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. 2021 Feb 9;91:166–174. doi: 10.1016/j.sleep.2021.02.003

Table 7.

Changes in screen time before and during lockdown.

[<1 h] [1–2 h] [3–4 h] [>4 h] Chi square p
1–3 years before 813 (61.08%) 483 (36.29%) 33 (2.48%) 2 (0.15%) 400.44 <0.00001
during 435 (38.70%) 327 (29.09%) 295 (26.25%) 67 (5.96%)
4–5 years before 421 (39.79%) 571 (53.97%) 61 (5.77%) 5 (0.47%) 669.20 <0.00001
during 105 (11.77%) 255 (28.59%) 389 (43.61%) 143 (16.03%)
6–12 years before 934 (35.30%) 1474 (55.71%) 206 (7.79%) 32 (1.21%) 1964.17 <0.00001
during 162 (7.17%) 532 (23.54%) 1033 (45.71%) 533 (23.58%)
13–18 years before 73 (11.87%) 323 (52.52%) 150 (24.39%) 69 (1.22%) 464.49 <0.00001
during 7 (1.25%) 32 (5.69%) 198 (35.23%) 325 (57.83%)