Appendix D - Cannabis Report

Appendix D

The Extent and Patterns of Cannabis Use
Among Adult Canadians, 1970-1978

Table D-1. Adult Canadians B Incidence of Cannabis Use

Table D-2. Adult Canadians B Current Cannabis Use Patterns, (Gallup, 1978)

Table D-3. Adult Canadians B Frequency of Cannabis Use

Table D-4. Adult Canadians B Cannabis Use by Region (Gallup, 1978)

Table D-1

Adult Canadians B Incidence of Use

(Percent & Estimated Number in Population)

Ever Used:	Marijuana	Hashish	Cannabis
Canada, 1970 (Le Dain)	3.3% 422,000	2.5% 320,000	3.6% 451,000
Canada, 1978 (Gallup)¹	16.4% 2,624,000	11.2% 1,792,000	17.2% 2,752,000

Annual Use (past 12 months):	Marijuana	Hashish	Cannabis
Canada, 1970 (Le Dain)	* *	* *	1.9% 238,000
Ontario, 1976 (ARF)	* *	* *	5.8% 337,850²
Ontario, 1977 (ARF)	* *	* *	8.6% 500,950²
Canada, 1978 (Gallup)¹	9.4% 1,504,000	6.1% 976,000	9.75% 1,560,000

^{1 Conducted in January, 1978.
Population estimates based on estimate of 16 million Canadians aged 18 and over in 1977.

² Estimated number in Ontario only, based on estimate of 5,825,000 Ontarians
aged 18 and over in 1977.

** Data not available.

Table D-2

Adult Canadians B Current Cannabis Use Patterns
(Gallup, 1978)¹

(Percent & Estimated Number in Population)

Pattern of
Use
Marijuana
Hashish
Cannabis

Use within 12
months of interview
9.4%        1,504,000
6.1%
          976,000
9.75%
1,560,000

Use within 30 days
of interview
8.0%        1,280,000
5.1%
          816,000
8.3%
1,328,000

Used within week
prior to interview
3.2%           512,000
1.1%
          176,000
3.6%
         576,000

Used daily in past

30 days
1.4%           224,000
0.3%
            48,000
1.4%
         224,000

^{1 See note 1 on Table D-1.

Table D-3

Adult Canadians B Frequency of
Cannabis Use

(Percent & Estimated Number in Population)

Frequency of Use
1970 (Le
Dain)

"Past 12 months"
1976
(Ontario)²

"Past 12 months"
1977
(Ontario)²

"Past 12 months"
1978
(Gallup)¹

"Past 30 days"

Once weekly or less
1.8%
        225,000
4.6%
      273,650
7.4%
       430,800
4.7%
         752,000

More than once
weekly
0.1%
          12,500
1.1%
         64,200
1.2%
         70,150
3.6%
         576,000

Total
1.9%
        238,000
5.8%
       337,850
8.6%
       500,950
8.3%
      1,328,000

^{1 & 2 See notes
2 and 3 on Table D-1.

Table D-4

Adult Canadians B
Cannabis Use by Region (Gallup, 1978)¹}

Region
Ever used

% of        Est. no. in

Sample       Region
Use within past

12 months

% of        Est. no. in

Sample       Region
Use within past

30 days

% of        Est. no. in

Sample       Region
Use in past

week

% of        Est. no. in

Sample       Region

Atlantic
   10.8
           173,000
       7.6
           122,000
     6.7
            107,000
      3.8
             61,000

Quebec
   12.5
           550,000
       6.5
           281,000
     5.5
            238,000
      1.0
             43,000

Ontario
   22.4
        1,326,000
     11.5
           681,000
     9.7
            574,000
      4.0
           237,000

Prairies
   12.5
           300,000
      8.4
            202,000
     5.8
            139,000
      2.6
             62,000

B.C.
   22.6
           400,000
    15.2
            270,000
   15.2
            270,000
      9.8
           173,000

Canada
   17.2
        2,752,000
    9.75
         1,560,000
     8.3
          1,328,000
      3.6
           576,000

^{1 See note 1 on Table D-1.}

Appendix E

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Pattern of Use	Marijuana	Hashish	Cannabis
Use within 12 months of interview	9.4% 1,504,000	6.1% 976,000	9.75% 1,560,000
Use within 30 days of interview	8.0% 1,280,000	5.1% 816,000	8.3% 1,328,000
Used within week prior to interview	3.2% 512,000	1.1% 176,000	3.6% 576,000
Used daily in past 30 days	1.4% 224,000	0.3% 48,000	1.4% 224,000

Frequency of Use	1970 (Le Dain) "Past 12 months"	1976 (Ontario)² "Past 12 months"	1977 (Ontario)² "Past 12 months"	1978 (Gallup)¹ "Past 30 days"
Once weekly or less	1.8% 225,000	4.6% 273,650	7.4% 430,800	4.7% 752,000
More than once weekly	0.1% 12,500	1.1% 64,200	1.2% 70,150	3.6% 576,000
Total	1.9% 238,000	5.8% 337,850	8.6% 500,950	8.3% 1,328,000

Region	Ever used % of Est. no. in Sample Region	Use within past 12 months % of Est. no. in Sample Region	Use within past 30 days % of Est. no. in Sample Region	Use in past week % of Est. no. in Sample Region
Atlantic	10.8 173,000	7.6 122,000	6.7 107,000	3.8 61,000
Quebec	12.5 550,000	6.5 281,000	5.5 238,000	1.0 43,000
Ontario	22.4 1,326,000	11.5 681,000	9.7 574,000	4.0 237,000
Prairies	12.5 300,000	8.4 202,000	5.8 139,000	2.6 62,000
B.C.	22.6 400,000	15.2 270,000	15.2 270,000	9.8 173,000
Canada	17.2 2,752,000	9.75 1,560,000	8.3 1,328,000	3.6 576,000