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Table 3 Predictors of academic performance of grade at primary schools of Meskan District 2016

From: Chronic undernutrition (stunting) is detrimental to academic performance among primary schools of adolescent children: a randomized cross sectional survey in Southern Ethiopia

Variables Univariate linear regression Multivariable linear regression
β 95% CI p-value β 95% CI p-value
Age in years 0.070 − 0.206 1.145 0.173     
Sex 0.054 − 0.795 2.638 0.292     
Place of residence − 0.262 − 6.775 − 3.088 0.000 − 0.119 − 3.541 − 0.927 0.001
Household size 0.076 − 0.108 0.761 0.141     
HH wealth index score 0.068 − 0.283 1.427 0.189     
Iodized salt Level 0.060 − 0.274 1.061 0.247     
Dietary diversity score 0.130 0.135 1.055 0.011 0.025 − 0.196 0.422 0.473
Food frequency − 0.041 − 0.240 0.102 0.428     
Class rank − 0.738 − 0.419 − 0.348 0.000 − 0.820 − 0.470 − 0.381 0.000
Grade repetition 0.349 6.805 11.909 0.000 − 0.236 − 8.977 − 3.699 0.000
Absenteeism (class) − 0.245 − 1.728 − 0.739 0.000 − 0.111 − 0.975 − 0.138 0.009
Height in cm 0.045 − 0.053 0.137 0.388     
Stunting (HAZ) 0.004 − 0.712 0.769 0.940 − 0.055 − 0.892 0.094 0.112