Table 1:
Quartile table showing the relationship between youth-reported total screen activity and socio-demographic variables.
| Total Week Screen Media | 1st Quartile | 2nd Quartile | 3rd Quartile | 4th Quartile | |
|---|---|---|---|---|---|
| Activity (hours) [youth report] | 0–11 | 11–19.5 | 19.5–33.8 | 33.8–163 | p |
| n | 1076 | 1085 | 1034 | 1062 | |
| Average Screen Time (hours/week) | 6.94 (2.76) | 15.25 (2.48) | 26.08 (4.05) | 54.01 (19.13) | <0.001 |
| Age in Months (mean (sd)) | 119.38 (7.23) | 120.32 (7.26) | 120.38 (7.57) | 120.04 (7.26) | 0.006 |
| Height (in) (mean (sd)) | 55.26 (2.92) | 55.43 (3.12) | 55.49 (3.15) | 55.56 (3.41) | 0.147 |
| Weight (lbs) (mean (sd)) | 77.71 (19.23) | 81.09 (21.32) | 82.58 (23.02) | 87.65 (25.89) | <0.001 |
| Body Mass Index (mean (sd)) | 17.75 (3.45) | 18.40 (3.75) | 18.67 (4.04) | 19.72 (4.39) | <0.001 |
| Gender (female) (%) | 625 (58.1) | 520 (47.9) | 453 (43.8) | 421 (39.6) | <0.001 |
| Race/ Ethnicity (%) | <0.001 | ||||
| White | 745 (69.3) | 700 (64.5) | 587 (56.8) | 487 (45.9) | |
| Black | 43 (4.0) | 55 (5.1) | 99 (9.6) | 202 (19.0) | |
| Hispanic | 149 (13.9) | 210 (19.4) | 222 (21.5) | 246 (23.2) | |
| Asian | 36 (3.3) | 30 (2.8) | 21 (2.0) | 10 (0.9) | |
| Other | 102 (9.5) | 90 (8.3) | 105 (10.2) | 116 (10.9) | |
| Parental Education (%) | <0.001 | ||||
| <= 12 grades | 87 (8.1) | 117 (10.8) | 152 (14.7) | 172 (16.2) | |
| HS Degree | 25 (2.3) | 38 (3.5) | 46 (4.4) | 50 (4.7) | |
| Some College | 160 (14.9) | 221 (20.4) | 300 (29.0) | 406 (38.2) | |
| Bachelor | 363 (33.7) | 400 (36.9) | 290 (28.0) | 263 (24.8) | |
| Higher | 441 (41.0) | 308 (28.4) | 246 (23.8) | 168 (15.8) | |
| Not known | 0 (0.0) | 1 (0.1) | 0 (0.0) | 3 (0.3) | |
| Parents married (yes) (%) | 872 (81.0) | 829 (76.4) | 719 (69.5) | 615 (57.9) | <0.001 |
| Parental Income (%) | <0.001 | ||||
| [<50K] | 144 (13.4) | 171 (15.8) | 252 (24.4) | 399 (37.6) | |
| [>=50K & <100K] | 243 (22.6) | 313 (28.8) | 327 (31.6) | 310 (29.2) | |
| [>=100K] | 610 (56.7) | 517 (47.6) | 378 (36.6) | 262 (24.7) | |
| Refused to state | 79 (7.3) | 84 (7.7) | 77 (7.4) | 91 (8.6) | |
| Parental Age (mean (sd)) | 41.55 (6.09) | 41.03 (6.31) | 40.16 (7.16) | 39.16 (7.19) | <0.001 |