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Table 1 Selected Charcteristics of the Study Participants by Cannabis Use Status. Data for the US NHANES, 2005–2016

From: Total and differential white blood cell count in cannabis users: results from the cross-sectional National Health and Nutrition Examination Survey, 2005–2016

Cannabis use status

Never

(n = 7649)

Former

(n = 6608)

Occasional

(n = 1109)

Heavy

(n = 1064)

p-valuea

Selected charcteristics

Mean (SE) or unweighted n (weighted column%)b

Age (years)

40 (0.2)

41 (0.2)

35 (0.6)

35 (0.6)

< 0.0001

Female

4302 (55%)

3055 (47%)

450 (39%)

327 (32%)

< 0.0001

Race/ethnicity

 White

2255 (55%)

3510 (76%)

501 (66%)

530 (70%)

< 0.0001

 Black

1346 (11%)

1376 (10%)

329 (17%)

298 (15%)

 

 Hispanic

2940 (24%)

1270 (10%)

194 (12%)

159 (10%)

 

 All others

1108 (11%)

452 (4%)

85 (6%)

77 (5%)

 

Education

  < high school

1984 (18%)

1027 (11%)

234 (16%)

256 (20%)

< 0.0001

 High school

1540 (20%)

1491 (21%)

291 (25%)

305 (27%)

 

  > high school

4125 (62%)

4090 (68%)

584 (59%)

503 (53%)

 

Tobacco cigarette smoking

 Never

6012 (81%)

2920 (45%)

376 (33%)

228 (21%)

< 0.0001

 Former

823 (10%)

1747 (29%)

174 (20%)

189 (21%)

 

 Occasional

213 (2%)

380 (5%)

108 (10%)

104 (9%)

 

 Daily

601 (7%)

1561 (21%)

451 (37%)

543 (48%)

 

Alcohol drinking

 Non-drinker

2872 (34%)

1124 (15%)

76 (6%)

97 (8%)

< 0.0001

 Occasional

4460 (64%)

5231 (81%)

970 (88%)

902 (85%)

 

 Daily

117 (2%)

253 (4%)

63 (6%)

65 (7%)

 

Survey cycle

 2005–06

1010 (16%)

1035 (17%)

143 (15%)

124 (15%)

0.05

 2007–08

1239 (16%)

1234 (18%)

173 (15%)

153 (13%)

 

 2009–10

1453 (17%)

1176 (16%)

202 (16%)

200 (16%)

 

 2011–12

1236 (16%)

1069 (17%)

177 (17%)

181 (17%)

 

 2013–14

1337 (17%)

1155 (17%)

216 (17%)

208 (19%)

 

 2015–16

1374 (18%)

939 (15%)

198 (20%)

198 (21%)

 

BMI (Kg/m2)

29 (0.1)

29 (0.1)

27 (0.2)

27 (0.2)

< 0.0001

  1. a P-value for global test: ANOVA for continuous variables and Pearson χ2 tests for categorical variables
  2. b Percentages may not add up to 100% due to rounding