Conclusion : Positive clinical ly meaningful effects ( > 5 points ) are seen to an age of 36 months , but are no longer present at 5 years
Objective : To determine in a systematic review , whether interventions for infant development that involve parents , improve neurodevelopment at 12 months corrected age or older .
Sustained effects of high participation in an early intervention for low-birth-weight premature infants.
Effects of high participation in the Infant Health and Development Program ( IHDP ) , an 8-site r and omized trial that targeted low-birth-weight ( LBW ) premature infants ( N=1,082 ) , were estimated . Children in the treatment group were offered high- quality center-based care in their 2nd and 3rd years of life ( full-day care , 50 weeks per year ) . High-dosage effects were estimated with a new methodology that found a matched comparison group within the follow-up group for those with high participation rates ; these estimates were compared with traditional intention-to-treat ( ITT ) estimates . At age 8 , effects on the Wechsler Intelligence Scale for Children Full and Verbal scales for children who attended > 400 days ranged from 7 to 10 points . For the heavier LBW infants ( 2,001 - 2,500 g ) , the effects were about 14 points for > 400 days ; for the lighter LBW infants ( < or = 2,000 g ) , the effects were about 8 points . These effects were all substantially higher than corresponding ITT effects . Similar but smaller effects were found for children who attended > 350 days
Conclusion : Positive clinical ly meaningful effects ( > 5 points ) are seen to an age of 36 months , but are no longer present at 5 years
Objective : To determine in a systematic review , whether interventions for infant development that involve parents , improve neurodevelopment at 12 months corrected age or older .