Table 2

Characteristics of psychosocial work environment by occupational categories among men with myocardial infarction and control subjects

Occupational categoriesJob demandsJob controlJob strain†
MeanMeanMean
(SEM*)(SEM*)(SEM*)
*SEM, standard error of mean; †job strain; ratio of job demands to control.
Men with MI
1 Legislators, senior officials, and managers11.5 (0.4)15.8 (0.5)0.73 (0.03)
2 Professionals10.3 (0.5)14.2 (0.6)0.73 (0.03)
3 Technicians and associate professionals9.8 (0.4)14.0 (0.6)0.71 (0.02)
4&5 Clerks, service, market sales workers10.3 (1.3)10.7 (1.5)0.98 (0.09)
7 Craft and related trades workers10.3 (0.2)12.6 (0.3)0.84 (0.03)
8 Plant and machine operators and assemblers10.9 (0.3)12.4 (0.3)0.89 (0.02)
9 Elementary occupations9.6 (1.6)10.8 (0.8)0.90 (1.16)
p for trend0.05< 0.00010.14
Controls
1 Legislators, senior officials, and managers12.5 (0.4)17.8 (0.7)0.73 (0.04)
2 Professionals11.1 (0.3)15.4 (0.5)0.76 (0.04)
3 Technicians and associate professionals10.4 (0.5)14.8 (0.6)0.72 (0.05)
4&5 Clerks, service, market sales workers11.1 (0.6)13.5 (1.4)0.89 (0.10)
7 Craft and related trades workers11.4 (0.2)13.7 (0.3)0.87 (0.02)
8 Plant and machine operators and assemblers10.9 (0.2)13.3 (0.3)0.84 (0.02)
9 Elementary occupations9.5 (0.8)9.7 (0.8)1.00 (0.08)
p for trend0.05< 0.00010.05