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PEDIATRIC OBESITY: A HUGE PROBLEM IN THE USA. William J. Cochran, MD Department of Pediatric GI & Nutrition Geisinger Clinic. WHY WORRY ABOUT PEDIATRIC OBESITY?. Pediatric obesity is of epidemic proportion. Pediatric obesity is the most common chronic disease of childhood.
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PEDIATRIC OBESITY: A HUGE PROBLEM IN THE USA William J. Cochran, MD Department of Pediatric GI & Nutrition Geisinger Clinic
WHY WORRY ABOUT PEDIATRIC OBESITY? • Pediatric obesity is of epidemic proportion. • Pediatric obesity is the most common chronic disease of childhood.
DEFINITION OF PEDIATRIC OBESITY • Overweight / At risk of overweight • BMI 85-95% • Obese / Overweight • BMI >95%
OLDER DEFINITIONS OF OBESITY Weight for height >95% Actual weight >120% ideal body weight Super obese >140% of ideal body weight
RACIAL DIFFERENCES IN PEDIATRIC OBESITY • Non-Hispanic white 12.3% • African American 21.5% • Hispanic 21.8%
WHY WORRY ABOUT PEDIATRIC OBESITY? • Is pediatric obesity a real problem or just a cosmetic issue?
WHY WORRY ABOUT PEDIATRIC OBESITY? • Adult obesity is clearly associated with numerous health problems. • Type II DM • CAD • Hypertension • Cancer • Joint disease • Gallbladder disease • Pulmonary disease
Significant risk of childhood obesity to persist into adulthood. WHY WORRY ABOUT PEDIATRIC OBESITY?
WHY WORRY ABOUT PEDIATRIC OBESITY? • Economic impact • The estimated cost of obesity in the US in 2002 was $117 billion. • The hospital cost of pediatric obesity is also increasing. • 1979: $35 million • 1999 $127 million
IMPACT OF CHILDHOOD OBEISTY IN ADULTHOOD Childhood obesity has significant adverse effects on health in adulthood • Hoffmans 1988: Dutch males, increased mortality after 32 years in obese vs. lean adolescent males. • Mossberg 1989:Swedish study, increased mortality after 40 years in obese vs nonobese children
IMPACT OF CHILDHOOD OBESITY IN ADULTHOOD • Harvard Growth Study: • Two fold increased all cause mortality in obese vs nonobese adolescents as adults • 2 fold increase in CAD mortality • Increased risk of colon cancer in males • Increased risk of arthritis in females • The association of adverse effects on adult health may be independent of obesity in adulthood
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Psychosocial • Most common complication of pediatric obesity • Increased rates of depression • Poor self esteem • Obese adolescents negative self image may carry over into adulthood
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Societal discrimination • Obese females have lower acceptance rate at colleges than non-obese females • National Longitudinal Survey of Youth: obese adolescent females as young adults had less education, less income, higher poverty rate, decreased rate of marriage vs nonose females
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Endocrine • Non-insulin-dependent diabetes mellitus • Pinhas-Hamiel 1994 • The incidence of NIDDM has increased 10 fold • 92% of these had a BMI >90% • Geisinger weight management program • 60% have insulin resistance • 10% have fasting insulin level > 100 (Nl <17) • 1% have type II DM
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Endocrine • Increased linear growth • Advanced bone age • Earlier onset of puberty • Acanthosis nigricans
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Hypertension • Primary hypertension uncommon in childhood • 60% of children diagnosed with hypertension are obese • Use pediatric standars • Geisinger weight management program • 45% have hypertension
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Hyperlipidemia • The atherosclerotic process begins in childhood. • Pediatric obesity is associated with increased cholesterol, LDL-cholesterol, triglyceride levels and lower levels of HDL-cholesterol • Geisinger weight management program • 45% have hypercholesterolemia
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Hepatic steatosis • Hepatic steatosis present in 25-83% of obese children • 10-15% of obese children have elevated liver enzymes: steatohepatitis or non-alcoholic fatty liver disease • Rashid: 83% of children with steatohepatitis were obese. 75% had fibrosis-cirrhosis
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Orthopedic • Slipped capital femoral epiphysis • 30-50% are obese • Blount’s disease (Tibia vara) • 70% are obese • Neurologic • Pseudotumor cerebri
CHILDHOOD COMPLICATIONS OF PEDIATRIC OBESITY • Respiratory • Sleep disorder in 1/3 • Sleep apnea: 7% of obese, 1/3 if >150% & breathing difficulties • Hypoventilation syndrome • Gastrointestinal • Cholelithiasis • 50% of cases of cholecystitis in adolescents are obese
ETIOLOGY OF PEDIATRIC OBESITY • Etiology is multifactorial • Interaction of genetics and environment • Energy imbalance • Energy In = Energy Used + Energy Stored • For every extra 100 calories consumed per day one will put on 10 pounds per year
ETIOLOGY OF OBESITY • Caloric intake has increased • Eating unsupervised, lack of family meals • Eating at multiple sites • Eating out / take out food • Beverages • Calorically dense food
ETIOLOGY OF OBESITY • Physical activity has decreased • Schools with less physical education • After school programs • Safety concerns • Convenience activities • Increased sedentary activities: TV, computer, video games
ETIOLOGY OF OBESITY • Physical activity • TV / video games • More time spent watching TV less time for physical activity: average 2.5 hours / day, 20%>5 hours / day • BMI and obesity associated with higher amount of time spent watching TV • Higher cholesterol levels associated with greater amount of time spent watching TV • 40% of children 1-5 years have TV in their bedroom
TREATMENT OF PEDIATRIC OBESITY • Weight management programs are available and can be effective • High rates of recurrence • Prevention is the key
PREVENTION: PRECONCEPTION • Prevention starts prior to conception • Obese adolescents have an 80% probability of being obese as an adult • Today's adolescents are tomorrows parents • Parents act as role models for their children • The risk of obesity in a child born to obese parents is significantly increased • Need to educate and intervene at this time to help prevent obesity is subsequent generation
PREVENTION: POST CONCEPTION • Routine prenatal care • Advocate normal weight gain during the pregnancy • LGA infants and infants of diabetic mothers have higher rates of subsequent obesity • SGA infants also at higher risk • Hediger ML et: Pediatrics104:e33, 1999
PREVENTION: POST CONCEPTION • Promote breastfeeding • Dewey 2003: 8 out of 11 studies noted a lower rate of obesity in children if breastfed vs. formula fed • Bergmann 2003: Longitudinal study of breastfed vs. formula fed infants • BMI the same at birth • BMI at 3 & 6 months > in formula fed vs. breastfed infants • Rate of obesity at 6 years was tripled in formula fed vs. breastfed
PREVENTION OF PEDIATRIC OBESITY • Measure and plot BMI • Only done by 20% of primary care providers • Identify those at risk • Anticipatory guidance • Nutrition • Physical activity • Healthy lifestyles
IDENTIFY THOSE AT RISK • Increasing BMI % • Family history • Risk of obesity 9% if both parents are lean • Risk of obesity 60-80% if both parents are obese • Sibling over weight • High birth weight
IDENTIFY THOSE AT RISK • Lower socioeconomic status • Ethnicity: African-American, Hispanic, Native American • Environmental / social • Both parents work • Little cognitive stimulation • Lack of safe play areas • Family stress
NUTRITION ANTICIPATORY GUIDANCE • Beverages • Encourage water intake • Limit sweet beverages • Juice, juice drinks: 120 calories / 8 oz • No nutritional need for any juice <6 months of age • 1-6 years: 4-6 oz • 7-18 years: 8-12 oz • Discourage free use of box drinks • Discourage continuous access to sippy cups • Soda: 150 calories / 12 oz
NUTRITION ANTICIPATORY GUIDANCE • Eat 5 fruits and vegetables a day • Structured meal and snack time • Do not use food as a reward • Know what the child is eating outside the home: school meals, day care etc.
NUTRITION ANTICIPATORY GUIDANCE • Encourage child’s autonomy in self-regulation of food intake • Parents provide, child decides! • Do not use the clean the plate rule. • Provide choice • Educate parents regarding healthy nutrition • Healthy snacks • Consider using pediatric food pyramid • Portion size: Intake of children >5 years is dependent on how much they are provided • Do not skip meals
ACTIVITY ANTICIPATORY GUIDANCE • Encourage active play for young children • Promote physical activity • Ideal 30-60 minutes per day • Have several types of potential activities • Be physically active with others • Think about activity opportunities • Encourage participation in organized sports
ACTIVITY ANTICIPATORY GUIDANCE • Decrease sedentary activity • Limit TV, video games and computer to 1-2 hours per day • > 2 hours a day associated with higher rates of obesity and hyperlipidemia • Do not have a TV in the child’s room • Children with TVs in bedroom watch more TV
ACTIVITY ANTICIPATORY GUIDANCE • Decrease sedentary activity • Do not use the remote • Exercise on commercials • TV / computer is not a right it is a privilege
BEHAVIORAL ANTICIPATORY GUIDANCE • Encourage parents to act as role models • Nutrition • Activity • Promote parent child interaction • Have special “family time” that is physically active
BEHAVIORAL ANTICIPATORY GUIDANCE • Limit eating out • More calorically dense food • Larger portion sizes • Less intake of fruits and vegetables • $0.51 of every nutrition dollar is spent outside the home
BEHAVIORAL ANTICIPATORY GUIDANCE • Eat as a family • Provides “quality time” • Slows down the eating process • Parents act as role model • Parents monitor intake • Associated with lower fat intake and greater intake of fruits and vegetables
BEHAVIORAL ANTICIPATORY GUIDANCE • Do not eat in front of the TV • Associated with higher intake of fat and salt • Lower intake of fruits and vegetables • Encourages over eating • 60-80% of commercials on during children programs are related to food • Eating without awareness