Sinha Sikha, Aggarwal Abha Rani, Osmond Clive, D Fall Caroline H, Bhargava Santosh K, Sachdev Harshpal Singh
*Sitaram Bhartia Institute of Science and Research, $University School of Medicine and Para-medical Health Sciences, Guru Gobind Singh Indraprastha University, #National Institute of Medical Statistics, Indian Council of Medical Research, and ‡Sunder Lal Jain Hospital, New Delhi, India; and **MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK. Correspondence to: Prof Harshpal Singh Sachdev, Senior Consultant Pediatrics and Clinical Epidemiology, Sitaram Bhartia Institute of Science and Research, B-16 Qutab Institutional Area, New Delhi 110 016, India.
Indian Pediatr. 2017 Mar 15;54(3):185-192. doi: 10.1007/s13312-017-1028-z. Epub 2016 Dec 5.
To evaluate intergenerational change in anthropometric indices of children and their predictors.
Prospective cohort.
New Delhi Birth Cohort participants (F1), born between 1969 and 1972, were followed-up for anthropometry at birth and 6-monthly intervals until 21 years. Their children (F2) below 10 years were evaluated anthropometrically.
Intergenerational change (F2-F1) in height, weight and body mass index (BMI) of children in comparison to their parents at corresponding ages.
432 F2-F1 pairs were analyzed in age-groups of 0-5 (26.9%) and 5-10 (73.1%) years. Children were considerably taller (0-5 years 0.99 SD; 5-10 years 1.17 SD) and heavier (0-5 years 0.77 SD; 5-10 years 1.52 SD) while only those aged 5-10 years were broader (had a higher BMI; 1.03 SD), than their parents. These increases for 0-5 and 5-10 years, respectively corresponded to 3.9 and 6.4 cm for height, 1.3 and 5.4 kg for weight and 0.2 and 1.9 kg/m2 for BMI. Lower parents' anthropometric indices and poor water supply and sanitation facilities; higher age of parents at child birth and of children when measured (for height and weight); and more parental education (for weight and BMI), were associated with greater intergenerational gains in children.
Over one generation in an urban middle-class population, whose general living conditions had improved, under-five children have become considerably taller and heavier, and 5-10 year old children have additionally become broader, than their parents at corresponding ages. Child populations probably 'grow up' before 'growing out'.
评估儿童人体测量指标的代际变化及其预测因素。
前瞻性队列研究。
新德里出生队列参与者（F1），出生于1969年至1972年之间，在出生时及之后每6个月进行一次人体测量随访，直至21岁。对其10岁以下的子女（F2）进行人体测量评估。
与相应年龄的父母相比，儿童身高、体重和体重指数（BMI）的代际变化（F2 - F1）。
对432对F2 - F1进行了分析，年龄组为0 - 5岁（26.9%）和5 - 10岁（73.1%）。与父母相比，儿童明显更高（0 - 5岁时高0.99标准差；5 - 10岁时高1.17标准差）、更重（0 - 5岁时重0.77标准差；5 - 10岁时重1.52标准差），而只有5 - 10岁的儿童更宽（BMI更高；高1.03标准差）。0 - 5岁和5 - 10岁儿童的这些增加分别对应于身高增加3.9厘米和6.4厘米、体重增加1.3千克和5.4千克、BMI增加0.2千克/平方米和1.9千克/平方米。父母较低的人体测量指标、较差的供水和卫生设施；父母生育时及测量儿童时的较高年龄（针对身高和体重）；以及更多的父母教育程度（针对体重和BMI），与儿童更大的代际增长相关。
在城市中产阶级人群中，经过一代人的时间，总体生活条件有所改善，5岁以下儿童比相应年龄的父母明显更高、更重，5 - 10岁儿童还更宽。儿童群体可能在“横向生长”之前先“纵向长大”。
