The status at two years of low-birth-weight infants born in 1974 with birth weights of less than 1,001 gm.
A two-year follow-up study of 43 infants of birth weight less than or equal to 1,000 gm born during 1974 revealed the following: average height at two years was between the tenth and twenty-fifth percentiles; average weight between the third and tenth percentiles. Fifteen (35%) developed lower respiratory tract infections during the first two years. Seven (16%) had retrolental fibroplasia. Major neurologic defects occurred in four (9%); severe developmental delay (mean developmental quotient less than 80) was found in nine others (21%). Defects of the central nervous system were closely associated with a neonatal history of intracranial hemorrhage or seizures or both.
D001827:Body Height; D001835:Body Weight; D002493:Central Nervous System Diseases / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D006128:Growth; D006801:Humans; D007223:Infant; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007384:Intermittent Positive-Pressure Breathing; D008297:Male; D009017:Morbidity; D009422:Nervous System Diseases / Q000453:epidemiology; D009864:Ontario; D011175:Positive-Pressure Respiration; D011247:Pregnancy; D012127:Respiratory Distress Syndrome, Newborn / Q000453:epidemiology / Q000401:mortality; D012178:Retinopathy of Prematurity / Q000453:epidemiology