Breakfast Eating Habits and Lifestyle Behaviors among Saudi Primary School Children Attending Public Versus Private Schools

We investigated breakfast eating habits and lifestyle behaviors among Saudi school children attending public versus private schools. A random sample of 1149 children (girls: 54.4%) from public and private schools was selected from elementary schools using the multistage stratified cluster method. Measurements included body weight, height, body mass index (BMI), and self-reported questionnaires filled by the child’s parents. There was no significant (p = 0.44) difference in the prevalence of breakfast intake between children attending public (20.6%) versus private (19.4%) schools. However, there was a gender by school type interactions in breakfast intake frequency, as boys in private but not in public schools had significantly (p = 0.006) higher (26.3%) daily breakfast intake than girls (13.3%). Over 56% of the children ate and drank from the school canteen, and impacting factors on children’s choices were children’s desire, food taste, and parental influence. More parents of children in private (12.1%) than in public (6.9%) schools were satisfied with the food in the school canteen. Younger age (aOR = 0.889, 95% CI = 0.815–0.970, p = 0.008), higher father education (aOR = 1.380, 95% CI = 1.130–1.686, p = 0.002), family income (aOR = 1.227, 95% CI = 1.005–1.498, p = 0.044), and insufficient sleep duration (aOR = 0.740, 95% CI = 0.553–0.990, p = 0.042) were significantly associated with being in a private school. Furthermore, no significant differences, when adjusted for socio-demographic factors, appeared in breakfast intake or overweight/obesity relative to school type. Interventions to improve daily breakfast consumption and lifestyle behaviors of Saudi children are warranted

Anthropometric, Familial- and Lifestyle-Related Characteristics of School Children Skipping Breakfast in Jeddah, Saudi Arabia

Breakfast is a vital meal that provides children with important nutrients and energy. This study examined the anthropometric, familial- and lifestyle-related characteristics of school children skipping breakfast. A total of 1149 children (boys: 45.5%), 6 to 12 years old (mean and SD: 9.3 ± 1.7 years), were randomly selected from elementary schools in Jeddah. Weight and height were measured. Breakfast eating frequency, socio-demographics, and lifestyle behaviors were assessed using a specifically designed self-report questionnaire reported by the parents. Nearly 80% of the children skipped daily breakfast at home with no significant age or gender differences. The most common reasons for skipping breakfast at home included not feeling hungry and waking up late for school. Fried egg sandwiches and breakfast cereals were most frequently consumed for breakfast. Strong parental support for breakfast as the main daily meal was significantly associated with daily breakfast intake. Logistic regression analyses, adjusted for age, gender, and socio-demographics, revealed that paternal education (aOR = 1.212, 95% CI = 1.020–1.440, p = 0.029), maternal education (aOR = 1.212, 95% CI = 1.003–1.464, p=0.046), insufficient sleep (aOR = 0.735, 95% CI = 0.567–0.951, p = 0.019), and BMI <25 kg/m2 (aOR = 1.333, 95% CI = 1.015–1.752, p = 0.039) were significantly associated with breakfast intake. The findings have implications for children’s health and school performance. Concerted effort is required to promote breakfast consumption among Saudi children

Analysis of carbonate and hydrogen carbonate in seawater and brines

The practice common in desalination plants of determining carbonate by titration of a sample of water with acid to pH 8.3 or 8.1, and total alkalinity by titration to pH 4.5, leads to an underestimation of the amount of carbonate present in high ionic-strength samples, which in turn may lead to erroneous assessments of scaling potential. Well-established empirical equations for the dissociation constants of carbonic acid in seawater as a function of salinity and temperature were used to estimate the proportion of each carbonate species present in samples of Arabian Gulf seawater, desalination concentrate, and nanofiltration reject. Samples were then titrated and inflection points identified associated with the protonation of the carbonate ion and the protonation of the hydrogen carbonate ion. Colorimetric titration gave end-points consistent with these inflection points and with the equations of Millero et al. Standard test method ASTM D3875-15 gives values of close to zero for the carbonate concentration in samples which were found to contain up to 40% of their inorganic carbon as carbonate according to the other methods of estimation. Thus ASTM D3875-15 is not suitable for seawater or desalination brines