Abstract:Background: Childhood and adolescent obesity is a global public health concern because of associated increased risk of cardiovascular diseases later in life. Although there are several studies on childhood obesity in Nigeria, few have assessed it in adolescents.
“…Due to varying epidemiologic, geographic, and economic dynamics prevalent in the study settings, the minimum sample sizes were estimated separately for Gombe and Uyo. In Gombe, the sample size was computed based on a prevalence of overweight/obesity of 2.82% from a previous study in Kano, northern Nigeria which is geographically and economically similar to Gombe [24]. In estimating the 377 adolescents studied in Gombe, a power of 80%, degree of precision of 2% [25], a 95% confidence interval, and a 10% parental refusal rate or i ncomplete data was assumed.…”
Background:
Over the past three decades, double burden of malnutrition (DBM), a situation where high levels of undernutrition (stunting, thinness, or micronutrient deficiency) coexist with overnutrition (overweight and obesity), continues to rise in sub-Saharan Africa. Compared to other countries in the region, the evidence on DBM is limited in Nigeria.
Objective:
This paper aimed to determine the comparative prevalence of population-level and individual-level DBM among adolescents in two emerging cities in northern and southern Nigeria.
Methods:
This was a comparative cross-sectional study among apparently healthy secondary school adolescents aged 10–18 years in Gombe (northern Nigeria) and Uyo (southern Nigeria) between January 2015 and June 2017. A multistage random sampling technique was implemented to recruit adolescents from 24 secondary schools in both cities. Measures of general obesity (body mass index) and stature (height-for-age) were classified and Z-scores generated using the WHO
AnthroPlus
software, which is based on the WHO 2006 growth reference. Population-level DBM was defined as the occurrence of thinness and overweight/obesity within the population. Individual-level DBM was defined as the proportion of individuals who were concurrently stunted and had truncal obesity or stunted and were overweight/obese.
Findings:
Overall, at the population-level in both settings, 6.8% of adolescents had thinness, while 12.4% were overweight/obese signifying a high burden of population-level DBM. Comparatively, the population-level DBM was higher in Gombe compared to Uyo (thinness: 11.98% vs 5.3% and overweight/obesity: 16.08% vs 11.27% in Gombe vs Uyo respectively). Overall, at the individual level, 6.42% of stunted adolescents had coexisting truncal obesity, while 8.02% were stunted and had coexisting general overweight/obesity. Like the trend with population-level DBM, individual-level DBM was higher in Gombe (northern Nigeria) compared to Uyo (southern Nigeria).
Conclusion:
High levels of population-level and individual-level DBM exist in Gombe and Uyo. However, the level of DBM (under- and over-nutrition) is higher in Gombe located in northern Nigeria compared to Uyo in southern Nigeria.
“…Due to varying epidemiologic, geographic, and economic dynamics prevalent in the study settings, the minimum sample sizes were estimated separately for Gombe and Uyo. In Gombe, the sample size was computed based on a prevalence of overweight/obesity of 2.82% from a previous study in Kano, northern Nigeria which is geographically and economically similar to Gombe [24]. In estimating the 377 adolescents studied in Gombe, a power of 80%, degree of precision of 2% [25], a 95% confidence interval, and a 10% parental refusal rate or i ncomplete data was assumed.…”
Background:
Over the past three decades, double burden of malnutrition (DBM), a situation where high levels of undernutrition (stunting, thinness, or micronutrient deficiency) coexist with overnutrition (overweight and obesity), continues to rise in sub-Saharan Africa. Compared to other countries in the region, the evidence on DBM is limited in Nigeria.
Objective:
This paper aimed to determine the comparative prevalence of population-level and individual-level DBM among adolescents in two emerging cities in northern and southern Nigeria.
Methods:
This was a comparative cross-sectional study among apparently healthy secondary school adolescents aged 10–18 years in Gombe (northern Nigeria) and Uyo (southern Nigeria) between January 2015 and June 2017. A multistage random sampling technique was implemented to recruit adolescents from 24 secondary schools in both cities. Measures of general obesity (body mass index) and stature (height-for-age) were classified and Z-scores generated using the WHO
AnthroPlus
software, which is based on the WHO 2006 growth reference. Population-level DBM was defined as the occurrence of thinness and overweight/obesity within the population. Individual-level DBM was defined as the proportion of individuals who were concurrently stunted and had truncal obesity or stunted and were overweight/obese.
Findings:
Overall, at the population-level in both settings, 6.8% of adolescents had thinness, while 12.4% were overweight/obese signifying a high burden of population-level DBM. Comparatively, the population-level DBM was higher in Gombe compared to Uyo (thinness: 11.98% vs 5.3% and overweight/obesity: 16.08% vs 11.27% in Gombe vs Uyo respectively). Overall, at the individual level, 6.42% of stunted adolescents had coexisting truncal obesity, while 8.02% were stunted and had coexisting general overweight/obesity. Like the trend with population-level DBM, individual-level DBM was higher in Gombe (northern Nigeria) compared to Uyo (southern Nigeria).
Conclusion:
High levels of population-level and individual-level DBM exist in Gombe and Uyo. However, the level of DBM (under- and over-nutrition) is higher in Gombe located in northern Nigeria compared to Uyo in southern Nigeria.
“…The study found that about 10% of the female adolescents were overweight/obese. While some of the existing studies reported similar prevalence rate of obesity among Nigerian adolescents [19,20,[26][27][28][29][30][31], a systematic review in Nigeria put the range between 1 − 11.4% [17]. Comparison to the existing studies in Nigeria is challenging because of the varying methodologies, and reference values used to define overweight and obesity, which might be responsible for the very wide range of the reported prevalence rates of adolescent obesity in Nigeria.…”
Background
Overweight and obesity are increasing at epidemic levels in all ages globally, but there is little nationally representative data on female adolescents in Nigeria. The focus on female adolescents is important because of the negative implications of overweight and obesity on their health and survival, and that of their unborn children.
Aim
To estimate the prevalence and identify the determinants of overweight and obesity among female adolescents in Nigeria.
Methods
Cross-sectional study using data from the Nigeria demographic and health survey, 2018. A total of 2,721 female adolescents aged 15–19 years were selected using cluster sampling technique. Overweight and obesity were determined using BMI-for-age reference values of World Health Organization and different explanatory variables at the individual, household and community levels were included. Binary logistic regression analysis was used to identify the determinants of overweight/obesity using five models.
Results
The mean age of the respondents was 16.8 ± 1.4 years. The prevalence rate of overweight/obesity was 10.2%, but with a large variation in the geographical and socio-economic distribution. At the crude/unadjusted rate, nearly all the explanatory variables showed a statistically significant association with overweight and obesity, but at the full model which controlled for all the explanatory variables, only the household wealth index retained its statistically significant association, such that female adolescents who were from richer and richest households had about 3 times higher odds of being obese compared to those from the poorest households. (OR: 2.7; p = 0.018; CI: 1.18–6.18), (OR: 2.8; p = 0.027; CI: 1.13–7.06) respectively.
Conclusion
The prevalence of overweight/obesity among female adolescents in Nigeria was 10.2%. The household wealth index remained the only factor with a statistically significant association with overweight and obesity after controlling for confounders. Efforts at addressing overweight and obesity among female adolescents in Nigeria should target those from the richer/richest households.
“…In Nigeria's Benue state, prevalence of overweight and obesity in adolescent and children was 9.7 % and 1.8% respectively with rates being higher in children than in adolescents [5]. In Kano state, [13] reported a prevalence of 19.8% for overweight and 0.84% for obesity, while [50] reported 8.9% and 3.3% for respectively. [51] reported 10.3% overweight and 1.7% obesity in North Central Nigeria.…”
Section: Overweight and Obesity Trends Among School Children In Africamentioning
confidence: 99%
“…In sub-Saharan Africa the prevalence of overweight and obesity is more than 10% in many countries [8]. A number of studies have reported high and growing prevalence of more than 20% in childhood obesity across African nations, such as South Africa [11], Ghana [12], Nigeria [13], and Lesotho [14].…”
Background
Informed dietary choices during childhood is necessary for building good eating habits in the present and future generations. There is a significant increase globally in trends of over nutrition, specifically, overweight and obesity among school children in Africa calls for consideration of home and school environments.
Methods
A systematic literature search was conducted between October to December 2018 using Medline (PubMed), Directory of Open Access Journals and Google Scholar databases. Also, a grey literature review was conducted to identify and retrieve relevant documents and reports some of which from websites of international organizations. Major topics of interest were home and school food environments, dietary choices, school children and Africa. Out of 318 articles 30 were included in the full text read after meeting the inclusion criteria such as focusing on school children in Africa. Four reports from grey literature were also included. This review includes articles published between the 1st January 2008 and 30th June 2018.
Results
Available data from reviewed articles showed that obesity prevalence among school children in Africa is on the rise and ranges from less than 5% to more than 30% across countries. Few articles investigated the contribution of home and school environments on school children’s food choices which necessitates more research in this area.
Conclusion
Therefore, this review suggests that for effective implementation of childhood overweight and obesity reduction strategies, investigation of home and school determinants of children’s food choices is imperative.
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