Table 1 Demographic characteristics of study participants
|  | All participants (N = 926) | Light users (n = 296) | Moderate users (n = 311) | Heavy users (n = 319) |
|---|---|---|---|---|
Total screen time (minutes per day)* | 690 (480–916.25) | 420 (328.50–480) | 675 (615–750) | 1050 (900–1290) |
Age* | 34 (28–45) | 34 (28–45) | 35.5 (28–49) | 32 (27–41.25) |
Sex | ||||
 Male | 44.9 | 42 | 45.8 | 46.5 |
 Female | 55.1 | 58 | 54.2 | 53.5 |
Race/ethnicity* | ||||
 Non-Hispanic White | 72.7 | 78.2 | 76.8 | 63.7 |
 Hispanic | 7.7 | 7.1 | 7.7 | 8.2 |
 African-American | 8.6 | 4.8 | 6.5 | 14.2 |
 Asian or Pacific Islander | 8.4 | 7.8 | 6.5 | 10.7 |
 Native American | 2.6 | 2.0 | 2.6 | 3.2 |
Employment | ||||
 Full-time (≥ 35 h/wk) | 63.5 | 60.0 | 61.9 | 68.2 |
 Part-time (<  35 h/wk) | 17.0 | 16.6 | 18.7 | 15.7 |
 Not currently employed/retired | 19.5 | 23.4 | 19.4 | 16.0 |
Income | ||||
 Less than 30,000 | 21.8 | 17.6 | 20.6 | 26.7 |
 30,000 – 59,999 | 42.1 | 45.8 | 41.6 | 39.3 |
 More than 59,999 | 36.1 | 36.6 | 37.7 | 34.0 |
Education | ||||
 Less than high school | 0.5 | 0.3 | 0.3 | 0.9 |
 High school/ GED/some college | 36.4 | 35.9 | 37.2 | 36.0 |
 Associate’s degree | 12.1 | 12.5 | 12.3 | 11.4 |
 Bachelor’s degree | 37.4 | 34.2 | 38.2 | 39.4 |
 Graduate or professional degree | 13.7 | 16.9 | 12.0 | 12.3 |
Marital status | ||||
 Single (never married) | 31.3 | 27.8 | 31.1 | 34.7 |
 Married or in a committed relationship | 60.5 | 66.1 | 60.2 | 55.5 |
 Separated or divorced | 6.4 | 4.4 | 6.8 | 7.9 |
 Widowed | 1.8 | 1.7 | 1.9 | 1.9 |