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Table 3 Association between demographic factors and sleep disturbances (n = 420)

From: A cross-sectional study on sleep disturbances and associated factors among nurses

Variables Participants with/without sleep disturbances
Without With Without With a/b-value p
Mean (SD) n (%)   
Age (years)      4.223a .05
  ≤ 30    92 (47.7) 101 (52.3)   
  > 30    131 (57.7) 96 (42.3)   
Gender      .156a .735
 Male    54 (51.4) 51 (48.6)   
 Female    169 (53.7) 146 (46.3)
Marital status      .119a .765
 Single/divorced/widowed    88 (52.1) 81 (47.9)   
 Married    135 (53.8) 116 (46.2)
Education level      .127a .766
 Diploma/Associate    134 (53.8) 115 (46.2)   
 Bachelor’s/Graduate    89 (52.0) 82 (48.0)
Self-rated health condition      10.878a .001
 Very good/Good    176 (58.1) 127 (51.9)   
 Fair/bad/very bad    47 (40.2) 70 (59.8)
Work experience (years)      2.588a .119
  ≤ 10    142 (50.4) 140 (49.6)   
  > 10    81 (58.7) 57 (41.3)
Shift work      1.173a .309
 No    60 (57.7) 44 (42.3)   
 Yes    163 (51.6) 153 (48.4)
Perceived stress (PSS-10) 15.37 (4.25) 19.11 (3.41)    −9.98b < .001
Quality of life (SF-12)
 PCS 69.19 (20.21) 55.48 (22.81)    6.483b < .001
 MCS 63.70 (16.01) 53.83 (16.65)    6.19b < .001
  1. SD standard deviation, PSS-10 Perceived Stress Scale, SF-12 Short form, PCS Physical component domain, MCS Mental component domain
  2. aResults of chi-square test (χ2)
  3. bResults of the t-test