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Table 4 Factors associated with systolic blood pressure and changes in systolic blood pressure by gender and occupation among cohort populations in Guangzhou, China, 1983-1994

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

  Males Females
  Workers Farmers Workers Farmers
  β SE β SE β SE β SE
Time (10 years) 3.0** 0.7 5.5** 0.7 4.1** 0.7 2.7** 0.5
Age (year) 0.4** 0.1 0.2** 0.1 0.7** 0.1 0.5** 0.1
Education (levela) -0.7* 0.4 0.2 0.6 -0.2 0.4 -0.01 0.5
Antihypertensive medication use 13.8** 1.9 15.9** 3.1 13.1** 1.7 17.3** 3.5
Body mass index (kg/m2) 1.5** 0.1 1.0** 0.2 1.5** 0.1 0.6** 0.1
Change in body mass index (kg/m2) 1.5** 0.2 1.5** 0.3 1.1** 0.2 1.0** 0.1
Cigarettes per day (10/d) -1.6** 0.3 -1.2** 0.2 b   b  
Change in cigarettes per day (10/d) 0.7* 0.4 0.8* 0.3 b   b  
Alcohol intake (13.7 g/dc) 0.5** 0.2 0.3** 0.1 -0.7 0.7 -1.0 0.4
Change in alcohol intake (13.7 g/dc) -0.3 0.2 -0.4** 0.1 0.2 1.0 0.9 0.5
  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