Table 1.
Sample characteristics
| Variable | Description and coding | Percentage/ mean (S.D.) |
|---|---|---|
| Obesity | BMI > 30, Wave IV | 34.12% |
| College degree | Holding a bachelor’s degree or higher by Wave IV | 32.43% |
| Age | Age, Wave IV | 28.37 |
| (1.75) | ||
| Sex | Female = 1, male = 0 | 53.42% |
| Parental education | Highest degree attained by parents, Wave I | |
| More than high school | 60.80% | |
| High school | 31.26% | |
| Below high school | 7.93% | |
| Biological parents | Lived with biological father and mother, Wave I | 58.77% |
| PVT score | Verbal IQ score, Wave I | 105.09 (11.82) |
| Self-control | Sum of responses to the following questions, Wave I. Higher scores indícate | 8.25 |
| higher levels of self-control. Score ranges from 1 to 19. 1. had trouble getting along with teachers; 2. had trouble paying attention in school; 3. had trouble getting homework done; 4. had trouble keeping your mind on what you were doing; and 5. felt like doing everything just about right. |
(2.25) | |
| Household size | The number of individuals living with the respondent, Wave IV | 3.07 (1.42) |
| Employment | Employed: worked for pay at least 10 hours a week, Wave IV | 81.52% |
| Marital status | Married = 1, not married = 0, Wave IV | 50.40% |
| Physical activitya | Sum of frequency occurrences (bouts) of the following moderate to vigorous physical activities (MVPA) in the past seven days, Wave IV bicycle, skateboard, dance, hike, hunt, yard work, roller blade, roller skate, downhill ski, snow board, racquet sports, aerobics, football, soccer, basketball, lacrosse, rugby, field hockey, ice hockey, run, wrestle, swim, cross-country ski, cycle race, martial arts, gymnastics, weight lifting, strength training, golf, fish, bowl, softball, baseball, walk for exercise | |
| 0 bouts | 13.40% | |
| 1 to 4 bouts | 32.20% | |
| 5 bouts or more | 54.40% | |
| Inactivity scorea | In the past seven days, hours spent on watching television/videos, playing video/computer games, and using a computer, Wave IV | |
| Low: 10 hours or below | 46.97% | |
| Mediumml: 11 to 24 hours | 34.67% | |
| High: 25 hours or more | 18.35% | |
| N | 5,105 |