All participants | Children | Adolescents | ||||||
---|---|---|---|---|---|---|---|---|
Boys | Girls | Boys | Girls | All | Boys | Girls | All | |
Time-use estimates | ||||||||
Sleep (min⋅d− 1) | 450.5 (442.1, 458.8) | 463.5* (456.8, 470.3) | 465.9 (455.7, 476.2) | 486.4 (477.9, 494.9) | 476.2*** (469.5, 482.8) | 435.0 (421.7, 448.2) | 440.6 (430.1, 451.2) | 437.8 (429.4, 446.3) |
ST (min⋅d− 1) | 569.2 (532.1, 606.3) | 566.1 (528.3, 603.9) | 512.8 (482.4, 543.2) | 514.0 (485.5, 542.4) | 513.4 (486.4, 540.4) | 619.5 (550.0, 688.9) | 624.5 (555.8, 693.2) | 622.0** (554.1, 689.9) |
LPA (min⋅d− 1) | 283.6 (250.4, 316.7) | 286.0 (253.2, 318.8) | 305.8 (280.4, 331.1) | 303.8 (279.6, 327.9) | 304.8 (281.4, 328.2) | 261.4 (200.0, 322.8) | 268.2 (207.1, 329.2) | 264.8 (204.2, 325.3) |
MPA (min⋅d− 1) | 60.6*** (54.7, 66.5) | 48.9 (43.3, 54.6) | 67.4 (62.0, 72.8) | 55.5 (50.7, 60.4) | 61.4* (57.1, 65.8) | 53.8 (43.12, 64.4) | 42.4 (32.0, 52.8) | 48.1 (37.9, 58.3) |
VPA (min⋅d− 1) | 10.5*** (9.1, 12.0) | 6.5 (5.1, 7.9) | 12.9 (11.5, 14.3) | 8.8 (7.6, 10.0) | 10.9** (9.8, 11.9) | 8.1 (5.6, 10.7) | 4.3 (1.7, 6.8) | 6.2 (3.6, 8.8) |
Sleep quality | ||||||||
Sleep efficiency (%) | 87 (86, 87) | 88 (87, 88) | 86 (85, 87) | 87 (86, 88) | 86 (86, 87) | 88 (86, 89) | 88 (97, 89) | 88** (87, 89) |
Night awakenings | 20.5 (19.6, 21.4) | 20.0 (18.3, 21.7) | 21.2 (20.3, 22.0) | 21.0 (20.3, 21.8) | 21.1 (20.5, 21.7) | 19.9 (17.9, 21.9) | 19.0 (4.7, 33.3) | 19.4 (-250.0, 289.0) |
Sleep onset time (decimal hours) | 22.42 (22.06, 22.78) | 22.37 (21.79, 22.94) | 21.66 (21.35, 21.96) | 21.74 (21.47, 22.01) | 21.70 (21.45, 21.95) | 23.2 (22.4, 24.0) | 23.0 (20.5, 25.5) | 23.09 (10.36, 35.82) |
24-h rest-activity rhythms | ||||||||
Mesor (log mg + 1) | 2.31 (2.18, 2.44) | 2.31 (2.19, 2.44) | 2.50 (2.40, 2.61) | 2.47 (2.37, 2.57) | 2.49** (2.39, 2.58) | 2.12 (1.89, 2.36) | 2.16 (1.93, 2.39) | 2.14 (1.91, 2.37) |
Amplitude (log mg + 1) | 2.78*** (2.61, 2.95) | 2.35 (2.19, 2.52) | 2.83 (2.65, 3.01) | 2.38 (2.23, 2.54) | 2.61 (2.48, 2.74) | 2.73 (2.42, 3.03) | 2.33 (2.00, 2.65) | 2.53 (2.17, 2.88) |
Acrophase time (decimal hours) | 14.55 (14.31, 14.78) | 14.58 (14.35, 14.81) | 14.28 (14.09, 14.48) | 14.38 (14.20, 15.46) | 14.33 (14.16, 14.50) | 14.81 (14.38, 15.24) | 14.78 (14.35, 15.21) | 14.79* (14.37, 15.22) |
IS | 0.54 (0.47, 0.60) | 0.52 (0.46, 0.58) | 0.52 (0.47, 0.57) | 0.52 (0.47, 0.56) | 0.52 (0.47, 0.56) | 0.56 (0.44, 0.68) | 0.52 (0.41, 0.64) | 0.54 (0.42, 0.66) |
IV | 0.77 (0.70, 0.85) | 0.81 (0.74, 0.89) | 0.80 (0.74, 0.86) | 0.82 (0.76, 0.87) | 0.81 (0.75, 0.86) | 0.75 (0.61, 0.89) | 0.81 (0.68, 0.95) | 0.78 (0.64, 0.92) |
L5 (mg) | 5.1 (2.4, 7.8) | 5.1 (2.5, 7.8) | 6.4 (4.5, 8.3) | 6.4 (4.5, 8.2) | 6.4 (4.5, 8.2) | 3.8 (-1.3, 8.8) | 3.9 (-1.1, 9.0) | 3.9 (-1.2, 8.9) |
M10 (mg) | 85.0*** (78.6, 91.5) | 71.3 (65.0, 77.6) | 92.8 (86.7, 98.9) | 80.6 (75.2, 86.0) | 86.7* (81.9, 91.5) | 77.3 (50.4, 65.6) | 62.0 (50.4, 73.5) | 69.6 (58.2, 81.0) |
Directly measured acceleration | ||||||||
AvAcc (mg) | 44.9*** (41.1, 48.6) | 39.5 (35.9, 43.1) | 49.0 (45.8, 52.3) | 43.9 (41.0, 46.9) | 46.5* (43.8, 49.2) | 40.7 (33.9, 47.5) | 35.1 (28.4, 41.7) | 37.9 (31.3, 44.5) |
Intensity gradient | -2.03*** (-2.08, -1.97) | -2.12 (-2.17, -2.06) | -1.96 (-2.01, -1.92) | -2.04 (-2.08, -2.00) | -2.00* (-2.04, -1.96) | -2.09 (-2.19, -1.99) | -2.19 (-2.29, -2.09) | -2.14 (-2.24, -2.05) |