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Table 3 Comparison of anthropometric and biophysical profiles between SWSD, No SWSD and non-shift Groups

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

BMI(kg/m2) (Mean ± SD)

24.8 ± 2.6

24.3 ± 3.9

23.8 ± 2.6

0.630

0.191

0.571

 • Normal weightn (%)

13 (68.4)

15 (60.0)

34 (77.3)

0.565

0.459

0.128

 • Overweightn (%)

6 (31.6)

10 (40.0)

10 (22.7)

SBP (mmHg)(Mean ± SD)

122.1 ± 13.2

113.2 ± 9.9

118.9 ± 12.8

0.014

0.364

0.060

 • Normal n (%)

17 (89.5)

25 (100.0)

41 (93.2)

0.181F

0.633F

0.549F

 • High n (%)

2 (10.5)

0 (0.0)

3 (6.8)

DBP (mmHg) (Mean ± SD)

74.0 ± 7.9

68.4 ± 6.2

71.1 ± 7.6

0.012

0.165

0.143

 • Normal n (%)

18 (94.7)

25 (100.0)

43 (97.7)

0.432*

0.516*

1.000*

 • High n (%)

1 (5.3)

0 (0.0)

1 (2.3)

PP(mmHg) (Mean ± SD)

48.1 ± 10.1

44.8 ± 7.1

47.8 ± 10.1

0.210

0.913

0.073

MABP (mmHg) (Mean ± SD)

90.0 ± 8.7

83.3 ± 6.9

87.0 ± 8.6

0.009

0.178

0.078

Temperature (°C) (Mean ± SD)

38.0 ± 0.5

37.2 ± 0.7

36.8 ± 0.2

< 0.001

< 0.001

0.001

Cortisol (ng/ml) (Mean ± SD)

15.1 ± 3.2

12.8 ± 2.1

12.3 ± 2.0

0.027

< 0.004

0.735

  1. p1 SWSD vs No SWSD groups; p2 SWSD vs non-shift Groups; p3 No SWSD vs non-shift Groups
  2. SWSD Shift Work Sleep Disorder, BMI Body mass index, SBP Systolic blood pressure
  3. FFisher’s exact
  4. *Stands for liklihood ratio
  5. Bold enteries are statistically significant