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Adapted by the State of California CHDP Nutrition Subcommittee from the online training module: Using the WHO Growth Charts to Assess Growth in the United.

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Presentation on theme: "Adapted by the State of California CHDP Nutrition Subcommittee from the online training module: Using the WHO Growth Charts to Assess Growth in the United."— Presentation transcript:

1 Adapted by the State of California CHDP Nutrition Subcommittee from the online training module: Using the WHO Growth Charts to Assess Growth in the United States Among Children Ages Birth to 2 Years Centers for Disease Control and Prevention, 2012 November 2012 Using the World Health Organization (WHO) Growth Charts to Assess Children from Birth to 2 Years

2 Objectives By the end of this presentation, you will be able to: Describe the new WHO growth chart Understand differences between WHO and CDC growth charts for infants and children 0-2 years Plot on the appropriate growth chart Interpret results and make referrals when appropriate

3 Growth Chart Recommendations for Health Care Providers CDC recommends that health care providers: Use the WHO growth charts for infants and children 0 to 2 years of age Use the CDC growth charts for children ages 2 to 20 years CHDP requires transition to the WHO growth charts by October 2013

4 Child growth is monitored to: –Assess adequacy of nutrition –Identify weight status and potential for obesity –Screen for disease related to abnormal growth Growth charts are the standard tool for interpreting growth WHO Growth Charts for Infants and Children Birth to 24 Months

5 Compare the WHO Growth Standards and the CDC Growth Reference ComparisonWHO Growth ChartCDC Growth Chart Studied populationBreastfed infants and toddlers Breastfed and formula fed infants and toddlers Growth patternHow healthy children SHOULD GROW in ideal conditions How certain groups of children HAVE GROWN in the past Concept of growthA STANDARD by which all children should be compared A REFERENCE does not imply that pattern of growth is optimal

6 Benefits of Using WHO Growth Charts Based on high quality population data Growth charts align with AAP and WIC growth assessment tools and feeding recommendations Supports breastfeeding as optimal nourishment Allows provider to address feeding practices and family environment

7 Mode of feeding Growth in the first 3 months Growth after 3 months BreastfeedingFasterSlower FormulaSlowerFaster Impact of WHO Growth Charts on the Interpretation of Growth Mode of feeding can influence infant growth rate

8 Adapted from Figure 2. Use of World Health Organization and CDC Growth Charts for Children Aged Months in the United States. CDC Morbidity and Mortality Weekly Report (MMWR) Recommendations and Reports 2010; 59(rr09):1-15. Available online at: Breastfed infants grow faster in the first 3 months Breastfed infants grow slower from 3 to 12 months Girls: Birth to 24 months Weight-for-age curves Growth Rate for Breastfed Infant

9 WHO Growth Charts Are Different Fewer infants are below 5 th percentile on Weight-for-age charts Fewer infants are above 95 th percentile on Weight-for-length charts Fewer infants are below 5 th percentile on Weight-for-length charts A similar number of infants are below 5 th percentile on Length-for-age charts

10 Compare the WHO and CDC Growth Prevalence Rates by Age Low weight-for-age*Low length-for-age*High weight-for-length †

11 Recommended Cutoffs WHO Growth Charts - Birth to 24 months % Healthy weight > 98 % High weight-for-length < 2 % Low weight-for-length

12 5 - < 85 % Healthy Weight ≥ 95 % Obese < 5 % Underweight < 95 % Overweight Recommended BMI-for-Age Cutoffs CDC Growth Charts - 2 to 20 Years Use terms “overweight” and “obese” only for children and teens between 2 and 20 that fall in the corresponding %ile ranges

13 WHO Growth Standards Birth to 24 Months Growth Parameters –Weight-for-age –Length-for-age –Weight-for-length –Head circumference-for-age No BMI percentile because this is not a measure used for children younger than 2

14 Boys: Birth to 24 months Head circumference-for-age Weight-for-length Length-for-age Weight-for-age

15 Girls: Birth to 24 months Head circumference-for-age Weight-for-length Length-for-age Weight-for-age

16 Incorporating the WHO Growth Charts Into Your Practice CHDP requires that enrolled providers transition to WHO growth charts by October 2013 Review growth at each health assessment and interpret carefully Understand that an infant will plot differently on the WHO growth chart than on the CDC chart Encourage breastfeeding Review feeding with each health assessment and determine if foods are developmentally appropriate

17 When Growth Deviates from the Norm Check accuracy of your measurements Note that individual growth may not follow a smooth curve Recognize limitations of a single growth percentile value Obtain serial measurements over time If weight-for-length is 98 %, assess fully, follow closely and refer, if needed

18 Case Example Graph George’s Growth George is an 18-month-old boy. George's mother, Rae, works outside the home. George is cared for by his grandmother during the day when Rae is working. George has been formula-fed since birth, and he was around 5 months of age when he began eating solid foods. George has been seen by his health care provider regularly since birth, and his weight and length have been recorded and plotted on the growth chart at each visit.

19 Graph George’s Growth CDC CDC Weight-for-Age Growth Chart WHO WHO Weight-for-Age Growth Chart George

20 Comparing Weight-for-Length CDC CDC Weight-for-Length Growth Chart WHO WHO Weight-for-Length Growth Chart George

21 Moving from WHO to CDC Charts at 2 Years Recumbent length to standing height measurements (difference is approximately 0.8 cm or ¼ inch) Optimally fed study population to a reference population using the general pediatric population WHO weight-for-length to CDC BMI-for-age percentile 5 th - 95 th cutoff values to 2 nd - 98 th cutoff values

22 Possible Changes for an Individual Child at Age 2 Length-for-age percentile may be similar CDC weight-for-age may be lower CDC BMI-for-age percentile may be lower than WHO weight-for-length

23 Develop protocol for weighing and measuring Select appropriate charts for age and gender Record and plot on growth charts Interpret growth indicators Counsel on growth and feeding Support breastfeeding How to Get Started

24 References WHO Growth Chart Trainings CDC Morbidity and Mortality Weekly Report (MMWR) Recommendations and Reports WHO Growth Charts AAP Policy Statement: Breastfeeding and the Use of Human Milk

25 Training and Education Tools CHDP Training Modules –How to Accurately Weight and Measure Children –Using Body Mass Index-for-Age Growth Charts –Counseling the Overweight Child –Promoting Physical Activity –Glucose and Cholesterol Screening Breastfeeding materials Women, Infants and Children Program (WIC) Slides 11 and 12 of this presentation were adapted from the WIC WHO Growth Charts In-Service Training:


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