Islamiyati Anna, Kalondeng Anisa, Zakir Muhammad, Djibe Sultan, Sari Ummi
Department of Statistics, Hasanuddin University, Makassar, Indonesia.
Department of Mathematics, Hasanuddin University, Makassar, Indonesia.
Iran J Nurs Midwifery Res. 2024 Sep 4;29(5):549-554. doi: 10.4103/ijnmr.ijnmr_342_22. eCollection 2024 Sep-Oct.
The growth of children aged 0-60 months can impact their subsequent growth and development. This study aims to identify the vulnerable age for boys and girls, who experience growth retardation within this age range.
The study design used was a cross-sectional approach in which each child's measurement data was only taken once. The data were obtained from weighing results at the Health Integrated Service Post in South Sulawesi Province in 2022. The number of data analyzed was 698 children, namely 369 boys and 329 girls by considering the factors of age, weight, and height. We used a nonparametric bi-response regression model estimated using a penalized spline. The knots used are 12, 24, 36, and 48 on each model.
The value of the penalized spline regression coefficient in the model indicates that the child's growth is slowed down and is not within normal limits. This can be seen in the weight and height of boys from the age of reaching 12 months to 24 months, only increasing by about 0.3 kg and 0.3 cm. For girls, the problem occurs from the age of 24 to 36 months, namely their weight increases by about 0.6 kg, and their height increases by about 1 cm.
The analysis results show that boys' growth slows down at 2 years of age and continues until 5 years of age. In the case of girls, their growth begins to slow when they are 3 years old until they reach 5 years old.
0至60个月儿童的生长会影响其后续的生长发育。本研究旨在确定在该年龄范围内出现生长迟缓的男孩和女孩的易患年龄。
采用横断面研究设计，每个儿童的测量数据仅采集一次。数据来自2022年南苏拉威西省综合健康服务站的称重结果。通过考虑年龄、体重和身高因素，分析的数据数量为698名儿童，即369名男孩和329名女孩。我们使用了一种使用惩罚样条估计的非参数双响应回归模型。每个模型使用的节点为12、24、36和48。
模型中惩罚样条回归系数的值表明儿童生长放缓且不在正常范围内。这在男孩12个月至24个月大时的体重和身高上可见，体重仅增加约0.3千克，身高仅增加约0.3厘米。对于女孩，问题出现在24至36个月大时，即体重增加约0.6千克，身高增加约1厘米。
分析结果表明，男孩在2岁时生长放缓并持续至5岁。对于女孩，她们在3岁时开始生长放缓直至5岁。
