Table 2.

Deaths attributed to Alzheimer’s disease by occupation

Occupation	Deaths, no.	Alzheimer's deaths, no.	Alzheimer's deaths, %	Alzheimer's deaths, adjusted % (95% CI)	Adjusted odds ratio (95% CI)	P value
Ambulance drivers	1348	10	0.7	0.91 (0.35 to 1.48)	0.50 (0.27 to 0.93)	0.03
Taxi drivers and chauffeurs	16 658	171	1.0	1.03 (0.87 to 1.18)	0.56 (0.48 to 0.66)	<0.01
Bus drivers	43 295	1345	3.11	1.65 (1.56 to 1.74)	0.91 (0.85 to 0.97)	0.01
Chief executives	54 873	2251	4.10	1.82 (1.74 to 1.90)	1 (reference)
Ship captains	4199	117	2.79	2.12 (1.73 to 2.50)	1.17 (0.97 to 1.41)	0.11
Aircraft pilots	8465	387	4.57	2.34 (2.11 to 2.58)	1.30 (1.16 to 1.45)	<0.01

Risk adjusted percentages and mortality odds ratios were adjusted for age at death, sex, race, ethnic group, and educational attainment using logistic regression. Adjusted odds ratios were calculated using chief executives (US Census Bureau occupation code 0010) as an arbitrary reference group.