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Table 1 Sociodemographic, behavioral and occupational characteristics of workers according to work shift in southern Brazil (n: 200)

From: Night shift work, short sleep and obesity

Variables

Total

Day (n = 94)

Night (n = 106)

p

Age (years) (n = 200)

43.2 ± 9.3

40.4 ± 9.2

45.6 ± 8.6

< 0.001*

Age < 50 years

140 (70)

75 (80)

65 (61.3)

0.008##

Age ≥ 50 years

60 (30)

19 (20)

41 (38.7)

 

Gender (n = 200)

0.958##

 Female

139 (69.5)

66 (70.2)

73 (68.9)

 

 Male

61 (30.5)

28 (29.8)

33 (31.1)

 

Race (n = 200)

 White

155 (77.5)

74 (78.7)

81 (76.4)

0.825##

 Non white

45 (22.5)

20 (21.3)

25 (23.6)

 

Life partner (n = 200)

0.106##

 Yes

89 (45.5)

48 (51.1)

41 (38.6)

 

 No

111 (55.5)

46 (48.9)

65 (61.4)

 

Children (n = 124)

0.318##

 Yes

92 (73.6)

39 (68.4)

53 (77.9)

 

 No

33 (26.4)

18 (31.6)

15 (22.1)

 

Level of schooling (n = 200), years

0.668#

 Up to the age of 8

11 (5.5)

5 (5.3)

6 (5.6)

 

 From 8 to 11

123 (61.5)

55 (58.5)

68 (64.2)

 

 Above 11

66 (33.0)

34 (36.2)

32 (30.2)

 

Smoking (n = 117)

1.000¥

 Smoker

11 (9.4)

5 (10.0)

6 (9.0)

 

 Non smoker

106 (90.6)

45 (90.0)

61 (91.0)

 

Alcohol consumption (n = 118)

0.017##

 Yes

58 (49.2)

33 (62.3)

25 (38.5)

 

 No

60 (50.8)

20 (37.7)

40 (61.5)

 

Treatment for SAH

 

7 (12.5)

14 (20.6)

0.340##

Treatment for diabetes

 

2 (3.6)

6 (8.8)

0.292¥

Treatment for dyslipidemia

 

5 (8.9)

4 (5.9)

0.730¥

IPAQ (n = 112)

0.638#

 Sedentary

14 (12.5)

5 (10.2)

9 (14.3)

 

 Irregularly active

14 (12.5)

7 (14.3)

7 (11.1)

 

 Active

61 (54.5)

29 (59.2)

32 (50.8)

 

 Very active

23 (20.5)

8 (16.3)

15 (23.8)

 

Function (n = 200)

< 0.001#

 Administrative

32 (16.1)

22 (23.7)

10 (9.4)

 

 Health professionals

125 (62.8)

44 (46.2)

82 (77.4)

 

 Support

32 (16.1)

23 (24.7)

9 (8.5)

 

 Maintenance

10 (5.0)

5 (5.4)

5 (4.7)

 

Works elsewhere (n = 124)

0.340#

 Yes

15 (12.1)

9 (16.1)

6 (8.8)

 

 No

109 (87.9)

47 (83.9)

62 (91.2)

 

Income (n = 115), MW

0.001#

 Up to 4

31 (27.0)

23 (44.2)

8 (12.7)

 

 From 4.1 to 5

46 (40.0)

14 (26.9)

32 (50.8)

 

 Above 5

38 (33.0)

15 (28.8)

23 (36.5)

 

Time at hospital (years) (n = 200)

11.1 (4.8–17.5)

6.2 (2.5–12.5)

15.6 (9.3–20.0)

< 0.001**

Time on shift (years) (n = 200)

5.3 (1.4–13.8)

3.8 (1.3–11.9)

7.2 (1.6–15.7)

0.076**

  1. Quantifiable variables with symmetrical distribution described by mean ± deviation. Quantitative variables with asymmetrical distribution described by the median (P25–P75). Categorical variables described by frequencies (percentages)
  2. MW minimum wage
  3. * Student test; ** Mann–Whitney test
  4. #Pearson’s Chi Square test, ## Pearson’s Chi Square test with continuity correction
  5. ¥Exact Fisher test