Papers from Archives of Pediatrics & Adolescent Medicine for release December 6 include:
* Children who attend large group child care facilities before age 2½ appear to develop more respiratory and ear infections at that age, but fewer such illnesses during elementary school years
* Only about one-fourth of children participating in organized sports—such as baseball, softball or soccer—receive the government-recommended amount of physical activity during team practices
* Dating violence among adolescents is common and those who physically assault dating partners are also likely to have perpetrated violence involving siblings and peers
* Infants who are exposed to more television or other forms of media at age 6 months may have lower levels of cognitive and language development at age 14 months, according to a study of 259 mother-infant pairs
* Exposure to secondhand smoke—as measured by blood levels of cotinine, a biochemical marker of nicotine exposure—appears to be associated with poorer mental health among children (average age 8.3), according to a study of 901 non-smoking children
* Walking or biking to school appears to be associated with improved cognitive performance among teen girls, according to an assessment of 1,700 adolescents age 13 to 18
(Arch Pediatr Adolesc Med. 2010; 164:1132-1137; doi:10.1001/archpediatrics.2010.252; 164:1105-111; doi:10.1001/archpediatrics.2010.243; doi:10.1001/archpediatrics.2010.244.