Table 4. Associations between work organization, sleep, non-HDL Cholesterol, and Cholesterol Ratio (adjusted for age and race/ethnicity).

			OR	95% CI	p
Model1 (non-HDL Cholesterol as outcome variable)					0.05
	Years of Driving (21 or more yrs reference)		1.00	—	—
		10 or less yrs	0.39	0.14, 1.08	0.08
		Between 11 and 20 yrs	0.82	0.26, 2.57	0.95
	Daily Work h (11 h or less, vs. more than 11 h reference)		0.54	0.21, 1.39	0.20
	Driving Miles per wk (3,000 or more miles reference)		1.00	—	—
		Less than 2,500 miles per wk	1.43	0.39, 5.23	0.59
		Between 2,500 and 2,999 miles per wk	3.16	0.90, 11.04	0.07
	Workday Sleep Duration (optimal, vs. too short or too long reference)		0.33	0.13, 0.83	0.02
	Non-Workday Sleep Duration (optimal, vs. too short or too long reference)		2.02	0.81, 5.03	0.13
	Workday Sleep Quality (good, vs. poor reference)		0.50	0.16, 1.55	0.23
	Non-Workday Sleep Quality (good, vs. poor reference)		2.06	0.48, 8.86	0.33
Model2 (Cholesterol Ratio as outcome variable)					0.04
	Years of Driving (21 or more yrs reference)		1.00	—	—
		10 or less yrs	0.29	0.11, 0.78	0.01
		Between 11 and 20 yrs	0.30	0.10, 0.88	0.03
	Compensation Type (by the mile, vs. other form of compensation reference)		0.57	0.24, 1.34	0.20
	Workday Sleep Quality (good, vs. poor reference)		2.22	0.82, 6.00	0.12
	Non-Workday Sleep Quality (good, vs. poor reference)		0.25	0.06, 0.95	0.04

¹ χ²=17.16; R²=.17 (Cox & Snell), .20 (Nagelkerke)

² χ²=11.59; R²=.12 (Cox & Snell), .13 (Nagelkerke)