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

Table 2 Crude prevalence and multivariate associations: BMI, food intake, physical activity, and perception of healthy eating at work by hours worked per week in transit workers

	Hours worked per week				Models, p¹
					1	2
	Total	<40 (ref) ²	40-49	≥50	p	p
N		221	785	80
BMI (kg/m²) ³ (SD)	32.3 (7.3)	32.2 (8.5)	32.2 (6.8)	34.4 (8.9)*
Food Frequency
Past month, ≥0.5 servings/day, %
-Sweets	56.4	52.0	57.2	60.0	.57	.47
-Salty snacks	40.1	33.5	41.3	47.5	.04	.08
-SSB	38.1	37.6	37.7	43.8	.49	.23
Past month, ≥ 2 servings/day, %
-Fruits and Vegetables	43.8	43.4	43.7	46.2	.97	.87
Past month, ≥ 1-3 times/month, %
-Fast food	77.1	77.3	77.5	72.5	.74	.81
Past month use of vending machines, ≥ 3-4 times/week, %
-Cold Beverage	33.7	26.3	34.8*	43.0*	.005	.01
-Hot Beverage	31.7	27.4	31.7	43.0	.12	.07
-Snack	31.5	25.1	32.0	43.8*	.01	.009
Past month use of vending machines, ≥ 2-3 times/mo, %
-Cold Food	29.5	24.1	29.9*	40.0*	.02	.004
Physical Activity
Moderate/Strenuous LTPA (% reporting ≥3 times/wk)	57.8	58.5	57.6	57.7	.79	.66
Mild LTPA (% reporting ≥3 times/wk)	50.2	45.5	51.9	46.2	.39	.65
Sweat Frequency (% reporting sometimes/often within past 7 days)	75.5	75.1	75.3	78.5	.80	.70
Perception of Work Environment
Easy to eat healthy at work (%Disagree/strongly)	64.7	62.3	65.7	62.5	.49	.19
Hard to get F&V at work (%Agree/strongly)	52.2	49.5	52.8	54.4	.66	.19

Model 1 is adjusted for gender, age and race
Model 2 is adjusted for gender, age, race, education, job position, years worked at MT, and marital status.
¹p-values represent significance of the overall work hour variable from multivariate logistic regression analyses (df = 2)
²Reference category is < 40 hours per week
³Multiple linear regression analysis with work hours coded as dummy variables (<40 v. 40-49; <40 v. ≥50)
*Denotes significant differences (p < 0.05) in prevalence from reference category (< 40 hours per week) in fully adjusted model (Model 2)

ISSN: 1479-5868