TABLE 2.

Incidence Rate ratios (IRR) With 95% Confidence Interval (CI) for Incident Dementia Among the Participants According to their Level of Social Relations at Work in the Copenhagen Male Study

		Univariate	Multivariate
Social Relations at Work	No. of Participants With Dementia N = 245	IRR (95% CI)	Model 1, IRR (95% CI)	Model 2, IRR (95% CI)	Model 3, IRR (95% CI)
Possibilities to be in contact with coworkers
Good possibilities	171	1	1	1	1
Some possibilities	45	1.07 (0.79–1.49)	1.02 (0.73–1.42)	0.98 (0.69–1.38)	1.09 (0.77–1.54)
Limited possibilities	7	2.16 (1.11–4.20)	3.05 (1.44–6.50)	2.49 (1.14–5.44)	2.74 (1.23–6.11)
I work alone	22	1.50 (1.00–2.25)	1.39 (0.85–2.25)	1.17 (0.71–1.92)	1.25 (0.75–2.10)
Get along with coworkers
Yes, absolutely/yes, most of the time	236	1	1	1	1
Neither yes nor no/no, absolutely not	9	1.81 (0.94–3.50)	1.54 (0.71–3.30)	1.64 (0.76–3.54)	1.52 (0.70–3.31)
Satisfaction with supervisor
Very satisfied/fairly satisfied/	192	1	1	1	1
Neither satisfied nor dissatisfied/dissatisfied/very dissatisfied	53	0.92 (0.69–124)	0.91 (0.67–1.25)	0.83 (0.60–1.15)	0.79 (0.57–1.10)

Model 1: Adjusted for current age in each calendar year, time since exposure measurement, calendar year and all three measures of social relations at work.

Model 2: Model 1+ participants’ marital status, children living at home, educational attainment, work-related factors including job control, work pace, and monotonous work.

Model 3: Model 2+ CVD before baseline, CVD risk factors (average alcohol consumption per week, smoking habits, leisure time physical activity, BMI, and Systolic blood pressure), and sleep problems.