XXXX media and language development: a six-year follow-up study with case-control.

@entity1 @entity2171
The 2nd Hj  rring Cohort Study, a prospective cohort study, comprised 94% of the 463 three-year-old @entity1 residing in the municipality. Among this cohort we found 40 @entity1 (9%) who had constant signs of @entity2171 ( @entity2171 ), in one or both ears, at 4 examinations in the course of 6 months. Five years later, 12 of the @entity1 who had previously had long-lasting @entity2171 had left the municipality. At the age of 8 years the entire cohort had a Silent Reading Word Test (OS-400). Six months later, the 26 @entity1 with long-lasting @entity2171 who were still residing in the municipality and 26 control @entity1 were tested with the Revised Peabody Picture Vocabulary Test and the verbal part of the Wechsler Intelligence Scale for @entity1 (WISC) test. The controls were matched by sex, age, school, grade level, and controlled for classroom and social stratum. The @entity1 with long-lasting @entity2171 did not score lower than the control @entity1 on the 3 tests. In a separate analysis @entity1 with long-lasting bilateral @entity2171 did not score lower than their controls. On the WISC and PPVT-R tests the variability in the case group was greater than in the control group. More comprehensive and varied studies seem needed to elucidate the relationship between language development and @entity2171 .
