Table 1 Mean (SD) Hours of Screen Use at Each Time Point, by Cohort

3.05 (2.32)

2.65 (2.16)

2.60 (2.13)

2.60 (2.12)

2.89 (2.22)

3.02 (2.20)

3.92 (2.44)

3.78 (2.61)

3.67 (2.28)

3.89 (2.47)

3.92 (2.38)

4.04 (2.43)

4.95 (2.70)

4.53 (2.47)

4.57 (2.44)

4.66 (2.63)

4.63 (2.60)

4.48 (2.47)

0.88 (1.77)

0.86 (1.84)

0.76 (1.40)

0.93 (1.75)

1.18 (2.00)

1.30 (1.99)

1.70 (2.45)

1.71 (2.51)

1.58 (2.17)

1.72 (2.41)

1.82 (2.33)

1.93 (2.32)

2.52 (2.99)

2.17 (2.58)

2.20 (2.56)

2.28 (2.71)

2.48 (2.69)

2.19 (2.50)

2.09 (2.28)

1.86 (2.26)

1.64 (2.06)

1.60 (1.94)

1.41 (2.02)

1.38 (1.97)

1.88 (2.16)

1.71 (2.43)

1.27 (1.85)

1.43 (2.10)

1.29 (2.24)

1.23 (2.10)

1.62 (2.33)

1.57 (2.37)

1.40 (2.22)

1.42 (2.43)

1.31 (2.57)

1.17 (2.29)

1.46 (1.93)

1.35 (1.81)

1.26 (1.65)

1.25 (1.64)

1.46 (1.64)

1.34 (1.47)

1.73 (1.99)

1.90 (2.15)

1.64 (1.64)

1.84 (2.10)

1.78 (1.94)

1.79 (1.95)

2.09 (2.17)

2.04 (2.14)

1.87 (2.25)

2.17 (2.20)

2.42 (2.50)

2.15 (2.42)

2.45 (2.28)

2.18 (2.17)

2.09 (1.96)

2.14 (2.11)

2.06 (1.99)

2.04 (1.89)

2.73 (2.41)

2.80 (2.52)

2.35 (2.01)

2.47 (2.33)

2.41 (2.27)

2.48 (2.28)

3.02 (2.59)

2.84 (2.32)

2.69 (2.43)

2.73 (2.53)

2.59 (2.57)

2.56 (2.65)