Table 1. Lipid profiles of active workers aged 65 and under, JMS Cohort Study, 1992-1995.

	n	Mean	SD	95% CI
Men
Total cholesterol (mg/dl)	3293	185.6	34.3	(184.4, 186.8)
HDL cholesterol (mg/dl)	3294	48.8	13.3	(48.4, 49.3)
Lipoprotein (a) (mg/dl)	2834	18.5	17.6	(17.9, 19.2)
Total/HDL cholesterol ratio	3293	4.06	1.33	(4.02, 4.11)
Women
Total cholesterol (mg/dl)	3560	192.6	34.3	(191.5, 193.7)
HDL cholesterol (mg/dl)	3560	53.0	12.5	(52.6, 53.4)
Lipoprotein (a) (mg/dl)	3204	21.1	20.0	(20.4, 21.8)
Total/HDL cholesterol ratio	3560	3.82	1.11	(3.79, 3.86)

SD: standard deviation

CI: confidence interval.