands)
Impact on level	−0.15	−0.34	−0.95***	−3.00***	−0.69***	0.03	0.34	−0.32***
Impact on trend	0.02	0.01	−0.45	−11.8	−1.97	−1.44***	−2.44***	−3.50
Quantity of opioid pills dispensed (thousands)
Impact on level	−2.26	−7.64	−17.8	38.6	−4.31***	21.0	66.6	−5.54
Impact on trend	0.36	1.14	−5.87	−707***	−82.4	−82.8***	−170***	−297***

^**p < 0.05.

^***p < 0.01.