腰围与体重指数正常儿童的血压相关：对3417名学童的横断面分析
Waist Circumference is Associated with Blood Pressure in Children with Normal Body Mass Index: A Cross-Sectional Analysis of 3,417 School Children.
作者信息
Pazin Daiane Cristina, Rosaneli Caroline Filla, Olandoski Márcia, Oliveira Edna Regina Netto de, Baena Cristina Pellegrino, Figueredo Alyne S, Baraniuk Analin Ono, Kaestner Tatiana Lorena da Luz, Guarita-Souza Luiz Cesar, Faria-Neto José Rocha
机构信息
Pontifícia Universidade Católica do Paraná, Curitiba, PR- Brazil.
Universidade Estadual de Maringá, Maringá, PR - Brazil.
出版信息
Arq Bras Cardiol. 2017 Dec;109(6):509-515. doi: 10.5935/abc.20170162. Epub 2017 Nov 27.
BACKGROUND
The prevalence of childhood obesity and associated conditions, such as hypertension, has become a major problem of public health. Although waist circumference (WC) is a marker of cardiovascular risk in adults, it is unclear whether this index is associated with cardiovascular risk factors in children.
OBJECTIVE
Our aim was to evaluate the association between increased WC and elevated blood pressure (BP) in children with normal body mass index (BMI) ranges.
METHODS
Cross-sectional evaluation of students between 6 and 11 years with normal BMI. WC was categorized by quartile for each age group. Normal BP was defined as values < 90th percentile, and levels above this range were considered elevated. Values of p < 0.05 were considered statistically significant.
RESULTS
Of the 5,037 children initially assessed, 404 (8%) were excluded for being underweight and 1,216 (24.1%) were excluded for being overweight or obese. A final sample of 3,417 children was evaluated. The prevalence of elevated BP was 10.7%. In children with WC in the lowest quartile, the prevalence of elevated BP was 8.1%. This prevalence increased in upper quartiles: 10.6% in the second, 12.4% in third and 12.1% in the upper quartile. So, in this group, being in the highest WC quartile was associated with a 57% higher likelihood to present elevated BP when compared to those in the lowest quartile (Q4 vs Q1; OR 1.57 - 95%CI 1.14 - 2.17).
CONCLUSION
In children aged 6 to 11 years, increased waist circumference is associated with elevated BP even when BMI is normal.
背景
儿童肥胖及相关病症（如高血压）的患病率已成为一个主要的公共卫生问题。虽然腰围（WC）是成人心血管风险的一个指标，但尚不清楚该指标是否与儿童心血管危险因素相关。
目的
我们的目的是评估正常体重指数（BMI）范围内儿童腰围增加与血压（BP）升高之间的关联。
方法
对BMI正常的6至11岁学生进行横断面评估。WC按每个年龄组的四分位数进行分类。正常血压定义为值<第90百分位数，高于此范围的值被视为升高。p<0.05的值被认为具有统计学意义。
结果
在最初评估的5037名儿童中，404名（8%）因体重过轻被排除，1216名（24.1%）因超重或肥胖被排除。最终对3417名儿童进行了评估。血压升高的患病率为10.7%。WC处于最低四分位数的儿童中，血压升高的患病率为8.1%。该患病率在较高四分位数中增加：第二个四分位数为10.6%，第三个四分位数为12.4%，最高四分位数为12.1%。因此，在该组中，与处于最低四分位数的儿童相比，处于最高WC四分位数的儿童出现血压升高的可能性高57%（Q4与Q1相比；OR 1.57 - 95%CI 1.14 - 2.17）。
结论
在6至11岁的儿童中，即使BMI正常，腰围增加也与血压升高相关。
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