Table 1. Descriptive Statistics for Key Time-Varying Variables Summarized in Age Groups in the Growing Up Today Study (n Represents Person-Period Observations)*.
| MALES | %(n) or M(SD) | ||
|---|---|---|---|
| 13-14 Years Old (n=2121) | 16-17 Years Old (n=3840) | 19-20 Years Old (n=3504) | |
| Sexual Orientation (%[n]) | |||
| Gay/Bisexual | 0.6% (11) | 1.7% (62) | 3.0% (102) |
| Mostly Heterosexual | 2.9% (53) | 4.1% (145) | 5.2% (178) |
| Completely Heterosexual | 96.5% (1743) | 94.2% (3372) | 91.9% (3163) |
| Hours/Week MVPA (M[SD]) | 11.93 (8.06) | 11.15 (8.10) | 8.26 (7.52) |
| Athletic Self-Esteem (M[SD]) | 1.33 (0.44) | 1.26 (0.52) | 1.24 (0.59) |
| Asthma (%[n]) | 20.8% (403) | 21.3% (749) | 20.9% (694) |
| Obesity (%[n]) | 5.3% (105) | 5.1% (155) | 7.8% (208) |
| FEMALES | %(n) or M(SD) | ||
|---|---|---|---|
| 13-14 Years Old (n=2756) | 16-17 Years Old (n=5761) | 19-20 Years Old (n=6044) | |
| Sexual Orientation (%[n]) | |||
| Lesbian/Bisexual | 0.8% (20) | 1.9% (106) | 2.9% (172) |
| Mostly Heterosexual | 4.7% (114) | 8.6% (467) | 10.1% (606) |
| Completely Heterosexual | 94.5% (2316) | 89.5% (4891) | 87.0% (5215) |
| Hours/Week MVPA (M[SD]) | 9.97 (7.12) | 9.09 (7.07) | 6.31 (6.14) |
| Athletic Self-Esteem (M[SD]) | 1.17 (0.46) | 1.02 (0.55) | .94 (0.60) |
| Asthma (%[n]) | 17.8% (455) | 21.8% (1136) | 22.8% (1276) |
| Obesity (%[n]) | 3.1% (82) | 3.1% (171) | 7.1% (421) |
*
Note: Variable n's might not sum to total person-period observations in each age range due to varying waves of assessments of variables and missing values. M(SD): Mean(Standard Deviation)