Table 3. Associations between job characteristics and serum lipid profiles, active workers aged 65 and under, JMS Cohort Study, 1992-1995.

	Psychological demands				Job control				Job strain
	Low	Middle	High	p	High	Middle	Low	p	Low	Middle	High	p
Men
n	959	971	1274		982	1035	1205		987	1050	1133
Total cholesterol (mg/dl)	185.4	184.9	188.7	0.048	188.6	186.7	185.0	0.140	185.9	188.0	185.9	0.388
HDL cholesterol (mg/dl)	48.6	48.6	48.0	0.451	48.2	47.9	48.7	0.402	48.2	48.2	48.5	0.780
Lipoprotein (a) (mg/dl)	19.6	17.3	18.3	0.148	17.1	19.3	18.8	0.283	18.3	17.9	18.9	0.443
Total/HDL cholesterol ratio	4.07	4.06	4.20	0.020	4.17	4.17	4.06	0.102	4.11	4.19	4.09	0.300
Women
n	1030	1087	1276		1194	1208	1022		1084	1085	1172
Total cholesterol (mg/dl)	192.7	192.9	193.3	0.934	193.6	191.7	194.2	0.275	192.8	192.5	193.6	0.789
HDL cholesterol (mg/dl)	52.6	52.8	52.6	0.949	52.5	52.7	52.8	0.886	52.5	52.2	53.1	0.363
Lipoprotein (a) (mg/dl)	20.0	21.1	21.0	0.106	20.3	21.5	20.6	0.421	20.9	20.2	21.2	0.381
Total/HDL cholesterol ratio	3.86	3.85	3.87	0.963	3.88	3.83	3.89	0.475	3.87	3.87	3.86	0.888

Due to selective missing values, the total number of subjects included in multivariate analysis was somewhat lower.

Analysis of covariance was performed adjusting for age, marital status, educational attainment, type of job, employment status, smoking hal alcohol intake, dietary patterns (vegetable pattern, meat pattern, and western pattern), physical activity index, and BMI.

In women, menopausal status was also adjusted for.