g data and analysis indicate that >1 of 10 babies born around the world in 2010 were premature, and this translates to an estimated 15 million preterm births [1]. Improved neonatal intensive care, technological advances and expanded access to life-saving commodities and equipment have resulted in increased survival rates for very premature and extremely premature INFANTS since the 1960s (see Table 1 for preterm categories with corresponding birthweight and/or gestational age). However, the immature brain, lungs, gastrointestinal tract and skin of preterm infants are particularly susceptible to injury and abnormal development and function, often leading to long-term neurological and health problems [2, 3]. There is an inverse relationship between birthweight or gestational age and risk for developmental impairment, with INCREASING INCIDENCE as birthweight or gestational age decreases [4]. Serious impairment, defined as problems in body function or structure, which may be temporary or PERMANENT, is generally a more stable condition and typically leads to a DISABILITY requiring rehabilitation; mild impairment is a more reversible condition amenable to early intervention. Studies that have followed extremely preterm and extremely low birthweight infants into school age and early adulthood have shown higher rates of motor, cognitive or behavioral impairments as compared with infants born at term.Hope it helps you . Mark me as brainliest .