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Table 6 Average marginal effects from multi–level birth weight models, Z statistics in parentheses

From: A multilevel analysis of prenatal care and birth weight in Kenya

Variable Birth weight (grams)
  (1) (2) (3) (4) (5)
Adequate prenatal care -14.36 0.708 301.076 365.457 2121.26
  (-0.48) (0.02) (1.04) (1.11) (1.72)
mother’s age at birth of child -45.413 -13.375 -17.706 -19.669 -19.635
  (-2.59) (-0.76) (-0.98) (-1.05) (-1.04)
Square of mother’s age at birth of child 0.716 0.264 0.33 0.36 0.358
  (2.38) (0.88) (1.08) (1.14) (1.13)
Urban residence -60.869 94.656 98.302 100.768 101.094
  (-1.62) (2.31) (2.39) (2.42) (2.43)
Primary education 130.635 369.865 369.038 368.947 366.505
  (2.63) (6.60) (6.59) (6.58) (6.45)
Secondary education 113.868 680.26 678.267 677.87 684.583
  (2.04) (7.94) (7.91) (7.91) (7.92)
Higher education 81.324 775.407 720.137 706.745 678.97
  (1.19) (7.37) (6.11) (5.78) (5.38)
Final say on own health care 10.707 0.224 -1.544 -2.146 -3.928
  (0.31) (0.01) (-0.05) (-0.06) (-0.12)
First born child -83.587 113.293 120.996 123.401 126.334
  (-2.48) (2.79) (2.93) (2.96) (3.02)
Male child 117.638 126.283 125.46 124.948 125.745
  (4.78) (5.18) (5.14) (5.11) (5.14)
Wealth index -14.082 193.084 197.401 198.632 201.448
  (-1.02) (6.97) (7.05) (7.05) (7.07)
Selection residual   -2106.914 -2223.24 -2264.1 -2292.424
   (-8.56) (-8.23) (-7.85) (-7.79)
Prenatal care residual    -171.664 -254.642 -300.713
    (-1.04) (-0.97) (-1.09)
Interaction of prenatal care with residual     59.945 -4037.807
     (0.41) (-1.42)
Square of Interaction of prenatal care with residual      3114.758
      (1.40)
Cube of Interaction of prenatal care with residual      -746.803
      (-1.34)
ѱ 203813.423 182023.396 181393.365 181389.958 181478.556
ρ 0.449 0.414 0.413 0.413 0.414
LR test for ρ =0: χ 1 2 (P-value) 133.77 (0.00) 115.08 (0.00) 114.18 (0.00) 114.17 (0.00) 114.43 (0.00)
Number of observations 2,741 2,741 2,741 2,741 2,741