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

Table 5.

Changes in sleep latency before and during lockdown.

[5–15’] [15–30’] [30–60’] [>60’] Chi square p
Weekdays
1–3 years
 before 466 (37.79%) 572 (46.39%) 179 (14.52%) 16 (1.30%) 148.06 <0.00001
 during 276 (21.99%) 547 (43.59%) 352 (28.05%) 80 (6.37%)
4–5 years
 before 436 (50.23%) 347 (39.98%) 80 (9.22%) 5 (0.58%) 120.41 <0.00001
 during 277 (31.26%) 372 (41.99%) 174 (19.64%) 63 (7.11%)
6–12 years
 before 1098 (61.24%) 569 (31.73%) 116 (6.47%) 10 (0.56%) 375.93 <0.00001
 during 675 (36.74%) 615 (33.48%) 412 (22.43%) 135 (7.35%)
13–18 years
 before 163 (54.15%) 97 (32.23%) 37 (12.29%) 4 (1.33%) 44.75 <0.00001
 during
105 (34.09%)
111 (36.04%)
53 (17.21%)
39 (12.66%)


Weekend
1–3 years
 before 426 (33.97%) 619 (49.36%) 190 (15.15%) 19 (1.52%) 128.23 <0.00001
 during 275 (21.93%) 541 (43.14%) 354 (28.23%) 84 (6.70%)
4–5 years
 before 401 (45.12%) 381 (42.76%) 104 (11.67%) 4 (0.45%) 88.83 <0.00001
 during 284 (31.91%) 371 (41.69%) 172 (19.33%) 63 (7.08%)
6–12 years
 before 1045 (57.07%) 611 (33.37%) 161 (8.79%) 14 (0.76%) 269.80 <0.00001
 during 700 (38.21%) 599 (32.70%) 389 (21.23%) 144 (7.86%)
13–18 years
 before 153 (49.68%) 106 (34.42%) 42 (13.64%) 7 (2.27%) 31.51 <0.00001
 during 110 (35.95%) 103 (33.66%) 53 (17.32%) 40 (13.07%)