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. Author manuscript; available in PMC: 2022 Feb 1.
Published in final edited form as: Am J Prev Med. 2020 Dec 10;60(2):258–266. doi: 10.1016/j.amepre.2020.06.029

Table 2.

Weighted Participant Characteristics Stratified by Past 30–day Marijuana Status

Variable Total sample Past 30 day
Has not used
marijuana
p-value Past 30
day
Has vaped
marijuana
p-value Past 30
day
Has used
marijuana
(not
vaped)
p-
value
(n=5,755) (n=5,062) (n=336) (n=392)
Sex
 Male 50.6 (2,915) 88.0 (2,567) 0.637 6.1 (175) 0.301 7.2 (210) 0.05
 Female 49.4 (2,840) 87.8 (2,495) 0.637 5.5 (161) 0.301 6.8 (182) 0.05
Race/Ethnicity
 Black 11.6 (505) 87.3 (441) <0.001 2.4 (12) <0.001 10.8 (53) 0.310
 White 44.2 (3,110) 88.8 (2,760) 0.003 6.0 (188) 0.001 6.1 (179) 0.002
 Hispanic 20.0 (1,064) 90.3 (922) 0.615 6.7 (72) 0.042 8.3 (82) 0.012
 Other 23.8 (1,076) 87.27 (939) 0.736 6.0 (64) 0.001 7.7 (78) 0.005
Geographical region
 Northeast 20.4 (1,173) 85.6 (1,005) 0.008 6.9 (81) 0.045 8.8 (96) <0.001
 North Central 26.7 (1,537) 90.6 (1,392) 0.023 5.0 (77) 0.026 5.3 (78) <0.001
 South 31.2 (1,797) 89.4 (1,606) 0.633 3.4 (67) <0.001 7.6 (131) <0.001
 West 21.7 (1,248) 84.9 (1,059) 0.453 9.0 (111) <0.001 7.6 (87) <0.001
Metropolitan statistical area (MSA)/ Urbanicity
 MSA 78.8 (4,536) 88.7 (5,894) 0.085 6.4 (289) 0.001 7.2 (304) 0.172
 Non-MSA 21.2 (1,219) 90.1 (1,561) 0.085 3.9 (47) 0.001 7.5 (88) 0.172
Parental education
 Father
  No college 35.6 (2,056) 84.6 (1,740) <0.001 7.0 (142) <0.001 9.8 (187) <0.001
  Some college 50.2 (2,889) 90.27 (2,608) <0.001 5.1 (150) 0.078 5.4 (147) <0.001
  Don’t know 14.0 (810) 88.15 (714) <0.001 5.4 (44) 0.079 7.6 (58) <0.001
 Mother
  No college 27.5 (1,587) 84.8 (1,345) <0.001 6.6 (105) 0.003 10.0 (148) <0.001
  Some college 63.7 (3,665) 89.0 (3,265) <0.001 5.8 (212) 0.249 6.0 (210) <0.001
  Don’t know 8.7 (503) 89.9 (452) <0.001 3.8 (19) 0.096 7.0 (34) <0.001
College plans
 Definitely will attend 92.6 (5,326) 88.9 (4,739) <0.001 10.7 (46) <0.001 6.5 (327) <0.001
 Will not attend/other 7.5 (429) 75.3 (323) <0.001 5.4 (290) <0.001 16.9 (65) <0.001

Notes: Boldface indicates statistical significance (p<0.05). The bivariate associations between different categories of past 30–day marijuana use (i.e., no marijuana use, marijuana vaping only, marijuana use only) and for each level of demographic characteristics shown in Table 2. The 3 categories are mutually exclusive: the first column checks associations of each explanatory variable with no marijuana use, the second column with past 30–day marijuana vaping, and the third with past 30–day marijuana use (not vaped). The Other race category includes all responses other than Black or African American, White (Caucasian), Hispanic (Mexican, Cuba, Puerto Rican, Other Hispanic). It therefore includes Asian American, American Indian or Alaska Native as well as Native Hawaiian or Other Pacific Islander and respondents who fell into more than 1 of those 3 categories. Bivariate associations of the explanatory variables race, geographical region, and parental education were assessed by checking associations of each separate outcome with the reference group of not being included in the outcome being tested. Displayed percentages. Sample size in parenthesis.

Source: Monitoring the Future Survey, 2018.