Investigation of prevalence rate of hypertension in 4 000 cases civil pilots and analysis of the risk factors

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Objective To investigate the prevalence rate of hypertension and to explore the risk factors, so as to provide reference for early prevention and treatment of hypertension in civil pilots. Methods The general information questionnaire, results of physical examination and laboratory examination of 4 000 cases of civil pilots were retrospectively reviewed. They were divided into hypertension and normal blood pressure groups according to the results of physical examination. The prevalence rate of hypertension was calculated. The analyses were done by t test and Chi-square test for single hypertension risk factor screening, and by Logistic regression for multiple risk factors analysis. Results There were 183 hypertension cases in 4 000 civil pilots. The hypertension prevalence rate was 4.58%. Single factor analysis found that age, position, family history of hypertension, BMI, smoking, eating habits, physical exercise, flight time, TG, LDL-C were different between two groups and the difference was statistically significant (P<0.05). Multivariable analysis found that the older age, having a family history of hypertension, smoking, high BMI, long-term flight and high LDL-C level were the risk factors for civil pilots′ hypertension, while the physical exercise was the protective factor. Conclusions The prevalence rate of hypertension in civil pilots is lower than that in conventional census, but the civil pilots have certain degree of hypertension risk. Strengthened early intervention is suggested for the civil pilots with hypertension risk factors. Key words: Hypertension; Prevalence; Risk factors; Pilots