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Table 3 Bivariate analyses between schoolchildren’s malnutrition and its interval/ratio background variables

From: Risk factors for malnutrition among school-aged children: a cross-sectional study in rural Madagascar

Background variable Stunting (N = 393) Underweight (N = 382) Thinness (N = 393)
(+) Stunted (−) Not stunted P-valuea (+) Under-weight (−) Not underweight P-valuea (+) Thin (−) Not thin P-valuea
Mean s.d. Mean s.d. Mean s.d. Mean s.d. Mean s.d. Mean s.d.
v47: Age [year] 7.6 1.65 7.0 1.05 < 0.001** 7.4 1.12 6.8 0.99 < 0.001** 7.9 1.95 7.1 1.20 0.004**
v48: Total number of household members [person] 5.9 1.82 5.2 1.65 < 0.001** 5.8 1.73 5.2 1.66 < 0.001** 6.3 2.03 5.3 1.67 0.002**
v48: Access to source of water by foot [min] b 3.3 3.32 3.7 3.28 0.163 3.4 3.41 3.7 3.28 0.205 3.6 2.68 3.6 3.37 0.454
v50: Access to the nearest health facility [min] 34.6 14.3 35.9 19.9 0.485 35.6 16.3 35.1 18.7 0.278 39.1 18.4 35.0 18.1 0.173
v51: Household dietary diversity score (HDDS) [pt] c 6.1 1.42 6.3 1.27 0.066 6.0 1.35 6.4 1.29 0.021* 6.2 1.49 6.3 1.31 0.851
  1. *P < 0.05
  2. **P < 0.01
  3. aMann-Whitney U test
  4. bThe number of minutes spent reaching a water source was measured by allowing an enumerator to walk
  5. cHousehold Dietary Diversity Score (HDDS) is the score ranging from 0 (min) to 12 (max), which is calculated by summing up the number of food groups consumed during previous day (24 h) [21]