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Table 3 Crude prevalence and multivariate associations: BMI, food intake, physical activity, and perception of healthy eating at work by hours worked per week stratified by gender

From: Work hours, weight status, and weight-related behaviors: a study of metro transit workers

 

Hours worked per week

 

Males

Models, p1

Females

 

Models, p1

 

<40 (ref) 2

40-49

≥50

1

2

<40 (ref) 2

40-49

≥50

1

2

n

155

633

66

  

66

152

14

  

BMI (kg/m2) 3 (SD)

31.4 (7.5)

32 (6.8

34.3 (9.1)*

  

34.1 (10.2)

32.9 (6.8)

34.9 (7.9)

  

Food Frequency

Past month, ≥ 0.5 servings/day, %

-Sweets

50.3

57.5

59.1

.56

.75

56.1

55.9

64.3

.79

.66

-Salty snacks

27.7

42.7

45.5

.005

.08

47.0

35.5

57.1

.18

.28

-SSB

36.1

39.5

39.3

.28

.25

40.9

30.3

35.7

.35

.45

Past month, ≥ 2 servings/day, %

Fruits and Vegetables

38.1

42.5

37.9

.28

.36

56.1

48.7

85.7*

.02

.04

Past month, ≥1-3 time, %

Fast food

73.4

77.5

72.7

.57

.66

86.7

77.6

71.4

.36

.25

Past month, use of vending machines, ≥ 3-4 times/wk, %

-Cold Beverage

25.8

34.7

47.7*

.005

.004

27.4

35.1

21.4

.11

.11

-Hot Beverage

28.0

34.0

46.2

.08

.06

25.8

22.1

28.6

.56

.39

-Snack4

21.9

33.2*

51.5*

<0.001

<0.001

32.8

25.5

.51

.50

Past month, use of vending machines, ≥ 2-3 times/mo, %

-Cold Food4

28.0

31.3

47.0*

.01

.001

14.5

22.8*

.07

.04

Physical Activity

          

Reporting LTPA ≥3 times/wk, %

-Mod/Strenuous

60.9

60.5

63.1

.96

.96

52.5

44.8

30.8

.29

.25

-Mild

47.7

53.6

50.8

.46

.88

40.3

44.9

23.1

.48

.45

Sweat Frequency within the past 7 days,%

-Sometimes/often

76.0

76.5

83.3

.42

.39

73.0

70.3

53.8

.36

.23

Perception of Work Environment

Easy to eat healthy at work (% Disagree/strongly)

60.4

65.0

60.6

.37

.21

66.7

68.5

71.4

.93

.81

Hard to get F&V at work (%Agree/strongly)

49.0

51.3

52.3

.66

.19

50.8

58.9

64.3

.68

.68

  1. Model 1 is adjusted for age and race
  2. Model 2 is adjusted for age, race, education, job position, years worked at MT, and marital status.
  3. 1p-values represent significance of the overall work hour variable from multivariate logistic regression analyses (df = 2)
  4. 2Reference category is <40 hours per week
  5. 3Multiple linear regression analysis with work hours coded as dummy variables (<40 v. 40-49; <40 v. ≥50)
  6. 4Reference category is < 40 hours per week; 40 - 49 and ≥50 hours per week category combined due to small number of women working ≥50 hours per week endorsing snack and cold food vending machine use
  7. *Denotes significant differences (p < 0.05) in prevalence from reference category (< 40 hours per week) in fully adjusted model (Model 2)