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Correction to: New trends in cannabis potency in USA and Europe during the last decade (2008–2017)

  • Suman Chandra
  • Mohamed M. Radwan
  • Chandrani G. Majumdar
  • James C. Church
  • Tom P. Freeman
  • Mahmoud A. ElSohlyEmail author
Correction

Correction to: European Archives of Psychiatry and Clinical Neuroscience (2019) 269:5–15  https://doi.org/10.1007/s00406-019-00983-5

In the original publication, Table 2 contained data that should not have been included in Table 2 and also was not discussed in the body of the manuscript.

The correct Table 2 is given below:

Table 2

Mean and SD of Δ9-THC concentration (%) by type of sample and year

Year

All

Cannabis

Hashish

Hash oil

Sinsemilla

Marijuana

Ditchweed

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Mean

SD

2008

8.9

6.7

11.5

6.1

6.0

3.9

0.4

0.3

22.8

19.3

6.7

9.3

2009

8.3

6.2

10.8

6.1

5.7

4.2

0.4

0.3

21.3

15.3

8.9

9.6

2010

10.0

7.7

12.7

6.1

5.7

4.4

0.5

0.3

22.8

16.5

38.3

30.1

2011

12.3

8.9

13.6

6.2

5.6

3.1

0.5

0.2

30.0

15.1

37.0

26.2

2012

14.1

11.3

14.5

6.4

6.1

3.7

0.7

0.1

31.7

19.1

53.5

25.5

2013

13.4

10.2

13.6

5.9

6.3

3.1

0.5

0.1

29.3

16.4

50.0

26.6

2014

14.6

13.5

13.5

6.4

5.8

3.7

0.2

30.3

23.7

50.8

27.3

2015

13.4

13.2

12.7

6.1

6.8

3.2

0.4

0.3

17.6

20.1

56.3

24.9

2016

13.2

10.8

15.0

5.6

7.3

3.4

0.8

0.1

15.5

14.3

37.9

26.6

2017

17.1

12.9

17.8

5.1

9.4

4.7

0

0

45.9

26.6

55.7

24.7

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.National Center for Natural Products Research, School of PharmacyUniversity of MississippiUniversityUSA
  2. 2.Department of Computer Science (JCC)University of West GeorgiaCarrolltonUSA
  3. 3.Addiction and Mental Health Group (AIM), Department of PsychologyUniversity of BathBathUK
  4. 4.Institute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK
  5. 5.Department Pharmaceutics and Drug Delivery, School of PharmacyUniversity of MississippiUniversityUSA

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