Optimal growth and development in childhood and adolescence is crucial for lifelong health and well-being1–6. Here we used data from 2,325 population-based studies, with measurements of height and weight from 71 million participants, to report the height and body-mass index (BMI) of children and adolescents aged 5–19 years on the basis of rural and urban place of residence in 200 countries and territories from 1990 to 2020. In 1990, children and adolescents residing in cities were taller than their rural counterparts in all but a few high-income countries. By 2020, the urban height advantage became smaller in most countries, and in many high-income western countries it reversed into a small urban-based disadvantage. The exception was for boys in most countries in sub-Saharan Africa and in some countries in Oceania, south Asia and the region of central Asia, Middle East and north Africa. In these countries, successive cohorts of boys from rural places either did not gain height or possibly became shorter, and hence fell further behind their urban peers. The difference between the age-standardized mean BMI of children in urban and rural areas was <1.1 kg m–2 in the vast majority of countries. Within this small range, BMI increased slightly more in cities than in rural areas, except in south Asia, sub-Saharan Africa and some countries in central and eastern Europe. Our results show that in much of the world, the growth and developmental advantages of living in cities have diminished in the twenty-first century, whereas in much of sub-Saharan Africa they have amplified.

Work related musculoskeletal disorders (WRMSDs) represent one of the leading causes of occupational injury and disability among the professional nursing, due to the number and variety of risk factors associated with the work environment. This study was carried out to determine the prevalence of work related musculoskeletal disorders (WRMSDs) and its association with ergonomic risk factors. A selfadministered questionnaire and observational method was used to collect information from 420 individuals and then the data were computerized and analyzed by using SPSS version 21.

Children accidents are an essential source of death and wounds among children during the first of life. Annually, millions of children are constantly becoming handicap or blemished because of mishaps. Objective: To assess knowledge of children mothers toward home accidents in polytechnic University of Sulaimani. Methodology: A simple random sample of (110) respondents were selected.. The data collected and composed during the utilization of a created questionnaire, with two parts; the first part assessed the knowledge of children mothers with (20) yes or no questions and the second part includes the mothers' demographic attributes. A pilot study was carried out for the period of December 18th to 28th 2015 in order to conclude the questionnaire accuracy during the use of (Test -Retest). A panel of (8) experts was include in the determination of the questionnaire content validity Data were analyzed through the application of descriptive statistical data analysis approach (frequency and percentage), and inferential data analysis approach (Mean of Scores).). The results of the study revealed, the mean age of the mothers was (1.86) years, (58.2%) of them had completed secondary school, (88.2%) of mothers have more than five children, (89.1%) of mother's were in moderate socio-economic status, (47.3%) of mothers have personal reading information,(58.2) of the child were male,(13.6%) of mothers have knowledge about safe housing condition held in Maternal and Child Health Centers. The conclusion of this study revealed that, inadequate children mothers' knowledge regarding home accidents among children less than six years held in Maternal and Child Health Centers during the antenatal period. So the recommendation are suggested, reinforces the need for effective education program via mass media, for mothers.

Background: Cardiovascular diseases (CVDs) are responsible for a high proportion of deaths caused by non-communicable diseases (NCDs) worldwide. The incidence of CVDs is largely attributed to several risk factors. Aim of the study: To estimate the prevalence of common risk factors of cardiovascular diseases among secondary school students in Sulaimani city / Kurdistan-Iraq. Subjects and Methods: One thousand and two hundred secondary school students between 16-18 years of age from eight secondary schools in the city of Sulaimani were selected to participate in this study. Students were selected randomly. The questionnaire form, which includes information about risk factors related to cardiovascular diseases, was filled by these students, after which, weight and height were measure to calculate the body mass index (BMI) in addition to measuring blood pressure (BP).   Permission to conduct the study was obtained from the principles of the participating schools. Consents were obtained from the parents of the students and the students themselves before data collection. Results: Low physical activity was very high among both males (84%) and females (95.8%). Although the rate of smoking was low among both males (12%) and females (4.2%), the association was statistically significant. The rate of smoking tobacco products other than cigarettes (water pipe and vape) was 27.6% among males and 10.2% among females. The rate of high systolic blood pressure was 6.7% and 2.9% in males and females respectively while the rate of high diastolic blood pressure was 5% and 10.7% in males and females respectively. The rates of high systolic blood pressure among overweight, normal weight and underweight students were 8.3%, 4.0% and 1.6% respectively. Conclusion: A significant prevalence of modifiable common risk factors such as low physical activity, smoking, hypertension, overweight, and obesity was found among both male and female secondary school students in Sulaimani city.