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. 2019 Feb 11;54(2):407–416. doi: 10.1111/1475-6773.13119

Table 4.

Poisson regression results: opioids, 1999‐2016

All opioids—Panel A (prescription and illicit opioids) All opioids—Panel B (prescription and illicit opioids and other/unspecified narcotics)
GS −0.0413 [0.1552] −0.0335 [0.1554] −0.0307 [0.1427] −0.0413 [0.1425] −0.0689 [0.1485] −0.1273 [0.1373] −0.1289 [0.1393] −0.1102 [0.1268] −0.1196 [0.1235] −0.1407 [0.1300]
PDMP −0.0367 [0.0533] −0.0476 [0.0502] −0.0453 [0.0512] −0.0525 [0.0518] 0.0075 [0.0604] 0.0024 [0.0589] 0.0039 [0.0589] −0.0022 [0.0594]
PMC 0.0346 [0.1808] −0.0030 [0.1651] 0.0003 [0.1560] 0.1242 [0.1656] 0.0965 [0.1503] 0.1000 [0.1438]
MML 0.1628 [0.1354] 0.1469 [0.1255] 0.1598 [0.1246] 0.0745 [0.1171] 0.0628 [0.1091] 0.0730 [0.1071]
NA 0.1295 [0.0935] 0.0943 [0.0805]
N 892 892 892 892 892 901 901 901 901 901
Prescription Opioids—Panel C Illicit Opioids—Panel D
GS −0.0824 [0.1573] −0.0753 [0.1563] −0.0734 [0.1457] −0.0879 [0.1461] −0.1201 [0.1529] 0.0805 [0.1980] 0.0956 [0.2153] 0.1537 [0.1712] 0.1385 [0.1661] 0.1152 [0.1619]
PDMP −0.0337 [0.0496] −0.0463 [0.0470] −0.0413 [0.0475] −0.0474 [0.0473] −0.0644 [0.1376] −0.0860 [0.1323] −0.0695 [0.1349] −0.0888 [0.1358]
PMC 0.0373 [0.1516] −0.0185 [0.1397] −0.0154 [0.1314] 0.2417 [0.3065] 0.1616 [0.2702] 0.1616 [0.2588]
MML 0.2111 [0.1711] 0.1835 [0.1560] 0.1964 [0.1534] 0.1290 [0.1665] 0.0948 [0.1575] 0.1144 [0.1643]
NA 0.1475 [0.0980] 0.1315 [0.0904]
N 884 884 884 884 884 577 577 577 577 577
Covariates No No No Yes Yes No No No Yes Yes
State/Year Fixed Effects Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Tables contain Poisson regression coefficients and clustered standard errors in brackets. Deaths derived from CDC WONDER, 1999‐2016, with underlying causes of death (X40‐44; Y10‐14; X85; X60‐64) and multiple cause of death by category of drug. All opioids—Panel A (T40.0‐T40.4); all opioids—Panel B (T40.1‐T40.4, T40.6); prescription opioids—Panel C (T40.2‐T40.4); illicit opioids—Panel D (T40.0‐T40.1). Counts of deaths have a minimum of 10 per CDC WONDER; counts of less than 10 are suppressed and recorded as missing in the data.

GS, Good Samaritan policy; PDMP, prescription drug monitoring program; PMC, pain management clinic policy; MML, presence of a medical marijuana dispensary.

*P < 0.10, **P < 0.05, ***P < 0.01.