Refers to children born weighing less than 2,500 grams (5.5 pounds).
Birth weight between 1500 grams (3 lbs, 5 oz) and 2500 grams (5 lbs, 8 oz). (See also: Very Low Birth Weight (VLBW), and Extremely Low Birth Weight (ELBW))
infants weighing between 1500 and 2500 g at birth.
A birth weight less than 2,500 grams or less than 5 pounds, 9 ounces.
An infant who weighs less than about 5 pounds at birth.
A birth weight of less than 2,500 grams (approximately 5 lbs., 8 oz.).
Birth weight less than 2500 g.
Weight at birth of less than 2,500 grams (about 5.5 pounds).
A term applied to babies that weigh 5 1/2 pounds (2,500 grams) or less at birth. Low birth weight infants are of two different types: those who are born too small because they are born to soon, and those who are born on time, but are too small for their gestational age.