Relationship between the muscle mass index and the aggregation of cardiovascular risk factors in children and adolescents aged 12-17 years in Yinchuan City
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摘要:
目的 探索儿童青少年肌肉质量指数(muscle mass index, MMI)与心血管危险因素(cardiovascular risk factors, CVRFs)聚集的关系, 为儿童青少年心血管疾病的防治提供科学依据。 方法 采用现况研究设计, 以整群随机抽样的方法抽取银川市12~17岁1 622名儿童青少年, 运用问卷调查、体格检查、体成分测定和实验室指标检测进行调查分析。 结果 未调整其他变量时, MMI与心血管危险因素聚集呈正相关(P值均 < 0.01), 调整年龄、性别和体质量指数(BMI)后, MMI与CVRFs≥1呈负相关(OR=0.74, 95%CI=0.62~0.89)。总人群中, 相比于MMI不足, MMI良好及充足与CVRFs≥1的发生风险呈负相关(OR=0.60, 95%CI=0.46~0.79;OR=0.56, 95%CI=0.37~0.85), 与CVRFs≥2的发生风险呈负相关(OR=0.54, 95%CI=0.37~0.79;OR=0.51, 95%CI=0.30~0.87), 男生中也有相似的结果(P值均 < 0.05)。 结论 相同BMI水平下, 肌肉质量指数是儿童青少年心血管危险因素聚集的保护因素。应重视儿童青少年体育锻炼, 保持最佳肌肉质量和体重。 Abstract:Objective To explore the relationship between the muscle mass index (MMI) and the aggregation of cardiovascular risk factors (CVRFs) in children and adolescents, and to provide a scientific basis for the prevention and treatment of cardiovascular diseases in children and adolescents. Methods The current situation study design was adopted, and 1 622 children and adolescents aged 12-17 years old in Yinchuan City were selected by a cluster random sampling method. All subjects were subjected to questionnaire survey, physical examination, body composition determination and laboratory index testing. Results When other variables were not adjusted, MMI was a risk factor for the aggregation of cardiovascular risk factors (P < 0.01). After adjusting for age, gender and BMI, MMI became a protective factor for CVRFs≥1 (OR=0.74, 95%CI=0.62-0.89), compared with insufficient MMI, the risk of developing CVRFs≥1 with good MMI and sufficient MMI was 0.60(95%CI=0.46-0.79), 0.56(95%CI=0.37-0.85) times. The risk of CVRFs≥2 was 0.54(95%CI=0.37-0.79), 0.51(95%CI=0.30-0.87) times, and similar results were found in boys (P < 0.05). Conclusion Under the same BMI level, muscle mass index is a protective factor for cardiovascular risk factor aggregation in children and adolescents. Physical exercise of children and adolescents should be emphasized to maintain the best muscle mass and weight. -
Key words:
- Cardiovascular system /
- Risk factors /
- Regression analysis /
- Child /
- Adolescent
1) 利益冲突声明 所有作者声明无利益冲突。 -
表 1 不同肌肉质量指数研究对象基本特征比较(x±s)
Table 1. Comparison of basic characteristics of subjects with different muscle mass index(x±s)
组别 人数 年龄/岁 身高/cm 身高-Z分 体重/kg 体重-Z分 BMI(kg·m-2) BMI-Z分 腰围/cm 腰围-Z分 MMI严重不足 71 15.1±1.3 166.9±8.7 -0.28±0.95 45.4±5.2 -1.10±0.32 16.2±1.0 -1.17±0.25 66.0±4.0 -0.84±0.33 MMI不足 411 15.0±1.2 167.9±8.4 -0.16±1.03 50.5±6.9 -0.69±0.49 17.9±1.6 -0.73±0.43 68.4±5.4 -0.59±0.52 MMI良好 714 14.7±1.4 167.7±8.5 -0.04±0.99 56.8±9.3 -0.14±0.64 20.1±2.4 -0.13±0.63 72.5±7.4 -0.17±0.71 MMI充足 426 14.4±1.4 168.6±8.2 0.27±0.92 71.0±14.1 1.08±0.98 24.8±3.7 1.12±0.96 83.9±11.4 0.98±1.09 F值 16.90 1.55 16.79 325.82 528.85 633.15 617.30 260.12 342.78 P值 < 0.01 0.20 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 组别 人数 MM/kg MM-Z分 收缩压/mm Hg 舒张压/mm Hg 总胆固醇/(mmol·L-1) 三酰甘油/(mmol·L-1)* 高密度脂蛋白胆
固醇/(mmol·L-1)低密度脂蛋白胆
固醇/(mmol·L-1)空腹血糖/(mmol·L-1) MMI严重不足 71 34.99±5.82 -1.43±0.49 106.6±8.7 69.2±8.2 4.07±1.04 1.01(0.93~1.10) 1.54±0.48 2.14±0.74 5.00±0.74 MMI不足 411 39.16±6.18 -0.77±0.55 107.8±10.4 67.2±7.6 4.09±0.98 0.96(0.92~0.99) 1.53±0.41 2.19±0.77 4.81±0.80 MMI良好 714 42.69±7.40 -0.05±0.63 111.2±10.6 66.8±7.8 3.85±0.90 0.96(0.93~0.99) 1.42±0.35 2.08±0.74 4.74±0.65 MMI充足 426 48.22±8.92 1.06±0.85 118.4±11.3 67.0±8.4 3.95±0.95 1.17(1.11~1.23) 1.34±0.35 2.19±0.81 4.79±0.59 F/H值 133.55 637.83 79.35 15.76 5.77 24.15 20.52 2.39 3.35 P值 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 0.07 0.02 注:*为M(P25~P75);1 mm Hg=0.133 kPa。 表 2 不同性别、年龄研究对象MMI分级分布
Table 2. Distribution of MMI classifications of study participants by gender and age
性别 年龄/岁 人数 严重不足 不足 良好 充足 男 12~14 290 11(3.79) 54(18.60) 125(43.10) 100(34.50) 15~17 710 39(5.49) 228(32.10) 315(44.40) 128(18.00) 小计 1 000 50(5.00) 282(28.20) 440(44.00) 228(22.80) 女 12~14 278 5(1.80) 50(18.00) 133(47.80) 90(32.40) 15~17 344 16(4.65) 79(23.00) 141(41.00) 108(31.40) 小计 622 21(3.40) 129(20.70) 274(44.10) 198(31.80) 注:()内数字为构成比/%。 表 3 儿童青少年MMI与心血管危险因素聚集的Logistic回归分析[OR值(OR值95%CI),n=1 622]
Table 3. Logistic regression analysis of MMI and the aggregation of cardiovascular risk factors in children and adolescents s [OR(OR 95%CI),n=1 622]
模型 自变量 CVRFs≥1 CVRFs≥2 1 MMI 1.38(1.24~1.53)** 1.58(1.39~1.81)** 2 MMI 0.74(0.62~0.89)** 0.85(0.68~1.07) BMI 2.14(1.78~2.58)** 2.02(1.63~2.52)** 3 正常体重、低MMI 1.00 1.00 正常体重、高MMI 0.88(0.70~1.12) 0.85(0.60~1.20) 超重肥胖、低MMI 6.73(0.74~61.31) 5.58(0.86~36.17) 超重肥胖、高MMI 2.89(2.17~3.85)** 3.04(2.13~4.34)** 注:连续性变量均计算Z值后纳入分析;**P < 0.01。 表 4 不同性别儿童青少年MMI分级与心血管危险因素聚集的关系[OR值(OR值95%CI)]
Table 4. Association between MMI classification and the aggregation of cardiovascular risk factors in children and adolescents by gender [OR(OR 95%CI)]
性别 MMI 人数 CVRFs≥1 CVRFs≥2 男 不足 332 1.00 1.00 良好 440 0.61(0.43~0.84)** 0.49(0.30~0.81)** 充足 228 0.56(0.33~0.96)* 0.58(0.29~1.18) 女 不足 150 1.00 1.00 良好 274 0.59(0.38~0.91)* 0.62(0.35~1.11) 充足 198 0.58(0.31~1.07) 0.46(0.21~1.02) 合计 不足 482 1.00 1.00 良好 714 0.60(0.46~0.79)** 0.54(0.37~0.79)** 充足 426 0.56(0.37~0.85)** 0.51(0.30~0.87)* 注:**P < 0.01,*P < 0.05。 -
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