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Table 4 Description of cannabis products used for self-treatment and mode of administration, stratified according to the type of cannabis use among individuals who reported self-medication with cannabis in an online survey in Quebec from November 2020 to January 2021 (n = 489)

From: A description of self-medication with cannabis among adults with legal access to cannabis in Quebec, Canada

 

Gender (16 participants with “other gender” not stratified)

Age (years)

Type of cannabis use

Total

Men

Women

p-value$

≤ 34

>34

p-value$

Medical use only

Recreational + medical use

p-value$

THC and CBD ratio

n = 231

n= 229

0.0150

n = 245

n = 230

0.9979

n = 120

n = 356

<0.0001

n = 476

 Equal THC and CBD

50 (21.65)

36 (15.72)

 

46 (18.78)

43 (18.70)

 

16 (13.33)

73 (20.51)

89 (18.70)

 CBD > THC

39 (16.88)

56 (24.45)

 

49 (20.00)

47 (20.43)

 

33 (27.50)

63 (17.70)

96 (20.17)

 THC > CBD

85 (36.80)

75 (32.75)

 

86 (35.10)

83 (36.09)

 

33 (27.50)

136 (38.20)

169 (35.50)

 Only CBD

21 (9.09)

37 (16.16)

 

31 (12.65)

28 (12.17)

 

27 (22.50)

32 (8.99)

59 (12.39)

 Only THC

36 (15.58)

25 (10.92)

 

33 (13.47)

29 (12.61)

 

11 (9.17)

52 (14.61)

63 (13.24)

CBD concentration

n = 217

n = 216

0.5007

n = 229

n = 219

0.0028

n = 110

n = 338

< 0.0001

n = 448

 <1%

40 (18.43)

31 (14.35)

 

41 (17.90)

33 (15.07)

 

12 (10.91)

62 (18.34)

 

74 (16.52)

 1–10%

82 (37.79)

78 (36.11)

 

95 (41.48)

73 (33.33)

 

30 17.86)

138 (40.83)

 

168 (37.50)

 > 10–20%

61 (28.11)

64 (29.63)

 

68 (29.69)

60 (27.40)

 

28 (25.45)

100 (29.59)

 

128 (28.57)

 >20%

34 (15.67)

43 (19.91)

 

25 (10.92)

53 (24.20)

 

40 (36.36)

38 (11.24)

 

78 (17.41)

THC concentration

n = 228

n = 226

<.0001

n = 243

n = 226

0.0764

n = 115

n = 355

<0.0001

n = 470

 <1%

23 (10.09)

43 (19.03)

 

32 (13.17)

35 (15.49)

 

33 (28.70)

34 (9.58)

 

67 (14.26)

 1–10%

37 (16.23)

60 (26.55)

 

55 (22.63)

46 (20.35)

 

29 (25.22)

72 (20.28)

 

101 (21.49)

 >10–20%

73 (32.02)

71 (31.42)

 

89 (36.63)

62 (27.43)

 

18 (15.65)

133 (37.46)

 

151 (32.13)

  >20%

95 (41.67)

52 (23.01)

 

67 (27.57)

83 (36.73)

 

35 (30.43)

116 (32.68)

 

151 (32.13)

Cannabis strain

n = 214

n = 196

0.3395

n = 222

n = 203

0.6900

n = 88

n = 338

0.8550

n = 426

 Sativa

47 (21.96)

50 (25.51)

 

48 (21.62)

51 (25.12)

 

21 (23.86)

79 (23.37)

 

100 (23.47)

 Indica

63 (29.44)

60 (30.61)

 

70 (31.53)

56 (27.59)

 

29 (32.95)

97 (28.70)

 

126 (29.58)

 Hybrid

49 (22.90)

50 (25.51)

 

52 (23.42)

52 (25.62)

 

20 (22.73)

84 (24.85)

 

104 (24.41)

 Mixed cannabis

55 (25.70)

36 (18.37)

 

52 (23.42)

44 (21.67)

 

18 (20.45)

78 (23.08)

 

96 (22.54)

Route of administration (n = 489)a

   

n = 252

n = 236

 

N = 122

N = 367

 

n = 489

 Smoking

193 (82.13)

188 (78.89)

0.3889

217 (86.11)

179 (75.85)

0.0038

76 (62.30)

321 (87.47)

<.0001

397 (81.19)

 Vaping

52 (22.13)

34 (14.29)

0.0270

48 (19.05)

38 (16.10)

0.3934

17 (13.93)

70 (19.07)

0.1985

87 (17.79)

 Vaporizingb

67 (28.51)

63 (26.47)

0.6193

71 (28.17)

63 (26.69)

0.7144

40 (32.79)

95 (25.89)

0.1396

135 (27.61)

 Oral administration

115 (48.94)

114 (47.90)

0.8215

123 (48.81)

112 (47.46)

0.7652

60 (49.18)

176 (47.96)

0.8147

236 (48.26)

Frequency of use

n = 220

n = 220

0.0539

n = 237

n = 217

0.4489

N = 114

N = 341

0.0068

n = 455

 < 1 day/month

8 (3.64)

18 (8.18)

 

15 (6.33)

11 (5.07)

 

13 (11.40)

13 (3.81)

 

26 (5.71)

 1 day/month

6 (2.73)

13 (5.91)

 

14 (5.91)

5 (2.30)

 

3 (2.63)

16 (4.69)

 

19 (4.18)

 2–3 days/month

22 (10.00)

31 (14.09)

 

26 (10.97)

28 (12.90)

 

18 (15.79)

36 (10.56)

 

54 (11.87)

 1–2 days/week

21 (9.55)

23 (10.45)

 

24 (10.13)

21 (9.68)

 

13 (11.40)

33 (9.68)

 

46 (10.11)

 3–4 days/week

34 (15.45)

23 (10.45)

 

32 (13.50)

25 (11.52)

 

18 (15.79)

39 (11.44)

 

57 (12.53)

 5–6 days/week

19 (8.64)

22 (10.00)

 

20 (8.44)

25 (11.52)

 

7 (6.14)

38 (11.14)

 

45 (9.89)

 Daily

110 (50.00)

90 (40.91)

 

106 (44.73)

102 (47.00)

 

42 (36.84)

166 (48.68)

 

208 (45.71)

Duration of use for medical purpose

n = 235

n = 238

0.1264

n = 252

n = 236

0.2320

N = 122

N = 367

< 0.0001

n = 489

 < 1 month

4 (1.70)

8 (3.36)

 

8 (3.17)

4 (1.69)

 

6 (4.92)

6 (1.63)

 

12 (2.45)

 1 to 6 months

15 (6.38)

25 (10.50)

 

19 (7.54)

23 (9.75)

 

15 (12.30)

27 (7.36)

 

42 (8.59)

 6–12 months

31 (13.19)

42 (17.65)

 

46 (18.25)

28 (11.86)

 

25 (20.49)

49 (13.35)

 

74 (15.13)

 1 to 2 years

45 (19.15)

44 (18.49)

 

45 (17.86)

46 (19.49)

 

32 (26.23)

59 (16.08)

 

91 (18.61)

 > 2 years

140 (59.68)

119 (50.00)

 

134 (53.17)

135 (57.20)

 

44 (36.07)

226 (61.58)

 

270 (55.21)

  1. Comparisons between groups were made using chi-square tests and p-value calculated. A p-value <0.05 was considered as statistically significant
  2. THC Tetrahydrocannabinol, CBD Cannabidiol
  3. $See supplemental Table 1 for pairwise comparisons for categorical variables with a significant global p-value
  4. aAs routes of administration were not mutually exclusive, a global p-value was not computed (the comparisons were made for each single route of administration)
  5. bVaporizing consists to heat dry cannabis to release active ingredients as opposed to vaping that uses liquid preparation