Table 1

Descriptive Statistics

MalesFemales
Mean 1Standard Deviation 2Mean 3Standard Deviation 4
Dependent variables
    Frequency of drinking alcohol in past 12 monthsa  25.232  64.299  13.871  39.707
    Frequency of drinking to intoxication in past 12 monthsa  15.965  53.918    7.096  29.571
    Frequency of smoking cigarettes in past 12 monthsa  46.239107.200  44.525105.451
SES and relative deprivation measures
    Head of household educationb  13.800    3.548  13.506    3.434
    Relative deprivationc    1.628    1.854    1.684    1.817
    Mean standardized relative deprivationc    0.120    0.138    0.126    0.137
    Head of household’s education, grade percentile rank    0.366    0.263    0.348    0.259
Individual characteristics
    Age  15.187    1.663  14.998    1.658
    Race
        White    0.670    0.470    0.655    0.475
        Black    0.150    0.357    0.185    0.388
        Asian    0.068    0.252    0.062    0.241
        Native American    0.050    0.219    0.055    0.228
        Other race/ethnicity    0.087    0.282    0.083    0.276
    Hispanic ethnicity    0.145    0.352    0.141    0.349
    U.S.-born    0.893    0.309    0.905    0.293
    Season of interview
        Fall    0.858    0.349    0.855    0.352
        Spring    0.089    0.284    0.087    0.282
        Winter    0.053    0.224    0.057    0.232
Grade-level characteristics
    Number of students in grade263.565138.948261.728139.841
Basic household characteristics
    Household size    4.265    1.126    4.317    1.120
    Single-father household    0.043    0.203    0.025    0.156
    Single-mother household    0.173    0.379    0.203    0.402
    Two-parent household    0.783    0.412    0.772    0.419
    Number of observations (N)31,63533,963

  • Source: Add Health, In-School Survey.

  • Notes:

  • ↵a. Figures are expressed in terms of days.

  • ↵b. Figures are expressed in terms of years.

  • ↵c. Relative deprivation measure is based on the head of household’s education.