Skip to main content

Table 2 The percentage of time sitting, in prolonged sitting, and the number of sitting breaks in each period

From: Exploring when and how adolescents sit: cross-sectional analysis of activPAL-measured patterns of daily sitting time, bouts and breaks

  % of period sitting % in prolonged sitting (per hour) Number of sitting breaks (per hour)
Weekdaya Weekend dayb p for day Weekdaya Weekend dayb p for day Weekdaya Weekend dayb p for day
Mean %/period (95%CI) Mean %/period (95%CI)   Mean %/hour (95%CI) Mean %/hour (95%CI)   Mean #/hr. (95%CI) Mean #/hr. (95%CI)  
Early morning 63.59 ¥ (61.92, 65.26) 70.46 (65.37, 75.54) < 0.01 18.55 (17.55, 19.51) 19.71 (16.72, 22.70) 0.13 1.75 (1.65, 1.85) 1.62 (1.34, 1.91) 0.08
Mid-morning 74.58 ¥ (72.95, 76.21) 66.59 (62.72, 70.20) < 0.01 23.98 (22.76, 25.19) 25.89 (23.27, 28.51) 0.64 2.54* (2.36, 2.71) 2.51 (2.26, 2.78) 0.29
Morning break 45.43 ¥* (43.24, 47.62) 62.32 (58.13, 66.51) < 0.01 33.78 ¥* (30.28, 42.90) 23.65 (17.40, 29.91) < 0.01 3.12 ¥* (2.91, 3.33) 2.74 (2.36, 3.11) 0.04
Late-morning 74.04 ¥ (72.50, 75.58) 63.57 (60.49, 66.65) < 0.01 26.14 (24.81, 27.46) 25.92 (23.69, 28.15) 0.82 2.94* (2.75, 3.12) 3.22 (2.94, 3.51) 0.13
Lunch 48.75 ¥* (46.41, 51.08) 61.80 (58.34, 65.26) < 0.01 24.65* (22.54, 26.77) 25.28 (22.00, 28.55) 0.95 3.20 (3.01, 3.39) 3.25 (2.96, 3.55) 0.74
Early afternoon 73.18 ¥* (71.34, 74.83) 64.38 (61.20, 67.56) < 0.01 26.73* (25.39, 28.08) 25.93 (22.50, 28.96) 0.54 3.16* (2.96, 3.36) 3.32 (3.06, 3.58) 0.64
Late afternoon 62.89 ¥ (61.25, 64.53) 66.15 (63.54, 68.75) < 0.01 23.85 ¥ (22.79, 24.91) 25.71 (23.96, 27.47) 0.049 3.33 (3.17, 3.48) 3.27 (3.02, 3.52) 0.29
Evening 72.58 (70.81, 74.35) 73.92 (71.71, 76.14) 0.41 28.93 (27.79, 30.06) 28.04 (26.33, 29.74) 0.21 2.91 (2.77, 3.06) 3.19 (2.98, 3.40) 0.09
Class time 74.61* (73.34, 75.90) N/A N/A 25.01 (24.05, 25.97) N/A N/A 2.87* (2.71, 3.04) N/A N/A
School time 69.5* (68.25, 70.79) N/A N/A 25.34* (24.46, 26.22) N/A N/A 2.94* (2.79, 3.09) N/A N/A
Out-of-school time 64.94 (63.59, 66.30) N/A N/A 21.96 (21.27, 22.66) N/A N/A 2.49* (2.39, 2.59) N/A N/A
  1. Differences between weekdays and weekend days examined by t-test, ¥indicates significant differences between day type. (*) indicates significant sex differences, see Figs. 1, 2, 3 and Additional file 1: Table S1, Additional file 2: Table S2, Additional file 3: Table S3. aIncludes only those with 8 h of wear time on at least 3 weekdays; bIncludes only those with 7 h of wear time on at least one weekend day. This study was conducted in Melbourne, Australia, between August 2014–December 2015