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Prevalence of underweight (BMI < 18.5 kg/m2) and overweight (BMI ≥ 25 kg/m2) in 2000 and 2005 by ecological region. RRD: Red river delta, NE: Northeast, NW: Northwest, NCC: North Central Coast, SCC: South Central Coast, WH: West Highland, SE: Southeast, MRD: Mekong river delta.
