Table 6

Risk of dementia with parkinsonism among men according to the occupational category. Cox model with delayed entry. PAQUID 1988–97

Dementia with parkinsonism		Model 1^6-151				Model 2^6-151			Model 3^6-151		Model 4^6-151
Dementia with parkinsonism		RR	95% CI			RR	95% CI		RR	95% CI	RR	95% CI
Occupational category:
Professionals/managerials and other employees	1	—		1	—		1	—	1	—
Farmers	2.37	0.33–16.91		1.54	0.19–12.62		1.36	0.17–10.98	0.71	0.07–7.41
Domestic service employees	21.18^6-150	1.85–243.2		18.23^6-150	1.54–215.5		13.94^6-150	1.17–166.1	26.23^6-150	1.95–352.4
Blue collar workers	3.24	0.54–19.42		2.49	0.39–15.96		2.46	0.39–15.65	1.64	0.23–11.56
Craftsmen/shopkeepers	2.16	0.30–15.41		1.92	0.27–13.90		1.85	0.26–13.42	1.12	0.14–9.07
Log likelihood ratio statistics^6-152	p=0.319			p=0.418			p=0.474		p=0.314

↵6-151 Model 1=without adjustment variables; model 2=education; model 3=education, tobacco and wine consumption; model 4=education, tobacco and wine consumption, income, vascular factors.
↵6-152 Testing the global effect of occupation.
↵6-150 p<0.05,
6-160 p<0.01.