血脂与高血压关系的前瞻性研究

目的 探讨基线血压正常者在随访期间发展为高血压的危险与基线时不同血脂变量水平的关系.方法 2000年4月建立年龄为34～74岁共8685人的研究队列,取得基线数据.2006年6月开始对其中基线调查满5年的对象进行随访;对进入随访、符合纳入标准且资料完整的2603名基线血压正常者在中位数随访6.38年期间发展为高血压的危险与基线不同血脂变量水平的关系进行分析.结果 基线血脂水平与随访期间高血压发生率之间有一定的联系,调整性别、年龄模型中,各血脂指标变量均与高血压有联系(趋势检验P<0.01);多变量调整模型中,HDL-C[αRR=0.71(95%CI:0.61～0.99)]、非HDL-C[αRR=1.28(95%CI:1.14～1.83)]、TC/HDL-C的比值[αRR=1.41(95%CI:1.25～2.03)]和TG[αRR=1.49(95%CI:1.30～2.13)]仍与高血压有联系(趋势检验P<0.05);进一步调整BMI后,减弱了各血脂指标变量与高血压联系的aRR,但aRR仍有统计学意义;用Cox模型调整基线SBP、DBP后各血脂指标变量与高血压关系的αRR有所降低,但HDL-C、TC/HDL-C比值、TG与高血压发病率仍有显著的联系.当剔除肥胖患者(BMl≥28)和已经诊断为糖尿病的这2个与高血压明显相关的危险因子后HDL-C(趋势检验P=0.01)、TG(趋势检验P<0.05)、非HDL-C(趋势检验P<0.05)和TC/HDL-C的比值(趋势检验P<0.05)仍然与高血压有联系.结论 血脂异常可能发生在高血压之前,即使排除了肥胖和糖尿病患者,或者调整了吸烟、饮酒甚至是基线SBP、DBP水平后,HDL-C、TC/HDL-C和TG仍与高血压有联系.

A prospective study on the association between dyslipidemia and hypertension

Objective To discuss the risks of hypertension development with relation to the level of lipid variables among populations who had normal blood pressure at baseline study. Methods In April 2000, under the support of project prevention of metabolic syndrome and multi-metabolic disorders in Jiangsu province, a cohort study was performed to obtain the baseline data among 8685 persons from age 34 to 74. In June of 2006, a follow-up investigation was carried out among those who had been in the study for 5 years after the baseline study started. 2603 persons who met the selection criteria and showed normal blood pressure during baseline study, were recruited in this investigation. The interval from the baseline to the follow-up studies was 6.38 years on average. Relationship between the risk of developing hypertension and the baseline level of lipid variables were analyzed. Results Relations between baseline lipid levels and the incidence of hypertension during the follow-up was discovered. In gender and age adjusted model, the lipid variables were all associated with hypertension(Wend test, P<0.01). In multivariable-adjusted model, HDL-C [aRR=0.71 (95%CI: 0.61-0.99)], non-HDL-C [αRR=1.28 (95%CI: 1.14-1.83)], TC/HDL-C ratio[aRR=1.41 (95%CI: 1.25-2.03)] and TG [αRR=1.49(95%CI: 1.30-2.13)] were again associated with hypertension (trend test, P<0.05). Even the αRR was much weakened after the baseline SBP, DBP were adjusted with Cox model, the significant relation of hypertension to HDL-C, TC/HDL-C ratio and TG still existed. Excluding the two factors of obesity (BMI≥28) and diabetes which had been recognized in marked linking with hypertension, lipid variables were still associated with hypertension. Conclusion Dyslipidemia might occur before being hypertensive. Hypertension was associated with HDL-C, TC/HDL-C and TG or even exclusion of obesity, diabetes and factors of smoking and drinking or baseline level of SBP, DBP were adjusted.