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Table 1 Trends in marijuana use and purchasing for Washington state from 2014 to 2016

From: Characteristics of the Washington cannabis market from 2014 to 2016

 

2014

2015

2016

Trend test a

Past year (PY) users—any marijuana use

24.9%

26.2%

31.7%

P = 0.002

Daily/nearly daily (DND) marijuana user

10.2%

10.2%

11.3%

P = 0.514

DND user among PY users

41.1%

38.9%

35.7%

P = 0.252

Most common product type usedb

Smoked

80.9%

70.7%

72.9%

P = 0.049

Inhalable

9.5%

14.4%

12.3%

P = 0.387

Edible

8.2%

13.2%

11.9%

P = 0.159

Others

1.4%

1.8%

2.9%

P = 0.192

Any marijuana flower purchase PY

14.9%

16.7%

21.8%

P < 0.001

Any flower purchase among PY usersc

60.3%

64.0%

68.8%

P = 0.052

Any flower purchase among DND users

82.7%

89.6%

87.3%

P = 0.465

Any other marijuana product purchase PY

8.0%

8.9%

13.0%

P = 0.003

Any other product purchase among PY users

32.7%

34.2%

41.0%

P = 0.075

Any other product purchase among DND users

50.4%

54.9%

54.1%

P = 0.672

Ever purchased at retail store among PY usersd

23.4%

41.4%

65.1%

P < 0.001

Ever purchased at retail store among DND users

34.7%

54.7%

85.4%

P < 0.001

  1. aTrend test is performed fitting logistic regressions predicting each dichotomous outcome using year as a continuous predicting variable
  2. bAmong PY users only
  3. cMarijuana purchase questions were only asked if the respondent was a PY user
  4. dIncluding marijuana flower or marijuana products, and only asked if the respondent was a PY user. Only wave 2 data were used for 2014, excluding wave 1 data as the survey was conducted before any store was opened