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. Author manuscript; available in PMC: 2021 May 1.
Published in final edited form as: J Health Econ. 2020 Mar 4;71:102286. doi: 10.1016/j.jhealeco.2019.102286

Table A.2:

Did Part D Increase Opioid Prescriptions Among the 65+ Population?

Panel A: Opioid Prescriptions
(Age ≥ 65) x (Year ≥ 2006) (1) (2) (3) (4)
0.174**
(0.089)		 0.191**
(0.096)		 0.181*
(0.094)		 0.177*
(0.099)
Age Fixed Effects Yes Yes Yes Yes
Year Fixed Effects Yes Yes Yes Yes
Years (2002–2009) All All No 2004–2005 No 2004–2005
Ages (59–71) All No 63–64 All No 63–64
N 23,190 19,205 17,754 14,694
Panel B: ln(Price)
(Age ≥ 65) x (Year ≥ 2006) (1) (2) (3) (4)
−0.476***
(0.121)		 −0.459***
(0.114)		 −0.491***
(0.142)		 −0.488***
(0.142)
NDC x Year Fixed Effects Yes Yes Yes Yes
NDC x Age Fixed Effects Yes Yes Yes Yes
Years (2002–2009) All All No 2004–2005 No 2004–2005
Ages (59–71) All No 63–64 All No 63–64
N 11,995 9,978 9,230 7,697

Notes:

***

Significance 1%,

**

Significance 5%,

*

Significance 10%.

In Panel A, each observation is an individual-year and standard errors in parentheses are adjusted for clustering at individual level. In Panel B, each observation is a prescription and standard errors are adjusted for two-way clustering at individual- and NDC-level. Age 65 excluded in all regressions.