Table 2

Self-reported sleep outcomes of included participants from the National Health and Nutrition Examination Survey, 2005–2018

Cannabis use in past 30 days?P value
No (n=18,597)Yes (n=3132)
Represented no of adults in the USA125,275,28021,142, 592
Nightly sleep duration, n (%)
 <6 hours2537 (11.6)554 (15.7)<0.001
 6–9 hours15,358 (85.3)2376 (77.8)
 >9 hours702 (3.1)202 (6.5)
Told doctor about trouble with sleep, n (%)4309 (25.6)877 (29.7)<0.001
Trouble with sleep in past 2 weeks, n (%)*7024 (38.0)1470 (47.0)<0.001
No (n=10,226)Yes (n=1752)
Represented no of adults in the USA125,161,10822,217,277
Daytime sleepiness (≥5 of past 30 days), n (%)†2288 (23.7)467 (26.7)<0.01
  • All proportions displayed are weighted to represent the non-institutionalized population in the continental USA. Survey weights are adjusted by the number of years of data included in analysis.

  • P values reflect χ2 analysis used to test significance between groups for categorical variables.

  • *Defined as any score greater than 0 on Item #3 of the Patient Health Questionnaire: ‘Have you had trouble falling asleep, staying asleep, or sleeping too much over the past 2 weeks?’.

  • †Only respondents from the 2 year survey cycles (2005–2006, 2007–2008, 2015–2016, 2017–2018) with this variable were included in the regression model for this outcome.