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Table 1 Operational definitions of stunting

From: Prevalence and associated factors for stunting among 6–12 years old school age children from rural community of Humbo district, Southern Ethiopia

S.No Variable Z – Scores
1. Stunting Below minus two (< − 2 Z score) of the reference population
2. Moderate stunting Below minus two (< −2 Z score and > or = to − 3 Z score) of the reference population
3. Severe stunting Below minus three (<− 3 Z score) of the reference population