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Table 1 Past-year cannabis use by demographic characteristics of respondents a

From: Frequency of cannabis use and alcohol-associated adverse effects in a representative sample of U.S. adolescents and youth (2002–2014) a cross-sectional study

Characteristics of cannabis Use

(1–20 days per month)

21–30 days per month)

No past 12 months use

No lifetime use

P-Valueb

n = 48,661 (10.5)

n = 53,805 (11.6)

n = 64,425 (13.8)

n = 298,199 (64)

No.(Row.%)

No.(Row.%)

No.(Row.%)

No.(Row.%)

Age

    

<.001

 12

204 (1)

219 (0.7)

159 (0.4)

35,331 (98.4)

 

 13

742 (2)

786 (2.1)

425 (1.1)

36,193 (94.9)

 14

1843 (4.8)

1829 (4.8)

890 (2.3)

33,874 (88.1)

 15

3406 (8.7)

3383 (8.6)

1620 (4.1)

30,913 (78.6)

 16

4870 (12.3)

4739 (12)

2550 (6.4)

27,451 (69.3)

 17

5659 (14.6)

5847 (15.1)

3411 (8.8)

23,923 (61.6)

 18

4941 (15.2)

5671 (17.4)

3708 (11.4)

18,278 (56.1)

 19

4800 (16.2)

5248 (17.7)

4432 (14.9)

15,195 (51.2)

 20

4476 (15.5)

5175 (10.7)

5667 (19.6)

13,623 (47.1)

 21

4297 (14.7)

4958 (17.9)

6951 (23.8)

13,020 (44.6)

 22 or 23

7339 (12.7)

8730 (17)

16,327 (28.3)

25,334 (43.9)

 24 or 25

6084 (10.7)

7220 (15.1)

18,285 (32.3)

25,064 (44.3)

Gender

    

<.001

 Male

26,961 (11.8)

28,988 (12.6)

29,459 (12.9)

143,841 (62.7)

 

 Female

21,700 (9.2)

24,817 (10.5)

34,966 (14.8)

154,358 (65.5)

Race/Ethnicity

    

<.001

 Non-Hispanic White

29,748 (10.6)

35,715 (12.3)

40,988 (14.6)

173,645 (62)

 

 Non-Hispanic Black/African American

7138 (11.4)

6282 (10)

7420 (13.2)

42,022 (66.9)

 Hispanic

7450 (9.3)

7229 (9)

10,604 (13.2)

54,830 (68.4)

 Other Race

4325 (10.3)

4579 (10.9)

5413 (12.9)

27,702 (65.9)

  1. Abbreviations: n is actual sample size, No number of participants, Row Row percentage presented
  2. a Data are from the U.S. National Survey on Drug Use and Health 2002–2014 age 12 to 25 years old
  3. b P-values are from binary analysis using a χ2 Chi-square test for all variables (categorical)