Table III.

Outcome 4: Logistic regression analysis modeling personal, work exposure, and psychosocial predictors of functional impairment due to upper extremity symptoms among workers employed for 6 months in a new job (N=801)^*

Independent variable	OR	95% CI
Personal risk factors
Age (per 10yr increment)	1.20	1.00 – 1.40
Caucasian race	1.51	0.96 – 2.39
Female gender	1.53	0.97 – 2.41
Body mass index	1.01	0.98 – 1.04
Mild baseline UE symptoms†	1.79	1.08 – 2.97
Severe baseline UE symptoms††	4.73	3.00 – 7.45
Physical work exposures ±
Wrist bending	1.76	1.17 – 2.66
Forceful gripping	1.31	0.82 – 2.11
Lifting > 2lbs	1.21	0.78 – 1.88
Vibrating tools	0.94	0.56 – 1.57
Psychosocial variables
Social support	0.37	0.21 – 0.63
Job decision latitude	1.26	0.75 – 2.10
Job insecurity	1.26	0.77 – 2.07

^†Subjects scored symptoms between a 0 and 4 on a 0-10 symptom severity scale.

^††Subjects scored symptoms ≥5 on a 0-10 symptom severity scale.

^*As a result of missing data points, 801 of 962 (83%) subjects were included in the analysis.

^**Regression models used to estimate ORs included all variables listed in the tables.

^±All variables within this group refer to ≥ 4 hours compared to < 4 hours as the reference group.