Table 1

Comparison of weighted baseline respondent sociodemographic characteristics stratified by waterpipe and cigarette tobacco smoking in the past 30 days*

Sociodemographic characteristicsProportion of sample (%)Waterpipe smoking within 30 days (%)Cigarette smoking within 30 days (%)
Yes (n=210)No (n=3044)Yes (n=762)No (n=2492)
Sex, female51.051.251.050.751.1
Age (years)†‡
 18–2021.736.620.916.823.2
 21–2323.926.123.723.024.1
 24–2622.824.922.727.821.3
 27–3031.712.432.732.331.5
Race and ethnicity§
 White, non-Hispanic57.555.157.658.257.3
 Black, non-Hispanic13.29.613.413.913.0
 Hispanic20.326.420.022.119.8
 Other, non-Hispanic9.08.99.05.810.0
Educational level‡
 High school or less39.438.739.452.935.3
 Some college38.546.338.036.439.1
 Bachelor’s degree or higher22.215.022.610.725.7
Household income‡
 Under $30 00019.523.619.327.817.0
 $30 000–$74 99933.634.933.537.432.4
 $75 000 and above46.941.547.234.850.6
  • *Percentage totals may not equal 100 due to rounding. For more information on unweighted data, see table 1 in the online supplementary appendix.

  • †Indicates a significant difference between respondents who smoked waterpipe within the past 30 days and those who did not. Significance determined by χ2 tests and a p value <0.05.

  • ‡Indicates a significant difference between respondents who smoked a cigarette(s) within the past 30 days and those who did not. Significance determined by χ2 tests and a p value <0.05.

  • §Race and ethnic groups were self-reported; the category ‘Other, non-Hispanic’ includes those who self-identified as multiracial.