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Table 4 Interaction between WASH related variables for childhood undernutrition (n = 2320)

From: Water, sanitation and hygiene practices associated with improved height-for-age, weight-for-height and weight-for-age z-scores among under-five children in Nepal

 Height-for-ageWeight-for-heightWeight-for-age
Improved sanitation availabilityaWith water purificationWithout water purificationp -value for interactionWith water purificationWithout water purificationp -value for interactionWith water purificationWithout water purificationp-value for interaction
0.44 (−0.55, 1.43)0.21 (−0.06, 0.48)0.280.31 (−0.53, 1.15)0.20 (− 0.04, 0.44)0.550.67 (− 0.11, 1.45)0.29 (0.11, 0.47)**0.25
Water purificationbWith soap and waterWithout soap and water With soap and waterWithout soap and water With soap and waterWithout soap and water 
0.07 (−0.21, 0.34)− 0.10 (− 0.46, 0.26)0.870.28 (0.05, 0.51)*0.15 (− 0.09, 0.38)0.280.22 (0.02, 0.44)*− 0.05 (− 0.27, 0.18)0.16
Soap and water availabilitycWith improved sanitationWithout improved sanitation With improved sanitationWithout improved sanitation With improved sanitationWithout improved sanitation 
0.69 (−0.07, 0.21)0.07 (−0.36, 0.49)0.390.14 (0.01, 0.27)*0.04 (−0.24, 0.31)0.360.15 (0.04, 0.26)**0.08 (−0.25, 0.40)0.97
  1. aAdjusted for child’s birth weight, child’s age, child’s sex wealth quintiles, use of clean fuel, sex of household head, ecological region, area of residence, women’s age, women's marital status, women’s education, women’s smoking status, women’s BMI, ANC 4th visits, institutional delivery, frequency of watching TV, child's diarrhea incidence over past 2 weeks and household water and soap availability
  2. b Adjusted for child’s birth weight, child’s age, child’s sex wealth quintiles, use of clean fuel, sex of household head, ecological region, area of residence, women’s age, women's marital status, women’s education, women’s smoking status, women’s BMI, ANC 4th visits, institutional delivery, frequency of watching TV, child's diarrhea incidence over past 2 weeks and household sanitation availability
  3. c Adjusted for child’s birth weight, child’s age, child’s sex wealth quintiles, use of clean fuel, sex of household head, ecological region, area of residence, women’s age, women's marital status, women’s education, women’s smoking status, women’s BMI, ANC 4th visits, institutional delivery, frequency of watching TV, child's diarrhea incidence over past 2 weeks and household water purification practice
  4. *p < 0.05; **p < 0.01