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Table 5 Mediation analysis of direct and indirect effects of the intervention on birth weight of pregnant women in West Gojjam Zone, Ethiopia

From: Effects of guided counseling during pregnancy on birth weight of newborns in West Gojjam Zone, Ethiopia: a cluster-randomized controlled trial

Variables Estimate (SE) 95% CI
Total effect of the intervention on birth weight 0.260 (0.038) (0.186,0.335)
Direct effect of the intervention on birth weight 0.172 (0.039) (0.094,0.249)
Total indirect effect of the intervention on birth weight 0.088 (0.023) (0.041,0.138)
Indirect effect1 0.046 (0.018) (0.011,0.084)
Indirect effect2 0.023 (0.012) (0.001,0.050)
Indirect effect3 0.018 (0.006) (0.007,0.032)
Effect of the dietary practice on birth weight 0.007 (0.002) (0.002,0.012)
Effect of gestational weight gain on birth weight 0.049 (0.007) (0.035,0.063)
Effect of the intervention on dietary practice 6.330 (0.617) (5.116,7.541)
Effect of the dietary practice on gestational weight gain 0.060 (0.015) (0.029,0.091)
Effect of the intervention on gestational weight gain 0.483 (0.242) (0.006,0.959)
MUAC baseline 0.050 (0.008) (0.032,0.067)
Dietary practice baseline 0.003 (0.002) (−0.001,0.008)
Being female 0.014 (0.035) (−0.054,0.083)
Increasing wealth 0.004 (0.013) (−0.022,0.030)
Having decision making power on monetary use 0.004 (0.038) (−0.070,0.080)
Piped water supply 0.036 (0.038) (−0.038,0.0112)
Having formal education 0.025 (0.049) (−0.072,0.122)
Age 0.003 (0.003) (−0.003,0.009)
Crop production 0.002 (0.021) (−0.040,0.045)
  1. Indirect effect key:
  2. Indirect effect 1: shows intervention effect on birth weight through dietary practice
  3. Indirect effect 2: reveals intervention effect on birth weight through gestational weight gain
  4. Indirect effect 3: indicates intervention effect on birth weight through dietary practice and gestational weight gain