Overview
Introduction
Recommendations and evidence
Body mass index and obesity screening
- Obesity is classified as:[10]
- Class 1 (BMI ≥95th percentile)
- Class 2 (BMI 120% to 139% of the 95th percentile, or an absolute BMI of ≥35 kg/m² to <40 kg/m², whichever is the lower for age and sex)
- Class 3 (BMI ≥140% of the 95th percentile, or an absolute BMI ≥40 kg/m², whichever is the lower for age and sex).
- Treatment modalities include healthy lifestyle modifications (e.g., dietary changes, increases in physical activity, and decreases in sedentary behaviors), pharmacotherapy, and metabolic/bariatric surgery.[10] While still growing, some overweight children may be able to maintain or reduce their rate of weight gain, thereby allowing normal growth and development while lowering their BMI percentile.
- The US Preventive Services Task Force (USPSTF) recommends referring children with obesity who are 6 years of age and older to intensive counseling and behavioral interventions.[9]
- The AAP and CDC have similar recommendations on counseling for parents of children with obesity and for counseling parents regarding the prevention of obesity in children. These include: maintaining focus on health rather than weight; providing healthy foods; role-modeling healthy eating; promoting physical activity; and limiting screen time to 2 hours per day. The AAP and CDC also suggest considering the risks of restricting foods because restriction can decrease the child's ability to self-regulate. Food insecurity may also be contributing to a child's obesity. Depending on BMI category, age, and family history, laboratory evaluation may be needed for several obesity-related conditions that often have no signs or symptoms, including dyslipidemia, diabetes, and nonalcoholic fatty liver disease.[1]
- When discussing weight, person-first language is recommended (e.g., child with obesity rather than 'obese child') with avoidance of weight bias and stigma.[13]
- The USPSTF recommends that clinicians screen children ages 6 years and older for obesity and offer or refer them to intensive counseling and behavioral interventions to promote improvements in weight status.[9] Moderate- to high-intensity programs were found to yield modest weight changes. Limited evidence suggests that these improvements can be sustained over the year after treatment. The harms of screening were judged to be minimal.[9]
- One Cochrane review found moderate-certainty evidence that physical activity interventions had a small effect on BMI in children 6 to 12 years of age, but no effect on BMI z-score. There was high-certainty evidence that dietary interventions among this age group did not decrease BMI or BMI z-score. These interventions were primarily delivered in schools.[14]
Blood pressure
- The AAP also recommends more frequent screening and/or consideration of referral for ambulatory blood pressure monitoring for children with risk factors for hypertension, such as obesity, chronic kidney disease, coarctation of the aorta, or diabetes.[15]
- The USPSTF concludes that evidence is insufficient regarding whether routine screening for hypertension in children and adolescents is beneficial in reducing the risk of cardiovascular disease.[16] The USPSTF notes that there is an association between childhood and adult hypertension, but the proportion of children with primary hypertension that will persist into adulthood is unknown. The evidence regarding the relationship between hypertension in childhood and intermediate outcomes (e.g., atherosclerosis) in both childhood and adulthood is inconsistent. No studies are available regarding the effectiveness of screening for the prevention of adverse cardiovascular health outcomes in adulthood.[16]
- The USPSTF did not identify any studies of screening for secondary hypertension in asymptomatic children.[16]
Anticipatory guidance
- Suggestions for safety counseling discussions include: car seats and booster seats; seatbelt use by whole family; childproofing; poisoning avoidance; fall avoidance; outdoor safety; pedestrian safety; gun awareness; smoke and carbon monoxide detectors; bicycle safety and helmet use; and sexual abuse prevention.[1]
- Suggestions for counseling on other issues include: establishing routines; oral health advice; dealing with temper tantrums; sleep issues; language promotion; toilet training; temperament and behavior; appropriate discipline practices; limiting screen time; school and preschool issues; monitoring computer use; literacy promotion and regular reading to children; the importance of developmentally appropriate play, encouraging physical activity; healthy eating; and tobacco, alcohol, and drug-use prevention.[1] [19] [20] [21] [22]
- There is very limited evidence for most brief, office-based counseling. Some benefits have been found for certain injury-prevention counseling (seatbelt and car seat use, bicycle helmet use, safe road-crossing behavior, smoke alarm use, safe water temperature), although the most effective methods have involved repeated and intense interventions.[2]
- Of the studies that are available, many involve repeated interventions or multiple components. A randomized trial of four videos shown at well-child visits designed to improve parental understanding of development resulted in increased cognitive growth fostering behaviors at six months of age.[23] One randomized controlled trial studied office-based, multicomponent interventions for increasing seatbelt and bicycle helmet use, keeping guns in locked storage, and decreasing alcohol and tobacco use.[24] A significant improvement was seen only for bicycle helmet use.
- Evidence to support the importance of play and regular reading in promoting cognitive, language, self-regulation, and social-emotional skills in children is accumulating in a number of areas: enhancing parent engagement; encouraging safe, stable, and nurturing relationships; facilitating the development of a variety of competencies, including executive functioning skills; and improving the directions children take in life.[25] [26] [27] Reach Out and Read, which combines anticipatory guidance with provision of a book to young children, was shown to improve receptive and expressive language in young children.[28] Reach Out and Read
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