Objective   To explore the relationship between life style and blood pressure.

  Methods   To investigate males aged 45-55 in five workshops of a Chongqing plant.

  Results   Mean age was 51, and mean SBP and DBP were 120.21 mmHg(15.99 kPa) and 79.89 mmHg(10.63 kPa).Prevalence of hypertension was 20.3%;prevalence of hypercholesterolemia was 16.7%;rate of overweight(BMI≥25 kg/m²) was 23.4%.SBP and DBP were positively associated positively with BMI(partial correlation coefficient: 0.33 and 0.41 P < 0.01).Logistic regression analysis indicated that relative risks(95% CI) of overweight for the risk of HT was 4.92(2.43-9.95).Sodium excretion of 24 hours showed a weak positive correlation with blood pressure(r=0.23, r=0.22, P0.05).Means of sodium/potassium ratio was 6.77, and the percent of sodium/potassium ratio higher than recommendation(ratio < 3) was 98.55%.Males with higher educational level(receiving education year ≥10 years) had lower blood pressure, lower sodium excretion, and lower ratio of sodium/potassium.

  Conclusion   Overweight and higher dieted sodium was the risk factor for prevalence of hypertension.Education played an important role in public health for controlling high BP in Chinese population.