scholarly journals Child Growth Curves in High-Altitude Ladakh: Results from a Cohort Study

Author(s):  
Wen-Chien Yang ◽  
Chun-Min Fu ◽  
Bo-Wei Su ◽  
Chung-Mei Ouyang ◽  
Kuen-Cheh Yang

High prevalence of child underweight and stunting in high-altitude areas has often been reported. However, most previous studies on this topic were cross-sectional. Another critical concern is that using the World Health Organization (WHO) Child Growth Standards to evaluate child growth in high-altitude areas may lead to overestimations of underweight and stunting. Our study aimed to evaluate the long-term growth pattern of children (3 to 18 years) above the altitude of 3500 m in Ladakh, India. The participants’ body weight (BW), body height (BH), and body mass index (BMI) were measured annually according to the WHO Child Growth Standards for children under 5 years old and the WHO reference data for children aged 5 to 19 years. The generalized estimating equation (GEE) was used to estimate the means and z-scores of BW, BH, and BMI at different ages. A total of 401 children were enrolled from 2012 to 2018. Their mean z-scores of BW, BH, and BMI were −1.47, −1.44, and −0.85 in 2012 and increased to −0.74, −0.92, and −0.63 in 2018. This population’s specific growth curve was also depicted, which generally fell below the 85th percentile of the WHO standards. This is the first cohort study about long-term child growth patterns in a high-altitude area. The detailed underlying mechanisms of our findings need future research on more representative data of high-altitude populations.

Children ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 133
Author(s):  
Perpetua Modjadji ◽  
Mpinane Pitso

Tobacco and alcohol use among mothers is associated with numerous adverse consequences for affected offspring, including poor growth and development. This study determined the association between maternal tobacco and alcohol use, and malnutrition, among infants aged ≤ 12 months (n = 300), in selected health facilities situated in Gauteng, South Africa. Data on alcohol and tobacco use were collected using a validated questionnaire, in addition to mothers’ socio-demographic characteristics and obstetric history. Stunting (low height/length-for-age), underweight (low weight-for-age) and thinness (low body mass index-for-age) were calculated using z-scores based on the World Health Organization child growth standards. The association of tobacco and alcohol use with stunting, underweight and thinness was analysed using logistic regression analysis. The results showed a mean age of 29 years (24.0; 35.0) for mothers and 7.6 ± 3 months for infants, and over half of the mothers were unemployed (63%). Approximately 18.7% of mothers had used tobacco and 3% had used alcohol during pregnancy. The prevalence of current tobacco and alcohol use among mothers were estimated at 14.3% and 49.7%, respectively, and almost three-quarters (67.3%) of them were still breastfeeding during the study period. Stunting (55%) was the most prevalent malnutrition indicator among infants, while underweight was 41.7%, and thinness was 22%. Current tobacco use was associated with increased odds of being thin [OR = 2.40, 95% CI: 1.09–5.45), and after adjusting for confounders, current alcohol use was associated with the likelihood of being underweight [AOR = 1.96, 95% CI: 1.06–3.63] among infants. Future prospective cohort studies that examine growth patterns among infants who are exposed to maternal tobacco and alcohol use from the intrauterine life to infancy are necessary to inform, partly, the public health programmes, to reduce malnutrition among children.


2006 ◽  
Vol 9 (7) ◽  
pp. 942-947 ◽  
Author(s):  
Mercedes de Onis ◽  
Adelheid W Onyango ◽  
Elaine Borghi ◽  
Cutberto Garza ◽  
Hong Yang ◽  
...  

AbstractObjectivesTo compare growth patterns and estimates of malnutrition based on the World Health Organization (WHO) Child Growth Standards (‘the WHO standards’) and the National Center for Health Statistics (NCHS)/WHO international growth reference (‘the NCHS reference’), and discuss implications for child health programmes.DesignSecondary analysis of longitudinal data to compare growth patterns (birth to 12 months) and data from two cross-sectional surveys to compare estimates of malnutrition among under-fives.SettingsBangladesh, Dominican Republic and a pooled sample of infants from North America and Northern Europe.SubjectsRespectively 4787, 10 381 and 226 infants and children.ResultsHealthy breast-fed infants tracked along the WHO standard's weight-for-age mean Z-score while appearing to falter on the NCHS reference from 2 months onwards. Underweight rates increased during the first six months and thereafter decreased when based on the WHO standards. For all age groups stunting rates were higher according to the WHO standards. Wasting and severe wasting were substantially higher during the first half of infancy. Thereafter, the prevalence of severe wasting continued to be 1.5 to 2.5 times that of the NCHS reference. The increase in overweight rates based on the WHO standards varied by age group, with an overall relative increase of 34%.ConclusionsThe WHO standards provide a better tool to monitor the rapid and changing rate of growth in early infancy. Their adoption will have important implications for child health with respect to the assessment of lactation performance and the adequacy of infant feeding. Population estimates of malnutrition will vary by age, growth indicator and the nutritional status of index populations.


2009 ◽  
Vol 30 (3) ◽  
pp. 254-259 ◽  
Author(s):  
Madarina Julia

Background The National Center for Health Statistics/World Health Organization (NCHS/WHO) reference is considered unsuitable for assessing the nutritional status of breastfed children. It is gradually being replaced by the WHO Child Growth Standards in many countries. Objective To assess the implications of adopting the WHO Child Growth Standards to classify Indonesian children according to nutrition status. Methods Data were obtained from two cross-sectional surveys in two districts in Indonesia in 1998. Children under 2 years of age were randomly selected using a two-stage cluster sampling. Z-scores of weight-for-length (WLZ), length-for-age (LAZ), and weight-for-age (WAZ) were calculated based on both the NCHS/WHO reference and the WHO Child Growth Standards. Wasting, stunting, and underweight were defined as z-scores less than −2.0. Results We included 1,374 children, of whom 693 (50.4%) were male and 681 (49.6%) were female. Almost all of the children had initiated breastfeeding and were still being breastfed when the data were collected. According to the WHO Child Growth Standards, the prevalence of wasting did not change with age, but the prevalence rates of stunting and underweight rose steadily with age. Although the contribution of wasting to the classification of underweight was relatively constant, the contribution of stunting increased as the children grew. Conclusions The WHO Child Growth Standards are a better tool for assessing the nutritional status of Indonesian children than the NCHS/WHO reference. However, low WAZ is not a suitable indicator for commencing an extra feeding program, because it reflects stunting instead of wasting. The high prevalence of stunting indicates the need to perform preventive nutritional intervention beginning earlier in life, i.e., in utero.


BMC Nutrition ◽  
2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jackline Kiarie ◽  
Sarah Karanja ◽  
Julius Busiri ◽  
Diana Mukami ◽  
Colleta Kiilu

Abstract Background Conflict regions bear the heaviest brunt of food insecurity and undernutrition. South Sudan is one of the fragile countries following years of conflict that led to large displacements. Moderate to severe undernutrition among under-five children has been associated with elevated morbidity and mortality. This study, therefore, was conducted to assess the magnitude and factors influencing undernutrition (wasting, underweight and stunting) among children aged 6 to 59 months in Yambio County, South Sudan. Methods A cross-sectional study was conducted from 26 October to 6 November 2018 in Yambio County, South Sudan among 630 children aged 6–59 months from the 348 households surveyed in 39 clusters using two-stage cluster sampling design. Data were collected using questionnaires and nutritional anthropometric measurements. The Standardized Monitoring and Assessment of Relief and Transitions (SMART) Methodology was followed to obtain the prevalence of wasting, underweight and stunting based on respective z scores and according to the 2006 world health organization child growth standards. Data were exported to Stata version 16 for further analysis. Bivariate analysis of independent variables and undernutrition was done using binary logistic regression. Mixed effects logistic regression analysis was conducted to control for possible confounders and account for random effects at household and cluster levels. Unadjusted and adjusted odds ratios (cOR and aOR) with 95% confidence intervals (CI) and p-values were computed. P-values of ≤0.05 were considered statistically significant. Results The prevalence of undernutrition explained by wasting (weight-for-height Z-score (WHZ) < − 2), underweight (weight-for-age z-scores (WAZ) < − 2) and stunting (height-for-age z-scores (WHZ) < − 2) were 2.3% (1.3–4.1, 95% CI), 4.8% (3.1–7.5, 95% CI) and 23.8% (19.1–29.2, 95% CI). Male sex (aOR [95% CI], p-value: 5.6 [1.10–30.04], p = 0.038), older child’s age (aOR [95% CI], p-value: 30.4 [2.65–347.60], p = 0.006) and non-residents (cOR [95% CI], p-value: 4.2 [1.4–12.2] p = 0.009) were associated with increased risk of wasting. Household size (cOR [95% CI], p-value: 1.09 [1.01–1.18] p = 0.029) and younger child age (cOR [95% CI], p-value: 4.2 [1.34–13.23] p = 0.014) were significantly associated with underweight. Younger child age (aOR [95% CI], p-value: 5.4 [1.82–16.44] p = 0.003) and agricultural livelihood (aOR [95% CI], p-value: 3.4 [1.61–7.02] p = 0.001) were associated with stunting. Conclusion Based on a cut off of less than − 2 standard deviations for 2006 World Health Organization (WHO) child growth standards, the wasting prevalence was very low, underweight prevalence was low while stunting prevalence was high. The county lies in the only livelihood region in South Sudan with bimodal reliable rainfall pattern and it seems that the impact of the 2016 conflicts that lead to large displacements may not have greatly affected under-five undernutrition. Interventions targeted at improving food diversity, increasing nutrition knowledge and enhancing resilience in male children might reduce undernutrition. In the short-term, investment in continued surveillance of nutritional status should be a main focus.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Barbara Iyen ◽  
Stephen Weng ◽  
Yana Vinogradova ◽  
Ralph K. Akyea ◽  
Nadeem Qureshi ◽  
...  

Abstract Background Although obesity is a well-recognised risk factor for cardiovascular disease (CVD), the impact of long-term body mass index (BMI) changes in overweight or obese adults, on the risk of heart failure, CVD and mortality has not been quantified. Methods This population-based cohort study used routine UK primary care electronic health data linked to secondary care and death-registry records. We identified adults who were overweight or obese, free from CVD and who had repeated BMI measures. Using group-based trajectory modelling, we examined the BMI trajectories of these individuals and then determined incidence rates of CVD, heart failure and mortality associated with the different trajectories. Cox-proportional hazards regression determined hazards ratios for incident outcomes. Results 264,230 individuals (mean age 49.5 years (SD 12.7) and mean BMI 33.8 kg/m2 (SD 6.1)) were followed-up for a median duration of 10.9 years. Four BMI trajectories were identified, corresponding at baseline, with World Health Organisation BMI classifications for overweight, class-1, class-2 and class-3 obesity respectively. In all four groups, there was a small, stable upwards trajectory in BMI (mean BMI increase of 1.06 kg/m2 (± 3.8)). Compared with overweight individuals, class-3 obese individuals had hazards ratios (HR) of 3.26 (95% CI 2.98–3.57) for heart failure, HR of 2.72 (2.58–2.87) for all-cause mortality and HR of 3.31 (2.84–3.86) for CVD-related mortality, after adjusting for baseline demographic and cardiovascular risk factors. Conclusion The majority of adults who are overweight or obese retain their degree of overweight or obesity over the long term. Individuals with stable severe obesity experience the worst heart failure, CVD and mortality outcomes. These findings highlight the high cardiovascular toll exacted by continuing failure to tackle obesity.


2005 ◽  
Vol 25 (2) ◽  
pp. 247-265 ◽  
Author(s):  
E. Borghi ◽  
M. de Onis ◽  
C. Garza ◽  
J. Van den Broeck ◽  
E. A. Frongillo ◽  
...  

2006 ◽  
Vol 9 (5) ◽  
pp. 644-650 ◽  
Author(s):  
NP Steyn ◽  
JH Nel ◽  
G Nantel ◽  
G Kennedy ◽  
D Labadarios

AbstractObjectiveTo assess whether a food variety score (FVS) and/or a dietary diversity score (DDS) are good indicators of nutrient adequacy of the diet of South African children.MethodsSecondary data analyses were undertaken with nationally representative data of 1–8-year-old children (n = 2200) studied in the National Food Consumption Study in 1999. An average FVS (mean number of different food items consumed from all possible items eaten) and DDS (mean number of food groups out of nine possible groups) were calculated. A nutrient adequacy ratio (NAR) is the ratio of a subject's nutrient intake to the estimated average requirement calculated using the Food and Agriculture Organization/World Health Organization (2002) recommended nutrient intakes for children. The mean adequacy ratio (MAR) was calculated as the sum of NARs for all evaluated nutrients divided by the number of nutrients evaluated, expressed as a percentage. MAR was used as a composite indicator for micronutrient adequacy. Pearson correlation coefficients between FVS, DDS and MAR were calculated and also evaluated for sensitivity and specificity, with MAR taken as the ideal standard of adequate intake. The relationships between MAR and DDS and between anthropometric Z-scores and DDS were also evaluated.ResultsThe children had a mean FVS of 5.5 (standard deviation (SD) 2.5) and a mean DDS of 3.6 (SD 1.4). The mean MAR (ideal = 100%) was 50%, and was lowest (45%) in the 7–8-year-old group. The items with the highest frequency of consumption were from the cereal, roots and tuber group (99.6%), followed by the ‘other group’ (87.6%) comprising items such as tea, sugar, jam and sweets. The dairy group was consumed by 55.8%, meat group by 54.1%, fats by 38.9%, other vegetables by 30.8%, vitamin-A-rich by 23.8%, other fruit by 22%, legumes and nuts by 19.7% and eggs by 13.3%. There was a high correlation between MAR and both FVS (r = 0.726; P < 0.0001) and DDS (r = 0.657; P < 0.0001), indicating that either FVS or DDS can be used as an indicator of the micronutrient adequacy of the diet. Furthermore, MAR, DDS and FVS showed significant correlations with height-for-age and weight-for-age Z-scores, indicating a strong relationship between dietary diversity and indicators of child growth. A DDS of 4 and an FVS of 6 were shown to be the best indicators of MAR less than 50%, since they provided the best sensitivity and specificity.ConclusionEither FVS or DDS can be used as a simple and quick indicator of the micronutrient adequacy of the diet.


Nutrients ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 3146
Author(s):  
Catherine Schwinger ◽  
Ranadip Chowdhury ◽  
Shakun Sharma ◽  
Nita Bhandari ◽  
Sunita Taneja ◽  
...  

High-quality protein has been associated with child growth; however, the role of the amino acid cysteine remains unclear. The aim was to measure the extent to which plasma total cysteine (tCys) concentration is associated with anthropometric status in children aged 6–30 months living in New Delhi, India. The study was a prospective cohort study including 2102 children. We calculated Z-scores for height-for-age (HAZ), weight-for-height (WHZ), or weight-for-age (WAZ) according to the WHO Child Growth Standards. We used multiple regression models to estimate the association between tCys and the anthropometric indices. A high proportion of the children were categorized as malnourished at enrolment; 41% were stunted (HAZ ≤ −2), 19% were wasted (WHZ ≤ −2) and 42% underweight (WAZ ≤ −2). Plasma total cysteine (tCys) was significantly associated with HAZ, WHZ and WAZ after adjusting for relevant confounders (p < 0.001). Low tCys (≤25th percentile) was associated with a decrease of 0.28 Z-scores for HAZ, 0.10 Z-scores for WHZ, and 0.21 Z-scores for WAZ compared to being >25th percentile. In young Indian children from low-to-middle socioeconomic neighborhoods, a low plasma total cysteine concentration was associated with an increased risk of poor anthropometric status.


2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Angela KC ◽  
Andrew Thorne-Lyman ◽  
Binod Shrestha ◽  
Swetha Manohar ◽  
Patrick Webb ◽  
...  

Abstract Objectives Estimate the national and agro-ecological zonal prevalence of preschool child undernutrition and review temporal trends in the prevalence of undernutrition. Methods In 2016, we conducted the last in a series of 3 (also 2013 and 2014) nationally representative, annual, same-season, mixed-longitudinal nutrition surveys – PoSHAN Community Studies – in the same 21 Village Development Committees sampled across the Mountains, Hills and Tarai of Nepal. Height/length and weight measurements of 5479 children < 5 years were converted to z-scores of height-for-age (HAZ) and weight-for-height (WHZ) based on World Health Organization growth standards. Cut-offs of < -2 z-scores of HAZ and WHZ were applied to define stunting and wasting, respectively. Rates of stunting and wasting were compared to four Demographic and Health Surveys of Nepal (NDHS) from 2001–2016. Annual rates of decline in stunting and wasting were calculated. Results Preschool stunting and wasting rates from PoSHAN in 2016 were 34% [95% CI: 29.5 to 38.9%] and 13.7% [11.0 to 16.9%], similar to those observed in the 2016 NDHS: 35.8% [33.5 to 38.3%] and 9.7% [8.4 to 11.1%], respectively. Stunting was highest in the Mountains (40.6%), and wasting in the Tarai (18.9%). PoSHAN surveys revealed an annual decrease in the prevalence of stunting of 1.5% from 2013–2016 and 2.3% from 2011–2016, representing a lesser decline than in the earlier period of 2001–2011 (3.3%) (Figure 1 a). In contrast, neither series of surveys has revealed a marked decline in the national prevalence of wasting over the past 15 years (Figure 1 b). Conclusions The rates of stunting and wasting seen in the PoSHAN survey were comparable to other contemporary surveys in 2016 and suggest that the current rate of decline is inadequate to meet Nepal's 2025 World Health Assembly (WHA) target of reducing stunting to 26.5%. However, wasting has changed very little, threatening the potential to reach Nepal's national WHA target of 5%. Funding Sources Funded by USAID Feed the Future Nutrition Innovation Lab, with assistance from Sight and Life and The Gates Foundation. Supporting Tables, Images and/or Graphs


Author(s):  
Qianling Tian ◽  
Xiao Gao ◽  
Tingting Sha ◽  
Qiong He ◽  
Gang Cheng ◽  
...  

Background: At present, whether to use the World Health Organization’s (WHO) growth standards or native growth standards to assess the nutritional status in a given population is unclear. This study aimed to compare the differences between the WHO’s growth standards and China’s growth standards in assessing the nutritional status of children aged 0~36 months. Methods: We used z-scores to evaluate the nutritional status of children. The weight-for-age z-scores (WAZs), length/height-for-age z-scores (LAZ/HAZs), and weight-for-length/height z-scores (WLZ/WHZs) were calculated using the WHO’s growth standards and China’s growth standards. MeNemar’s test was used to compare the nutritional status of children. Results: The results in this study showed that there were differences between the WHO’s standards and China’s standards in assessing children’s nutritional status except for stunting and obesity. The prevalence of underweight assessed using China’s standards was higher than when using the WHO’s standards (except when 3 and 36 months old). The prevalence of wasting was significantly higher when assessed using China’s standards than when using the WHO’s standards from 12 to 36 months. The prevalence of overweight was higher when assessed using the WHO’s standards from 3 to 8 months. Conclusions: Both the WHO’s and China’s growth standards are useful measures in assessing children’s nutritional status but with key significant differences. Therefore, caution should be taken in selecting appropriate measures in a given population.


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