Adverse trends of cardiovascular risk factors among low risk populations (1983-1994) - a cohort study of workers and farmers in Guangzhou, China

Table 5 Factors associated with serum total cholesterol and changes in serum total cholesterol by gender and occupation among cohort populations in Guangzhou, China, 1983-1994

	Males				Females
	Workers		Farmers		Workers		Farmers
	β	SE	β	SE	β	SE	β	SE
Time (10 years)	5.4**	1.4	19.4**	1.6	2.0	1.5	13.2**	1.2
Age (year)	0.8**	0.1	-0.1	0.1	1.8**	0.1	1.2**	0.1
Education (level^a)	3.4**	1.0	1.4	1.6	0.9	0.8	4.3**	1.3
Body mass index (kg/m²)	1.4**	0.4	1.4**	0.4	1.2**	0.3	1.5**	0.4
Change in body mass index (kg/m²)	2.3**	0.5	3.1**	0.6	1.3**	0.4	1.8**	0.3
Cigarettes per day (10/d)	-0.2	0.8	0.6	0.6	^b		^b
Change in cigarettes per day (10/d)	-0.6	0.6	1.0*	0.5	^b		^b
Alcohol intake (13.7 g/d)	1.3**	0.5	0.9**	0.2	1.8	2.2	-0.1	0.9
Change in alcohol intake (13.7 g/d)	0.6*	0.3	0.4*	0.2	0.9	1.1	0.7	1.1

**P < 0.01; *P < 0.05; ^aFour education levels: never attended school, primary school, middle school, and high school or higher; ^bNot included in the model because few females smoked; and ^c13.7 g/d is equivalent to 1 drink/d

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