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Table 1 Comparison of socio-demographic characteristics between SWSD, No SWSD and non-shift group

From: Prevalence, predictors and effects of shift work sleep disorder among nurses in a Nigerian teaching hospital

Variables Shift group Non-shift group p1 p2 p3
SWSD
n = 19
No SWSD
n = 25
n = 44
Age (yrs) (Mean ± SD) 34.7 ± 4.1 35.7 ± 5.1 36.7 ± 4.8 0.980 0.425 0.399
Age group (yrs) n (%)
 26–30 3 (15.8) 4 (16.0) 3 (6.8) 0.797 0.417 0.682
 31–35 6 (31.6) 11 (44.0) 22 (50.0)
 36–40 6 (31.6) 5 (20.0) 9 (20.5)
 41–45 4 (21.1) 5 (20.0) 10 (2.7)
Gender n (%)
 Male 6 (31.6) 6 (24.0) 17 (38.6) 0.576 0.593 0.215
 Female 13 (68.4) 19 (76.0) 27 (61.4)
Ethnicity n (%)
 Yoruba 17 (89.4) 23 (8.0) 41 (93.2) 0.405 0.815 0.638
 Igbo 1 (5.3) 2 (8.0) 2 (4.5)
 Hausa 1 (5.3) 0 (0.0) 1 (2.3)
Others
 Smoking n (%) 1 (5.3) 0 (0.0) 0 (0.0) 0.432 0.302 Constant
 Alcohol n (%) 3 (15.8) 0 (0.0) 1 (2.3) 0.073 0.078 1.000
 Coffee n (%) 3 (15.8) 0 (0.0) 1 (15.8) 0.073 0.145 1.000
 Kola nut n (%) 2 (10.5) 0 (0.0) 1 (2.3) 0.181 0.443 1.000
  1. p1 SWSD vs No SWSD groups; p2 SWSD vs non-shift Groups; p3 No SWSD vs non-shift Groups
  2. BMI Body mass index, SBP Systolic blood pressure