Hawamdeh H, Spencer N
School of Postgraduate Medical Education, University of Warwick, Coventry, UK.
J Epidemiol Community Health. 2003 Feb;57(2):154-8. doi: 10.1136/jech.57.2.154.
To study the effect of work related variables on the height, weight, and body mass index (BMI) of working boys aged 10-16 years.
Cross sectional survey.
Irbid, Jarash, and North Jordan Valley in Jordan.
135 working boys aged 10-16 years and their mothers.
Height for age z score; weight for age z score; BMI for age z score.
In bivariate analysis, child's duration of work (r=-0.20), maternal height (r=0.26), and household per capita income (r=0.23) were significantly correlated with height for age z score and duration of work (r=-0.24), maternal height (r=0.24), and household per capita income (r=0.19) with weight for age z score. Duration of work (p<0.001), child's monthly income (p=0.044), maternal height (p=0.002), and household per capita income (p=0.005) were retained in the regression model fitted on height z score that explained 20.1% of the variance. The regression model fitted on weight z score explained 20.1% of the variance and duration of work (p<0.001), child's monthly income (p=0.022), household per capita income (p=0.017), and maternal height (p=0.004) were retained. Only duration of work (p=0.001) was retained in the model fitted on BMI for age z score.
The results of this study suggest that the length of time children have been working and low monthly income have a detrimental effect on growth of working boys independent of the effects of low household per capita income and small maternal stature. Relevance of these findings for social policy and health care of working boys in Jordan and elsewhere is discussed.
研究与工作相关的变量对10至16岁在职男孩身高、体重和体重指数（BMI）的影响。
横断面调查。
约旦的伊尔比德、杰拉什和北约旦河谷。
135名10至16岁的在职男孩及其母亲。
年龄别身高Z评分；年龄别体重Z评分；年龄别BMI Z评分。
在双变量分析中，儿童工作时长（r = -0.20）、母亲身高（r = 0.26）和家庭人均收入（r = 0.23）与年龄别身高Z评分显著相关，工作时长（r = -0.24）、母亲身高（r = 0.24）和家庭人均收入（r = 0.19）与年龄别体重Z评分显著相关。工作时长（p < 0.001）、儿童月收入（p = 0.044）、母亲身高（p = 0.002）和家庭人均收入（p = 0.005）被纳入拟合身高Z评分的回归模型，该模型解释了20.1%的方差。拟合体重Z评分的回归模型解释了20.1%的方差，工作时长（p < 0.001）、儿童月收入（p = 0.022）、家庭人均收入（p = 0.017）和母亲身高（p = 0.004）被保留。在拟合年龄别BMI Z评分的模型中，仅工作时长（p = 0.001）被保留。
本研究结果表明，儿童工作时间长度和低月收入对在职男孩的生长有不利影响，且独立于低家庭人均收入和母亲身材矮小的影响。讨论了这些发现对约旦及其他地区在职男孩社会政策和医疗保健的相关性。
