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Table 2 Sleep characteristics of participants with asthma, allergic rhinitis and eczema, column %

From: Associations of sleep characteristics with atopic disease: a cross-sectional study among Chinese adolescents

Characteristics (N) Asthma Allergic rhinitis Eczema
% OR (95% CI) p p* % OR (95% CI) p p* % OR (95% CI) p p*
Sleep problem             
 Difficulty in falling asleep             
  Yes (2910) 55.9 0.92 (0.71–1.20) 0.55 0.84 56.6 0.85 (0.71–1.01) 0.07 0.12 63.4 1.19 (0.98–1.46) 0.09 0.18
  No (2022) 44.1 Ref.    43.4 Ref.    36.6 Ref.   
 Difficulty in maintaining sleep             
  Yes (3342) 69.8 1.23 (0.93–1.63) 0.14 0.35 73.4 1.36 (1.12–1.65) 0.002 0.008 75.8 1.73 (1.38–2.17) < 0.001 < 0.001
  No (1590) 30.2 Ref.    26.6 Ref.    24.2 Ref.   
 Difficulty in reinitializing sleep             
  Yes (2117) 44.7 1.08 (0.83–1.40) 0.56 0.84 45.6 1.19 (1.00–1.42) 0.06 0.12 51.9 1.62 (1.33–1.97) < 0.001 < 0.001
  No (2815) 55.3 Ref.    54.4 Ref.    48.1 Ref.   
 Difficulty in returning to wakefulness             
  Yes (4341) 86.1 0.89 (0.62–1.28) 0.54 0.84 80.4 1.20 (0.92–1.57) 0.19 0.26 90.0 1.44 (1.04–1.98) 0.03 0.04
  No (591) 13.9 Ref.    11.6 Ref.    10.0 Ref.   
 Sleep-disordered breathing             
  Yes (694) 22.6 1.93 (1.38–2.70) < 0.001 < 0.001 20.4 1.96 (1.55–2.48)  < 0.001  < 0.001 17.4 1.67 (1.24–2.13) < 0.001 < 0.001
  No (4238) 77.4 Ref.    79.6 Ref.    82.6 Ref.   
 Disorders of arousal             
  Yes (1271) 25.9 1.07 (0.79–1.44) 0.67 0.92 28.3 1.21 (0.99–1.48) 0.06 0.12 33.7 1.60 (1.30–1.98) < 0.001 < 0.001
  No (3661) 74.1 Ref.    71.7 Ref.    66.3 Ref.   
Sleep hygiene             
 Sleep physiology             
  Bad (1171) 28.9 1.65 (1.24–2.20) 0.001 0.008 28.2 1.40 (1.14–1.72) 0.001 0.008 31.5 1.69 (1.36–2.10) < 0.001 < 0.001
  Good (3701) 71.1 Ref.    71.8 Ref.    68.5 Ref.   
 Sleep cognition             
  Bad (994) 24.4 1.43 (1.05–1.95) 0.02 0.11 22.5 1.20 (0.96–1.50) 0.11 0.16 28.1 1.81 (1.44–2.27) < 0.001 < 0.001
  Good (3822) 75.6 Ref.    77.5 Ref.    71.9 Ref.   
 Sleep emotion             
  Bad (1018) 23.8 1.23 (0.89–1.69) 0.21 0.45 24.5 1.40 (1.13–1.73) 0.002 0.008 27.9 1.79 (1.43–2.24)  < 0.001  < 0.001
  Good (3890) 76.2 Ref.    75.5 Ref.    72.1 Ref.   
 Sleep environment             
  Bad (914) 21.1 1.39 (1.01–1.91) 0.04 0.13 20.5 1.26 (1.00–1.57) 0.05 0.12 24.8 1.48 (1.16–1.88) 0.001 0.002
  Good (3993) 78.9 Ref.    79.5 Ref.    75.2 Ref.   
 Sleep stability             
 Bad (1008) 25.1 1.41 (1.04–1.91) 0.03 0.11 22.3 1.21 (0.98–1.51) 0.08 0.14 24.8 1.46 (1.15–1.84) 0.002 0.003
 Good (3796) 74.9 Ref.    77.7 Ref.    75.2 Ref.   
Sleep duration             
 Nighttime sleep duration in weekday             
  < 8 h/day (2466) 50.3 0.96 (0.57–1.61) 0.87 0.94 50.8 0.96 (0.67–1.37) 0.82 0.88 54.2 1.40 (0.91–2.16) 0.13 0.14
  8–9 h/day (2060) 43.1 0.96 (0.57–1.63) 0.89 0.94 42.5 0.92 (0.65–1.32) 0.66 0.77 40.4 1.12 (0.73–1.74) 0.60 0.64
  > 9 h/day (307) 6.5 Ref.    6.7 Ref.    5,4 Ref.   
 Nighttime sleep duration on weekend             
  < 8 h/day (468) 9.4 1.05 (0.66–1.67) 0.84 0.94 9.6 1.00 (0.72–1.38) 1.00 1.00 11.3 1.44 (1.04–1.99) 0.03 0.04
  8–9 h/day (1970) 41.0 0.99 (0.75–1.30) 0.94 0.94 40.7 0.94 (0.78–1.13) 0.49 0.61 40.5 1.03 (0.83–1.27) 0.79 0.79
  > 9 h/day (2369) 49.6 Ref.    49.6 Ref.    48.1 Ref.   
  1. aStatistically significant results (p < 0.05) are in italics
  2. *p value corrected