A sensory-based, activity-focused early intervention program was implemented in an enriched environment (SAFE Early intervention). Children in the intervention group received home visits once a month and their families were coached. Families were informed about how to support their children. Home visits were made once a month for 10 weeks.

Home-based NDT program was applied to the control group. The babies in the group were examined in a clinic environment and the families were given booklets to support their children's development.

As part of the intervention, sensory-based intervention was applied in an enriched environment. In the home setting, physiotherapists collaborated with the family to advance the intervention. The intervention was revised by making monthly home visits to infants with a corrected age of 42 weeks.

High numerical scores indicate that infants notice and respond to stimuli less than their peers, meaning the infant is hypersensitive, while low numerical scores indicate that infants notice and respond to stimuli more than their peers, or are hypersensitive.

Bayley Scales of Infant and Toddler Development- III is the most widely used tool for assessment of early development.Bayley-III including Cognitive, Language, and Motor scales . "1" if the child meets the scoring criteria for each item; If the child does not meet the criteria, he receives a score of "0". Raw scores for each subtest are summed (Total Raw Score) and then converted to scale scores, composite scores, percentile ranks and confidence intervals using the tables provided in the manual. These scores are used to determine the child's performance compared to norms from typically developing children their age (in months).