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Figure 2 Acute Malnutrition of Lowland by ageFigure 3 Acute Malnutrition of Mountain by age4.2.4. Chronic MalnutritionThe stunting rate (HAZ) is a measure of chronic malnutrition while underweight (WAZ) ratemeasures both chronic and acute malnutrition. Both underweight and stunting rates rely onaccurate age records. In this survey, accurate records of a child’s age were not available forverification in almost half of the children (48% children in Lowland and 46% children inMountain had no exact birthday). Age estimation based on mother recall may not be accuratealthough a calendar of events was used to estimate the child’s age. Therefore, it should benoted that the stunting and underweight rates recorded in the survey might be subjected tomothers recall bias and care should be taken when interpreting the results. As shown in Table10, the stunting rate was 35.1% in Lowland community and 46.9% in Mountainous children. Theprevalence of global chronic malnutrition was not statistically different between boys and girls.Table 10: Prevalence of Chronic Malnutrition/Stunting (6-59 months) by survey area and by sex, with95% confidence intervalsLowland (%) Mountain (%)All Boys Girls All Boys GirlsGlobal Chronic Malnutrition(H/A