School of Human Kinetics, University of British Columbia , Canada.
J Sports Sci Med. 2007 Mar 1;6(1):142-8. eCollection 2007.
At least 50% of children have one or more cardiovascular disease (CVD) risk factor. We aimed to 1) determine the prevalence of CVD risk factors in a sample of Canadian children, and 2) create a Healthy Heart Score that could be used in a school setting, to identify children with a greater number and severity of CVD risk factors. Children (n = 242, 122M, 120F, aged 9-11 years) were assessed for cardiovascular fitness, physical activity, systolic/diastolic blood pressure, and body mass index (BMI). Biological values were converted to age and sex specific percentiles and allocated a score. Healthy Heart Scores could range between 5 and 18, with lower scores suggesting a healthier cardiovascular profile. Seventy-seven children volunteered for blood samples in order to assess the relationship between the Healthy Heart Score and (total cholesterol (TC), high and low-density lipoprotein cholesterol (HDL, LDL) and triglycerides (TG). Fifty eight percent of children had elevated scores for at least 1 risk factor. The group mean Healthy Heart Score was 8 (2.2). The mean score was significantly higher in boys (9 (2.2)) compared with girls (8 (2.1), p < 0.01). A high score was significantly associated with a low serum HDL, a high TC:HDL and a high TG concentration. Our results support other studies showing a high prevalence of CVD risk factors in children. Our method of allocation of risk score, according to percentile, allows for creation of an age and sex specific CVD risk profile in children, which takes into account the severity of the elevated risk factor. Key pointsThere was a high incidence of elevated risk factors for cardiovascular disease in Canadian elementary school children.Physical fitness and physical activity levels were particularly low.In this cohort, boys had increased levels of cardiovascular disease risk factors compared with age-matched girls.
至少 50%的儿童存在一个或多个心血管疾病 (CVD) 风险因素。我们旨在：1）确定加拿大儿童样本中 CVD 风险因素的流行率；2）创建一个健康心脏评分，可用于学校环境，以识别具有更多和更严重 CVD 风险因素的儿童。评估了 242 名儿童（122 名男性，120 名女性，年龄 9-11 岁）的心血管健康状况、身体活动、收缩压/舒张压和体重指数 (BMI)。将生物值转换为年龄和性别特定的百分位数，并分配一个分数。健康心脏评分的范围可以在 5 到 18 之间，分数越低表明心血管健康状况越好。有 77 名儿童自愿进行血液样本检测，以评估健康心脏评分与（总胆固醇 (TC)、高密度脂蛋白胆固醇 (HDL)、低密度脂蛋白胆固醇 (LDL) 和甘油三酯 (TG)）之间的关系。至少有 1 个风险因素升高的儿童占 58%。组平均健康心脏评分为 8（2.2）。男孩的平均得分（9（2.2））明显高于女孩（8（2.1），p<0.01）。高评分与低血清 HDL、高 TC：HDL 和高 TG 浓度显著相关。我们的结果支持其他研究表明，儿童 CVD 风险因素的患病率很高。我们根据百分位数分配风险评分的方法，可以为儿童创建一个年龄和性别特定的 CVD 风险概况，其中考虑了升高的风险因素的严重程度。关键点加拿大小学儿童心血管疾病风险因素升高的发生率很高。身体素质和身体活动水平特别低。在该队列中，与年龄匹配的女孩相比，男孩的心血管疾病风险因素水平增加。
