Table III.

Multivariable associations between work outcomes and exposure to work factors (n=929, Prevalence Ratio (PR) calculated using Poisson multiple regression. All variables entered into model; model also includes residential vs. commercial construction as primary work over past year.

	Prescribed medication for pain		Missed days due to work-related injury		Missed days due to any injury or pain		Low work ability		Low health related productivity
Variable	PR	CI	PR	CI	PR	CI	PR	CI	PR	CI
Late term (senior) apprentice	1.32	(0.89 – 1.96)	1.53	(0.96 – 2.43)	1.39	(1.04 – 1.87)	0.50	(0.32 – 0.76)	1.21	(0.95 – 1.54)
Formal work breaks	0.91	(0.58 – 1.42)	1.15	(0.64 – 2.05)	1.05	(0.74 – 1.49)	0.70	(0.42 – 1.15)	0.90	(0.68 – 1.17)
Low supervisor support	1.19	(0.78 – 1.81)	1.21	(0.76 – 1.91)	0.97	(0.71 – 1.31)	1.14	(0.70 – 1.87)	1.11	(0.86 – 1.43)
Low coworker support	1.26	(0.86 – 1.84)	1.10	(0.74 – 1.64)	1.39	(1.06 – 1.82)	1.46	(0.93 – 2.29)	1.37	(1.08 – 1.75)
Precarious work	1.37	(0.93 – 2.02)	1.54	(0.99 – 2.40)	1.20	(0.90 – 1.60)	0.88	(0.53 – 1.45)	0.98	(0.76 – 1.25)
Mandatory overtime	0.42	(0.19 – 1.10)	0.62	(0.24 – 1.60)	0.93	(0.57 – 1.53)	0.66	(0.25 – 1.76)	1.39	(1.00 – 1.94)
High job strain	1.68	(1.06 – 2.66)	1.75	(1.01 – 3.02)	1.52	(1.09 – 2.12)	1.46	(0.85 – 2.50)	1.35	(0.99 – 1.82)
Low job satisfaction	0.96	(0.64 – 1.43)	1.01	(0.66 – 1.56)	1.11	(0.84 – 1.46)	1.53	(0.95 – 2.46)	1.68	(1.32 – 2.15)