| 梁璐,米杰,张明明,王友发,王天有.儿童期Korotkoff第Ⅳ、Ⅴ音的差异及对成年高血压的预测价值[J].Chinese journal of Epidemiology,2008,29(2):110-115 |
| 儿童期Korotkoff第Ⅳ、Ⅴ音的差异及对成年高血压的预测价值 |
| Study on the impact of the choice of diastolic Korotkoff phase in childhood on prediction to adult hypertension |
| Received:November 08, 2007 Revised:June 28, 2012 |
| DOI： |
| KeyWord: 高血压 Korotkoff第Ⅳ音 Korotkoff第Ⅴ音 儿童青少年 |
| English Key Word: Hypertension Korotkoff phase 4 Korotkoff phase 5 Child and adolescent |
| FundProject:北京市科技计划重点课题资助项目(H030930030330);国家自然科学基金资助项目(30671804);北京市自然科学基金资助项目(7072011);国家科技支撑计划资助项目(2006BAI01A01) |
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| Abstract: |
| 目的 探讨儿童青少年期Korotkoff第Ⅳ音(K4)与第Ⅴ音(K5)的差异及对成年高血压的预测价值,为选择血压测量方案和制定儿童血压评价标准提供依据.方法 2005年追访1987年建立的"北京儿童血压研究"队列人群,基线儿童期K4、K5作为舒张压(DBP),采用WHO 1996年标准诊断基线儿童期高血压;成年期记录K5作为DBP,采用《中国高血压防治指南(2005年修订版)》诊断成年期高血压.比较儿童期K4、K5的差异及对成年高血压的预测价值.结果 1987年基线调查6～17岁学龄儿童2505人,2005年追访到412人.基线K4-K5差值的几何均数为(10.1±1.7)mm Hg(1 mm Hg=0.133 kPa),并随年龄增长而下降;除青春期外,其他年龄男女之间K4-K5的差异无统计学意义.各年龄组K4-K5差值的分布构成有统计学意义(P＜0.001),6～9岁、10～12岁、13～15岁、16～17岁分别有59.6%、60.5%、56.3%和45.1%的儿童K4与K5差值大于10 mm Hg.按WHO标准,采用K4、K5为DBP诊断高血压检出率分别为5.0%和2.4%.儿童期K4与成年期血压的相关程度优于K5;且能预测成年期高血压.结论 当使用汞测压计测量儿童血压时,采用K4记录DBP,能更真实地反映儿童血压水平,使不同儿童的DBP水平具有可比性;并且K4与成年DBP的关联度更高,即轨迹现象更强,更能体现儿童血压水平对成年高血压的预测价值. |
| English Abstract: |
| objective The best approach for blood pressure(BP)measurement in children remains controversial,especially on the choice of Korotkoff phase 4(K4)vs．Korotkoff phase 5(K5)for diastolic BP(DBP)and to compare the differences between K4 and K5 in school,aged children and their predictions to hypertension in adult.Methods The“Beijing children and adolescents BP study”cohort population consisted 2505 sch∞l-aged children aged 6 to 17 at baseline survey in 1 987, when datum of systDlic BP (SBP),DBP measured using K4 and K5,were colIected respectively．Among them,412 individuals with 220 males and 192 females at age of 23．37 years old,were successfully followed up and invited to take part in a clinical examination including anthropometric measurements,SBP and DBP recordings, and a questionnaires in 2005.Method fOr the BP measurements at both baseline and followed-uD was bv auscultation with a standard sphygmomanameter．Child hypertension at baseline was diagnosed according to the age-specific cutoffs recommended by the World Health Organization in 1 996(WHO 1996).Adult hypertension was diagnosed according to the(：hina(;uideline for Hypertension Prevention and Cbntrol issued in 2005.Partial correlation coefficients were calculated to describe the association of K4 and K5 in childhood with SBP and DBP 1evel in adulthood.Mu1tivariate logistic regression analysis was conducted to examine the impact of choice of K5 and K4 as DBP in childh∞d on prediction to the hypertension in adulth00d.Potential confounders such as gender and adult-height were controlled for.Results At baseline,the prevalence rates of hypertension were 5．O%with DBP measured using K4,and 2．4%with DBP measured using K5,respectively．The geometric mean difference value of K4 minus K5(K4-K5) was(10．1±1．7 mm Hg)(1 mm Hg=O．133 kPa)for the 2505 school-aged children,and decreased as age increased.There was no significant difference regarding the values of K4-K5 between males and females in all age groups except for children who at pubertal stage．The dist“bution of K4-K5 value across age groups was statistically significant(P<0．001),59．6%,60．5%,56．3%and 45．1%of c hildren who aged 6-9 years,10-12 years,13-15 yearS,and 16-17 yearS with their K4-K5 value Dver 10 mm Hg．K4 in childhood was better correlated to both SBP and DBP in adulthood than K5.In general,K4 seemed to be superior to K5 in predicting hypertension in adulth00d, The odds ratios of hypcrtension in adulthOOd were 1．69(95%C,：1．11-2．00),1．45(1．05-2．02)’2 18(1．37-3．47),and 1．66(1．07o2．59)with each 5 mmHg increasing of K4 measured in children aged 6-9 years,10-12 years,13-15 years,and 16-17 years, respectively,The agreement diagnosis between chifd hypertension and adult hypertension was higher for childhOOd DBP measured using K4(20．2%) than that using K5 (12．8%).Conclusion There was significant difference between K4 and K5 in Chinese children and adolescents．Choice of diastolic Korotkoff b100d pressure could affect DBP tracking from childh00d into adulthood.K4 seemed superior to K5 when using auscuItator technique to measure DBP． |
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