scholarly journals Anemia incidence and persistence in low‐income US preschool children

2006 ◽  
Vol 20 (4) ◽  
Author(s):  
Sarah Cusick ◽  
Mary Cogswell ◽  
Zuguo Mei
2010 ◽  
Vol 20 (4) ◽  
pp. 465-478 ◽  
Author(s):  
Cayce C. Hughes ◽  
Susan N. Sherman ◽  
Robert C. Whitaker

2014 ◽  
Vol 25 (6) ◽  
pp. 815-840 ◽  
Author(s):  
Rebecca J. Bulotsky-Shearer ◽  
Elizabeth R. Bell ◽  
Tracy M. Carter ◽  
Sandy L. R. Dietrich

2020 ◽  
Vol 32 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Catherine Draper ◽  
Simone A Tomaz ◽  
Caylee J Cook ◽  
Sasha S Jugdav ◽  
Candice Ramsammy ◽  
...  

Background: The International Study of Movement Behaviours in the Early Years, SUNRISE, was initiated to assess the extent to which young children meet movement behaviour guidelines (physical activity, sedentary behaviour, screen time, sleep). Objective: The South African SUNRISE pilot study assessed movement behaviours in preschool children from two low-income settings, and associations between these movement behaviours, adiposity, motor skills and executive function (EF). Methods: Preschool child/parent pairs (n = 89) were recruited from preschools in urban Soweto and rural Sweetwaters. Height and weight were measured to assess adiposity. Physical activity was assessed using accelerometers while sedentary behaviour, screen time and sleep were assessed via parent report. Fine and gross motor development were measured using the Ages and Stages Questionnaire-3, and EF was assessed using the Early Years Toolbox. Results: The proportion of children meeting the physical activity guideline was 84% , 66% met the sleep guideline ,48% met the screen time guideline , and 26% met all three guidelines. Rural children were more active, but spent more time on screens compared to urban children. Most children were on track for gross (96%) and fine motor (73%) development, and mean EF scores were in the expected range for all EF measures. EF was negatively associated with screen time, and gross motor skills were positively associated with physical activity. Conclusion: The South African SUNRISE study contributes to the growing literature on 24-hour movement behaviours in SA preschool children, and highlights that these behaviours require attention in this age group.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Dale E. Rae ◽  
Simone A. Tomaz ◽  
Rachel A. Jones ◽  
Trina Hinkley ◽  
Rhian Twine ◽  
...  

Abstract Background The extent to which income setting or rural and urban environments modify the association between sleep and obesity in young children is unclear. The aims of this cross-sectional observational study were to (i) describe and compare sleep in South African preschool children from rural low-income (RL), urban low-income (UL) and urban high-income (UH) settings; and (ii) test for associations between sleep parameters and body mass index (BMI). Methods Participants were preschoolers (5.2 ± 0.7y, 49.5% boys) from RL (n = 111), UL (n = 65) and UH (n = 22) settings. Height and weight were measured. Sleep, sedentary behaviour and physical activity were assessed using accelerometery. Results UL children had higher BMI z-scores (median: 0.39; interquartile range: − 0.27, 0.99) than the UH (− 0.38; − 0.88, 0.11) and RL (− 0.08; − 0.83, 0.53) children (p = 0.001). The UL children had later bedtimes (p < 0.001) and wake-up times (p < 0.001) and shorter 24 h (p < 0.001) and nocturnal (p < 0.001) sleep durations than the RL and UH children. After adjusting for age, sex, setting, SB and PA, for every hour less sleep obtained (24 h and nocturnal), children were 2.28 (95% CI: 1.28–4.35) and 2.22 (95% CI: 1.27–3.85) more likely, respectively, to belong to a higher BMI z-score quartile. Conclusions Shorter sleep is associated with a higher BMI z-score in South African preschoolers, despite high levels of PA, with UL children appearing to be particularly vulnerable.


2016 ◽  
Vol 57 (1) ◽  
pp. 113-130 ◽  
Author(s):  
Francesca Adler-Baeder ◽  
Chelsea Garneau ◽  
Brian Vaughn ◽  
Julianne McGill ◽  
Kate Taylor Harcourt ◽  
...  

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