Table 2.

Associations Between Work Complexity and Odds of Incident Cognitive Impairment

	Model 1			Model 2
	OR	95% CI	p Value	OR	95% CI	p Value
Overall complexity
1970 U.S. Census	0.74	0.59–0.93	.008	0.76	0.59–0.97	.026
O*Net 2001	0.78	0.63–0.96	.021	0.80	0.64–1.01	.063
Complexity with data
1970 U.S. Census	0.80	0.65–0.99	.038	0.84	0.66–1.05	.124
1977 DOT	0.85	0.70–1.04	.114	0.90	0.72–1.11	.311
2000 DOT	0.78	0.63–0.96	.017	0.80	0.64–1.00	.053
Complexity with people
1970 U.S. Census	0.86	0.69–1.05	.140	0.90	0.72–1.13	.355
1977 DOT	0.86	0.70–1.06	.164	0.90	0.73–1.12	.360
2000 DOT	0.81	0.66–1.00	.054	0.84	0.68–1.06	.139

Note: OR = odds ratio; CI = confident interval; DOT = measurement based on the Dictionary of Occupational Titles; O*Net = measurement based on the Occupational Information Network (O*Net). Model 1 is adjusted for age, gender, childhood economic hardship, current money problems, self-rated health, and depressive symptomology; Model 2 is also adjusted for years of education.