S/N	Model	Model Parameters	Goodness of Fit	Remark
1	y = a0+ a1x1 + a2x2 + a3x3 + a4x4 where x1 = maternal age x2 = maternal weight x3 = mother BMI x4 = gestation weight gain	a0 = 27.79 a1= 0.147 a2 = 0.118 a3 = 0.091 a4 = -0.048	R2 = 0.109 Adj.R2 = 0.044 MSE = 45.216 RMSE = 6.724	Bad
2	y = a0+ a1x1 + a2x2 + a3x3 where x1 = gestation age at delivery x2 = gestation weight gain x3 = Aluminium	a0 = 15.612 a1= 0.912 a2 = 0.092 a3 = -166.76	R2 = 0.556 Adj.R2 = 0.533 MSE = 22.09 RMSE = 4.70	Fair
3	y = a0+ a1x1 + a2x2 + a3x3 where x1 = maternal age x2 = maternal height x3 = Manganese	a0 = 27.32 a1= 0.235 a2 = 6.497 a3 = -15.06	R2 = 0.053 Adj.R2 = 0.002 MSE = 47.20 RMSE = 6.870	Bad
4	y = a0+ a1x1 + a2x2 + a3x3 where x1 = maternal weight x2 = gestation age at delivery x3 = Aluminium	a0 = 14.05 a1= 0.118 a2 = 0.7420 a3 = -190.06	R2 = 0.573 Adj.R2 = 0.550 MSE = 21.28 RMSE = 4.61	Fair
5	y = a0+ a1x1 + a2x2 + a3x3 where x1 = maternal weight x2 = gestation age at delivery x3 = Aluminium x4 = baby weight	a0 = 23.019 a1= 0.063 a2 = 0.369 a3 = -138.96 a3 = 0.0029	R2 = 0.622 Adj.R2 = 0.594 MSE = 19.19 RMSE = 4.38	Good
6	y = a0+ a1x1 + a2x2 + a3x3 + a4x4 where x1 = maternal weight x2 = gestation age at delivery x3 = Aluminium x4 = adequate sleep where x4 equal; 1 = No and 0 = Yes	a0 = 18.6473 a1 = 0.1498 a2 = 0.521 a3 = -190.99 a4 = 2.519	R2 = 0.668 Adj. R2 = 0.643 MSE = 13.60 RMSE = 3.68	Good (Best)