TABLE 2.
Average Daily Sleep Duration, TV Viewing, and Bedroom TV by Assessment Year
| Assessment | Average Daily Sleep, Hours per Day | Average Daily TV Viewing, Hours per Day | Bedroom TV | ||
|---|---|---|---|---|---|
| N | Mean (SD) | N | Mean (SD) | N (%) | |
| 6 mo | 1673 | 12.2 (2.0) | 1673 | 0.9 (1.2) | — |
| 1 y | 1227 | 12.8 (1.6) | 1224 | 1.2 (1.5) | — |
| 2 y | 1360 | 12.0 (1.3) | 1266 | 1.4 (1.2) | — |
| 3 y | 1242 | 11.2 (1.1) | 1263 | 1.7 (1.1) | — |
| 4 y | 1202 | 10.8 (1.1) | 1235 | 1.7 (1.0) | 207 (17) |
| 5 y | 863 | 10.6 (1.0) | 859 | 1.6 (1.0) | 128 (15) |
| 6 y | 955 | 10.3 (0.9) | 941 | 1.5 (0.9) | 143 (15) |
| 7 y | 1170 | 9.8 (0.9) | 1162 | 1.6 (1.0) | 269 (23) |
Data from 1864 participants in the Project Viva cohort.