Figure 1.

The percentage change of “ABC score + 1” in association with different frequency of antenatal music training (white circles) and maternal talk to fetus (black circles). Percentage changes were obtained by exponentiating the natural log scaled beta coefficient of Tobit regression and subtracting 1. Values were adjusted for family income, children’s sex and mother’s marital status, education level, age at birth of the study child, and gestational diseases. ABC, autism behavior checklist.