Developing prediction equations and a mobile phone application to identify infants at risk of obesity.

BACKGROUND: Advancements in knowledge of obesity aetiology and mobile phone technology have created the opportunity to develop an electronic tool to predict an infant's risk of childhood obesity. The study aims were to develop and validate equations for the prediction of childhood obesity and integrate them into a mobile phone application (App). METHODS AND FINDINGS: Anthropometry and childhood obesity risk data were obtained for 1868 UK-born White or South Asian infants in the Born in Bradford cohort. Logistic regression was used to develop prediction equations (at 6 ± 1.5, 9 ± 1.5 and 12 ± 1.5 months) for risk of childhood obesity (BMI at 2 years >91(st) centile and weight gain from 0-2 years >1 centile band) incorporating sex, birth weight, and weight gain as predictors. The discrimination accuracy of the equations was assessed by the area under the curve (AUC); internal validity by comparing area under the curve to those obtained in bootstrapped samples; and external validity by applying the equations to an external sample. An App was built to incorporate six final equations (two at each age, one of which included maternal BMI). The equations had good discrimination (AUCs 86-91%), with the addition of maternal BMI marginally improving prediction. The AUCs in the bootstrapped and external validation samples were similar to those obtained in the development sample. The App is user-friendly, requires a minimum amount of information, and provides a risk assessment of low, medium, or high accompanied by advice and website links to government recommendations. CONCLUSIONS: Prediction equations for risk of childhood obesity have been developed and incorporated into a novel App, thereby providing proof of concept that childhood obesity prediction research can be integrated with advancements in technology.

"So they believe that if the baby is sick you must give drugs " The importance of medicines in health-seeking behaviour for childhood illnesses in urban South Africa.

A mixed method approach was used to investigate the treatment of childhood illnesses in Johannesburg and Soweto. In 2004, in-depth interviews were held with caregivers (n = 5), providers of traditional (n = 6) and Western (n = 6) health care, as well as 5 focus groups with black caregivers of children under 6 years. An utilisation-based survey was conducted with 206 black caregivers of children under 6 years of age at 1 public clinic in Soweto (n = 50), 2 private clinics (n = 50) in Johannesburg, 2 public hospitals (n = 53) from Johannesburg and Soweto and 2 traditional healers (n = 53) from Johannesburg and Orange Farm, an informal settlement on the outskirts of Johannesburg. Caregivers reported how they would respond to 4 common child health problems. Home treatments would be a common first resort particularly for diarrhoea (79%, mostly salt and sugar solution) and constipation (53%). In the case of constipation, the spuit [enema] was cited as a particularly effective home treatment method, particularly amongst TMP patients. Approximately 50% of caregivers would access a health care provider as a first resort for coughs. OTC medicines are commonly used for fever (63%), less-so for coughs (37%). Overall, higher SES respondents would be more likely to use over-the-counter (OTC) medicines and less likely than other groups to use home treatments. Shortages of medicines at clinics and caregiver beliefs about the efficacy of medicines affect health-care seeking behaviour. Medicines are not always used as intended or according to instructions and some products such as household detergents may be used medicinally. As well as the need for improving facility-readiness for delivering IMCI (Integrated Management of Childhood Illnesses), the patient-provider relationship is instrumental in improving the treatment of childhood illnesses.

The prevalence of sedentary behavior and physical activity in leisure time: A study of Scottish adolescents using ecological momentary assessment.

OBJECTIVE: To report time and prevalence of leisure time sedentary and active behaviors in adolescents. METHOD: Cross-sectional, stratified, random sample from schools in 14 districts in Scotland, 2002-03, using ecological momentary assessment (n=385 boys, 606 girls; mean age 14.1 years; range 12.6-16.7 years). This is a method of capturing current behavioral episodes. We used 15 min time intervals. RESULTS: Television viewing occupied the most leisure time. The five most time consuming sedentary activities occupied 228 min per weekday and 396 min per weekend day for boys, and 244 min per weekday and 400 min per weekend day for girls, with TV occupying one-third to one-half of this time. In contrast, 62 min was occupied by active transport and sports/exercise per weekday and 91 min per weekend day for boys, with 55 min per weekday and 47 min per weekend day for girls. A minority watched more than 4 h of TV per day, with more at weekends. Other main sedentary behaviors for boys were homework, playing computer/video games, and motorised transport and, for girls, homework, motorised transport, and sitting and talking. CONCLUSION: Scottish adolescents engage in a variety of sedentary and active behaviors. Research into sedentary behavior must assess multiple behaviors and not rely solely on TV viewing.

Stuips, spuits and prophet ropes: the treatment of abantu childhood illnesses in urban South Africa.

With a paucity of data on health-seeking behaviour for childhood illnesses in urban South Africa, a mixed method approach was used to investigate the treatment of abantu childhood illnesses in Johannesburg and Soweto between March and June 2004. In-depth interviews were held with caregivers (n=5), providers of traditional (n=6) and Western (n=6) health care, as well as five focus groups with caregivers. A utilisation-based survey was conducted with 206 black African caregivers of children under 6 years of age from one public clinic in Soweto (n=50), two private clinics in Johannesburg (50 caregivers in total), two public hospitals from Johannesburg and Soweto (53 caregivers in total) and two traditional healers from Johannesburg and Orange Farm (53 caregivers in total), an informal settlement on the outskirts of Johannesburg. The symptoms of several childhood abantu health problems, their treatment with traditional, church and home remedies, and influences on such patterns of resort are described. Despite free primary health care for children under 6 years, the pluralistic nature of health-seeking in this urban environment highlights the need for community and household integrated management of childhood illnesses and a deeper understanding of how symptoms may be interpreted and treated in the context of the local belief system.