highly significantp -value < 0.01
Indeed, the estimated coefficient on Index 2 is about 1.5 times that for girls and now highly significant statistically as well as economically (0.042 SDs per μg/m 3 vs 0.028 for girls, p -value < 0.01).
Indeed, the estimated coefficient on Index 2 is about 1.5 times that for girls and now highly significant statistically as well as economically (0.042 SDs per μg/m 3 vs 0.028 for girls, p -value < 0.01).