| childhood obesity [message #31607] |
Mon, 24 November 2025 09:32  |
Hejie Wang
Messages: 19
Registered: July 2024
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I want to assess the overweight and obesity situation among children under 5 years old based on the standards set by the WHO. I will calculate using the hw2 and hw3 data from the DHS survey files in the KR document. The unit of hw2 is kilograms and the unit of hw3 is centimeters. However, when I examined the distribution of hw2 and hw3, I found that many of the data were simply impossible for children aged 5. Why did this happen? How should I calculate?
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| Re: childhood obesity [message #31945 is a reply to message #31623] |
Mon, 27 July 2026 05:10  |
Greanded48
Messages: 1
Registered: July 2026
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The issue is likely related to the DHS data structure rather than actual measurements. In DHS datasets, child height and weight variables often include special codes for missing, implausible, or not measured values, and they may not be stored as simple kg/cm values without recoding. You should first check the DHS recode documentation for the HW2 and HW3 variable definitions, identify and remove invalid codes, and apply the DHS anthropometric flags (such as height-for-age, weight-for-age, and BMI-for-age plausibility criteria). After cleaning the data, calculate overweight and obesity among children under 5 using the WHO Child Growth Standards, usually based on BMI-for-age or weight-for-height z-scores rather than raw weight and height values.
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