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Table 2 Time (min/day) spent in all super domains during day-shift, night-shift and non-work days [MARCA data, mean (standard deviation)]

From: A hard day’s night: time use in shift workers

Super Domain Workplace 1 Workplace 2
Day shift
(n = 8)
Night Shift
(n = 9)
Non-work day
(n = 9)
Day shift
(n = 25)
Night Shift
(n = 22)
Non-work day
(n = 26)
Sleep 393.5 (56.32) 439.9 (72.27) 505.4 (53.00) 387.3 (61.40) 493.3 (92.86)☀☼ 528.6 (91.33)
Quiet time 80.0 (133.15) # 42.5 (40.65) # 23.2 (27.97) 14.0 (32.71)# 15.8 (23.17) 28.6 (46.01)
Screen time 255.2 (205.31) 292.0 (111.54)# 181.6 (101.20) 225.2 (164.08) 186.7 (121.62)#☼ 274.6 (147.71)
Self-care 97.1 (31.96) # 92.8 (21.62)# 119.9 (31.20) 154.0 (40.06)# 123.8 (28.88)#☀ 128.6 (40.88)
Chores 69.9 (46.51) 130.4 (86.35) 189.7 (109.90) 107.3 (110.24) 140.8 (125.77) 260.0 (121.40)
Work / study 146.1 (107.44) 106.2 (59.01) 52.0 (73.67) 283.5 (184.42) 234.0 (151.96)# 25.8 (46.63)
Social 104.2 (78.40) 67.0 (68.8) 160.2 (105.54)# 75.6 (64.23) 88.3 (86.75) 58.1 (82.60)#
Cultural 0 (0) 0 (0) 0.3 (0.83) 0 (0) 0 (0) 0 (0)
Physical Activity 17.4 (17.91) 14.7 (26.57) 44.1 (65.40) 8.0 (14.82) 18.6 (33.08) 22.9 (36.51)
  1. #Difference between workplace 1 and workplace 2, p < 0.05 using independent t-tests
  2. Different from non-work days, p < 0.008; Different from day shift days, p < 0.05; Different from night shift days; using paired t-test; Workplace 1
  3. Different from non-work days, p < 0.05; Different from day shift days, p < 0.05; Different from night shift days; using paired t-test; Workplace 2