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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